Tuesday, January 16, 2018

9 Reasons ComposiMold Reusable Molding Materials Are Great to Have

· ComposiMold Molding Materials change the way you create unique molds and casts from almost any object. Great for duplicating in plastic, plaster, cement, silicone, resins, epoxy putty, moldable plastic, and even chocolate.
· Just take a rock wall hand hold, a fishing lure, a broken part from your R/C drone, your jewelry , your toys, your fishing lure and mold it with ComposiMold or ImPRESSive Putty by melting the molding material in the microwave and pouring or pressing it over your original part.
· Make brand new parts from broken parts and make them as good as new with this heat and pour molding material. And make NEW molds from the old mold anytime you want instantly by re-melting in your microwave.
· ComposiMold and ImPRESSive Putty can be re-melted and re-used as many times as you want and used with tons of different casting materials.
· The number one re-useable molding material and the simplest molding materials available. The molds are crisp, highly detailed molds, and gives you the ability to make complex shapes through a variety of molding techniques including 2-part molds, brush-on molds, and push molding.
· ComposiMold molding materials work with dozens of casting materials including the sharp looking ComposiCast, Composi-Stone, ComposiMold Plaster, ComposiMold Soy Wax, and many others such as fast cure cement, soaps, epoxy putties, silicone rubbers, latex, and even edible treats such as chocolate and more.
· ComposiMold works as your duplicating tool and with a long shelf-life of several years, the material can be re-melted and re-used any time you want.
· Just pour or press over your3-D printed parts, your clay shapes, your antique frame, your broken furniture pieces, your stylish trim designs, your wood sculpture, your custom artwork to duplicate your very own. Professional molding techniques you can do at home.
· ComposiMold Re-usable Molding Materials are able to replicate what you want you and can continuously be re-melted and re-used to make your ideas real like your stepping stones from cement, plaster duck decoy, copies of your wood carvings in resin, and so much more.

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Saturday, January 13, 2018

Casting with Plaster of Paris and ComposiMold or ImPRESSive Putty

Casting with Plaster of Paris

ComposiMold Plaster of Paris Casting from a real seashell
Seashell in Plaster of Paris
Plaster of Paris is low cost, easy to use, and makes good castings. Plaster of Paris comes as an easy-to-mix formula that mixes with water and dries to a dense, durable, and smooth and bubble free finish. Plaster of Paris is a great material to use for basic castings and molds and art projects because it is simple to mix and use. The Plaster of Paris sets in a few minutes, although it takes an hour before it is ready to be removed from the mold. It takes 24-48 hours to fully cure. Using Plaster of Paris is easy, but there are procedures to follow that will make you successful in your plaster castings.

ComposiMold Plaster of Paris Casting of frogs for a garden
Plaster Casting of Frogs
Plaster of Paris is not a plastic. It is a hard white substance made by the addition of water to powdered and partly dehydrated gypsum. It is hard like a cement or concrete but white and not as strong. So don’t use plaster for very thin castings. Basic shapes or designs that have a solid backing to them will be more successful. If you need some flexibility or stiffness in the final castings, then move to a plastic.

Creepy Plaster Casting of a Dolls Head
Creepy Plaster Casting of a Dolls Head

Materials you will need:
·         Plaster of Paris powder. For ComposiMold or ImPRESSive Putty Molds, please use our ComposiMold plaster that has been formulated to cure to a strong solid casting in these molds. By creating cure more quickly, the water in the plaster does not react with the ComposiMold or ImPRESSive Putty to give strong, hard plaster castings. You can also purchase a powder additive to add into any plaster of paris to obtain a similar affect.
ComposiMold Plaster of Paris Casting
·         Water: Use cold water to cure slower and give you more control over the reaction and give more time to fill the molds.
·         Mixing container that is large enough to hold to water and plaster. Plastic containers are nice because you can deform them afterwards to break away the hard plaster and re-use the container.
·         Measuring cup or any cup that can be used to measure out 3 parts of plaster powder to 1 part water.

Make your Plaster Castings

The ideal ratio for a Plaster of Paris mixture is 3 parts Plaster of Paris powder to 1 part water. Measure out the water and pour it into your mixing container. Some recipes suggest 2 parts plaster to water, but this will create a much weaker plaster casting. The thicker you can be while still being able to pour the better. Start with a 3 to 1 ratio and if necessary add small amounts of water to make it easier to pour.

Break any clumps of plaster up with a spoon. If you use your hands to mix, be sure to wear gloves.

When mixing the water and plaster, you should mix the powder into the water.  Pour the plaster powder into the water spreading it out over the surface of the water. After it is poured all poured in, tap the sides of the mixing container and let the plaster powder fill with water to reduce bubble formation. The plaster powder will sink into the water. When you are finished adding the plaster, it will be slightly above the surface of the water and not easily absorbed by the water.

Gently stir the plaster and water to form a nice slurry similar to a thick pancake mix.  Gentle stirring of the plaster will reduce the chance of bubbles being mixed into the mixture.
Pour the plaster into your molds. If you want to learn how to make your own molds, check out our mold making videos and get your free mold making e-book.

A couple other tips for plaster casting:
Do not pour any extra plaster down your drain. It can harden and destroy your plumbing. You can dilute the plaster so it does not create a hard plaster or let it harden and throw it away.

To make colored plaster, you can add colorants to the plaster mix while it is still in liquid/paste form. Remember that you will be adding color to white, so you will need more colorant to make darker colors. Any types of paint will work.

To paint the plaster casting after it has cured, use a layer of gesso or primer first to seal the plaster, and then you can paint the plaster any way you want.

Video of Plaster Casting of a Duck Decoy

ComposiMold Plaster of Paris Casting of an Ice Cream
ComposiMold Plaster of Paris Casting of an Ice Cream

Tuesday, December 5, 2017

Making Awesome Bath Bomb Shapes DIY RECIPE and Tutorial


My daughter just returned from Lush Bath with some cool bath bomb shapes and designs, which gave me the idea for a post on molding your own bath bombs with ImPRESSive Putty, a re-usable molding material that you can use to make as many different shapes as you want.

How about a train shaped bath bomb?

R2D2 bath bomb? If you have the shape, you can make it.

FIRST, How to Make Your Bath Bomb Mold Shape using ImPRESSive Putty

The ImPRESSive Putty is a re-usable molding material that can be re-melted continously to make different shapes. I'm going to show you on a train shape, but you can use any shape that you want.Mold-wise, I wouldn't make the shapes too complicated as the bath bomb material may not be strong enough to keep it's shape. But go wild on the different fragrances, colors, and added textures.

First, soften the ImPRESSive Re-usalbe Molding Putty. For a 6 oz. size, it will take about 50 seconds in most microwaves, but microwaves will vary. Let it cool after you've heated it so you don't burn yourself.

Press over your object that you are molding and let it cool.

Now to make the bath bomb.


Dry Ingredients mixed together first:
  • 1 cup baking soda
  • 1/2 cup Epsom salts
  • 1/2 cup citric acid

Wet ingredients mixed separately before adding together:
  • 1 tsp. water
  • 2 tsp. essential oil
  • 3 tsp. oil (olive oil)
  • food coloring (any color you want)


Mix the dry ingredients  together. And separately mix the wet ingredients. Then slowly mix the wet into the dry and mix until it's clumpy. Do not add too much of the wet ingredients or the bath bomb will begin to activate before its time. This is the hard part. If you add too much water, the bath bomb will begin to foam on its own, but too little water and it won't stick together. Start with a little and build up.

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Friday, December 1, 2017

Instead of Silicone Molds, Make Silicone Castings

Silicone is a nice rubber, but is it worthwhile to use it for silicone molds?

I argue the answer is no for most mold making applications performed at home, small businesses and probably some large businesses for prototype work and the construction industry. Stop wasting your money on silicone molds and use the silicone for your final castings instead. Make rubber ducks, rubber toys, dog toys, and silicone cups. Here’s my argument about why you should save your money and use a re-usable molding material instead of the silicone for molds.
Instead of Silicone Molds, Make Silicone Toys: https://youtu.be/UcX4xtJprXY

What do you use if you’re not going to use Silicone for molds? 

The solution we suggest is a reusable molding material. After you purchase it, you’re all set. No more spending money on mold making materials. We have two main versions for you to use: ComposiMold and ImPRESSive Putty. They can be re-melted and re-used as many times as you want.  
Use the re-usable molding materials when:
  • You are making several to a dozen or more duplicates of your original. The actual number of duplicates you can get out of one mold will vary depending on the casting material and complexity of the mold. With chocolate or soy wax, you can make hundreds of duplicates with the same mold. With concrete the number is lower.  BUT, when you’re mold starts to lose detail, just re-melt it to make it again. Anytime you want.
  • You want great detail, the option to make changes, the ability to make molds anytime you like, and you like to be environmentally conscious.
  • Want to save money

Don’t use the re-usable molding materials when:
  • Your mold needs to go into an oven or other hot source. The silicone molds can typically handle up to 400 F, so if you’re cooking in the molds, silicone would be better.
  • Your casting with hot materials such as pewter (even silicone can’t handle higher melt metals).
  • Also, if you’re making a lot of duplicates of a larger piece (1/2 cubic foot or so) with a fast cure resin, then you’d be better off using some silicone molding material, but even here, I would recommend using a brush-on silicone that is backed up by either a plaster mold or a re-usable rubber molding material (ImPRESSive Putty).

Look at some of the silicone mold options

First, the “cheap” silicone molds that are shown on a zillion YouTube channels really aren’t that cheap. It’s called Oogoo, and it is cool, but it shrinks by 25 to 35% over a week or two depending on the humidity, Plus, it’s not exactly cheap if you are going to make a few molds. This is the dilemma I ran into when I was molding parts for my model airplane pieces. These molding supplies adds up!
Using Oogo as a Silicone Casting Material instead of a Silicone Mold: 

The silicone materials sold specifically for silicone molds are nice, but they are expensive. Here’s the graph I bring up whenever making this comparison. One silicone mold cost about as much as one re-usable mold. So after 10 molds, it would cost you $500 in molding material costs. Whereas, with a reusable molding material, your molding costs would still be the cost of one mold.
The Cost of Silicone Molds Continuously Goes Up, But Not For Re-usable Molding Materials
The Cost of Silicone Molds Continuously Goes Up, But Not For Re-usable Molding Materials

So the solution, use the silicone for your castings! It’s a great rubber. Use it to make the soles of your shoes, for your Stretch-Armstrong doll (err sorry-action figure), for your IPhone case. Dozens of uses. But not mold making.

Here we use Silicone for a Cosplay/Theater Prop of an Axe. But we didn't use the silicone for the mold.

Tuesday, November 28, 2017

Make Your Own Soft Bait Fishing Lures with Plastisol PVC Based Do It Molds Rubber

Make Your Own Soft Bait Fishing Lures with our soft bait lure kit. With the Soft Bait Lure Kit, you have 9 unique shapes to get you started. Mix and match heads, bodies, and tails to create the perfect lure for your angling needs. Then make a mold of your unique lure shape and cast it into a soft bait rubber. And the great part is when you are ready to make your own unique shapes, you can, just by re-melting the ImPRESSive Putty mold. Melt your mold and make as many different shaped lures as you want. 

Plastisol or soft bait, or is a polyvinyl choloride (PVC) with a large amount of plasticizer in it to make it soft. It makes nice fishing lures, but it is unhealthy for you. Do not breath the fumes as it is a carcogen.

Better, although more expensive options are available for your soft bait fishing lure. ComposiMold does not currently sell a Plastisol rubber because of the health concerns, but we have had many people ask if they can use the ImPRESSive Putty with Plastisols. The answer is yes you can. The ImPRESSive Putty allows you to make your own unique molds. Here we show you how we used Plastisol from Do It Molds (doitmolds.com) to make a custom fishing lure. The first part uses the parts from our Soft Bait Lure Kit to make the mold, but instead of using the Soft bait rubber provided with the kit, we used the Do It Mold Plasticizer.

The re-usable mold fishing lure kit comes with a 2 part soft rubber bait lure material that is mixed together and poured into the re-usable mold, but we have been asked whether it will work with the soft PVC based lure material such as the Do It Molds Soft Bait Rubber https://store.do-itmolds.com/Plastisol-and-Additives_c_306.html. The answer is yes as we shall show you in this video.

Soft Bait Fishing Lures Made with Do-it Plastisol Rubber
Plastisol Fishing Lures Made in ImPRESSive Re-usable Molding Putty

To make a soft rubber bait with the PVC Do-it mold soft rubber, the mold making process is the same.The one part plastisol material makes it easy to make your lures. Pick your shape and hot glue the components together.  Then heat the ImPRESSive Putty in the microwave for about 15 to 20 seconds. Then press the putty over your fishing lure shape. Let this cool or stick it in the freezer for about 10 minutes. You know the mold is ready when you press on it and it does not stay deformed. Pull out your original and you are ready to cast your rubber.

Instead of using the 2 part rubber provided in the kit, we will show you the Do It Molds PVC Based material.To use, mix the rubber and heat it until it is clear. For heating, we used a microwave, but be warned, the fumes do not seem that healthy.

Add colorants or scents at this time, mix this well while it is still hot.

Make sure the hot rubber is not steaming. Pour the hot rubber into the mold. Be sure to fill all the cavities. Because the rubber cools quickly, you want to fill the mold cavity as fast as possible. 

After the casting rubber has solidified by cooling has cool, which took about 5 minutes, pull your soft bait lure out of the mold.  There you have it. Make as many as you’d like. We made a couple more of these soft bait lures before moving on to a different shape.

And don’t forget, what makes this kit truly unique is that you can re-melt it to make new shapes any time you want. And when you’re the one catching all the trophy fish, let the other guys know that they can make their own lures. See you on the water. 
Soft Bait Fishing Lure Kit

Learn more about the Lure Making kit  by visiting www.luremakingkit.com and thanks for watching.

Do It Molds Plasticol Rubber can be found at https://store.do-itmolds.com/Plastisol-and-Additives_c_306.html

Whether your bass fishing or trout fishing, you know what's going to catch that fish. And your special lure is going to make all the other fishermen jealous.

Sunday, November 19, 2017

Making Lego Crayola Crayons and Other Shapes

Crayola Crayons are a great casting material. You can make your crayons into any shape. Including Lego Shapes or animal shapes. The process is very straight forward. The Crayola crayons are nice because they have reasonably good colorants added, but any other crayon could be used. A recent addition to the crayon world is the all-natural soy wax crayon.
Making your own Lego crayons
Lego Crayons

There are two ways to make a mold of a Lego with Crayola Crayons. The first uses ComposiMold. The second uses ImPRESSive Putty molding materials. These are re-usable molding materials that can be re-melted or re-softened to make as many molds as you want. To start, let's talk about the ComposiMold:

1. Hot glue the Lego piece into the bottom of a plastic cup. Be sure the Lego is facing up. Do not have it upside down. You can also make a little mold box with other Lego pieces like we did when we made Jell-O Legos (https://composimoldstore.com/casting-material-options/#jello )
2. Melt a small amount of ComposiMold. You'll only need a little a little bit. Melt approximately 30 seconds worth in your microwave.
3. Let the ComposiMold cool a little before pouring onto the Lego.
4. Pour onto the Lego piece.
5. Let cool, or place the cup with the Lego piece into the freezer to cool fast. A mold this small will solidify in about 15 minutes.
6. When the ComposiMold is rubbery, pull out the mold and the original Lego piece.
7. Melt the crayons. Crayons do not have any water in them, so you will have to melt them on a stove. Be careful.Crayons melt at about 105 F.
8. Before pouring the crayon wax into the mold, let it cool so it's almost re-hardening.
9. Pour into the mold cavity.
10. Let cool to solidify. Give it about 20 minutes or about 5 minutes in the freezer.
11. Pull the Lego piece out of the mold.


You can also make the mold with the re-usable molding putty, ImPRESSive Putty instead of the ComposiMold by pressing the ImPRESSive Putty over the Lego piece. 

Other shapes that may be interesting: 
1. Making seashell shaped crayons
2. How about a starfish crayon with every finger a different color?
3. Make and mold a shape from polymer clay that is then made into a crayon.
4. Lego person (cover holes in the back of the lego person with clay first)
5. A doll's hand
6. A banana
7. Build a structure with the Legos and then mold it as a full piece.

If you want to add the connector piece to the back of the Lego crayon you can. When the crayon was is still liquid, place another lego block on to the back of the Lego mold. 

Thursday, November 16, 2017

11 DIY Christmas Crafts

To me, making Christmas crafts is the most exciting part of the winter holiday. Christmas crafts bring out the maker almost as much as the Halloween ghouls in the fall, but typically Christmas crafts are a touch less creepy and more festive. But don't let anything stop you from the more atypical crafts.  Anything can be much more enticing if made by you. Let's review 11 DIY Christmas crafts that are good for adults or kids. So start making those Christmas Gifts!

Christmas Ornaments are the obvious place to start for Christmas Crafts. Air dry clays or polymer clays can be used easily. Or you may want to try your hand at resin casting your ornament. Same mold

Soaps for Christmas Gifts. You can decide if you want to do a Trump Soap or not. We used a 3D printer for this, but you can use any good soap shape, even another piece of soap.

Oh! Cute Kid Pictures! Framing those should be a top priority Christmas crafts. One for each relative. We used polymer clay to make the frame and airdry clay to mold.

Jewelry Making for Christmas Crafts. How to decide which color earrings? Don't decide. Make them all.

Coffee mug decals crafted for individual tastes. With the ImPRESSive Putty, you can reform a decal for everyone on your Holiday list.

Color Changing Mood Ring. This has been a surpisingly popular choice. You can use other colors. Materials needed include ComposiCast Clear, thermochromic ink, ComposiMold, and shapes to mold.

Polymer Clay Dangle Earrings. Crafted by You! These wings are nice, but you can do any shape.

Beeswax candles. Here we do a Lord of the Ring Pez Dispenser Christmas Craft Theme.

Make your own Guitar Pick for the Guitarist in your life, and we all have at least one. Guitarist, that is.

Shopkins Bubble Gum Machine! Craft crazy here!

Christmas chocolates is a good way to end it. Here we make a Chocolate Santa. Eat chocolate Santa's and save the Gingerbread people!

What are you going to make? From chocolate to jewelry candles to soaps. Your DIY Christmas crafts will be the best ever. Thank you. Merry Christmas and Happy Holidays.

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Thursday, November 9, 2017

How to Make Your Own Coffee and Beer Mug Decals with Polymer Clay and UV...

Found the original mug with the golfing guy at a recycling shop. Now I have my Christmas gift for my uncle all done. For the morning, he will have his coffee mug with the golfer decal on it. In the evening, he will have his beer mug.

This video shows you how to make your own coffee mug or beer mug decal.

Here are the finished mugs:

You can even make your own shape. In an earlier video, we made chocolates by carving the shapes out of clay and then using that to make your chocolate bar (see below). This same process can be used for polymer clay decal molds.

Thank you.

Tuesday, October 31, 2017

Making Molds for Polymer Clay, A Leaf and Candle Holder

Polymer clay is a modeling clay that can be formed by hand or in these examples molded with molds. Polymer clay is well suited making art pieces and craft projects because the polymer clay is hardened in the oven to make reasonably sturdy finished parts. These “how to” tutorials demonstrate methods of forming the clay into unique shapes using molds, and we are using the ImPRESSive Re-usable Molding Putty.

The polymer clay mold making video below demonstrates the methods for making a mold and then forming the polymer clay into the shape of a leaf. The mold picks up the details in the leaf. The polymer clay push mold can be re-used or re-shaped after it has been used for the leaf. 

The second video demonstrates the methods to mold and cast a wood piece into polymer clay. This candle holder is untreated wood. This mold was made using the polymer clay push mold used in the first video. The Putty was also melted down to make the soy wax candle of the lightbulb.

Tuesday, October 24, 2017

How to Make Your Own Chocolate Candy Bar Molds

I think it's a song by BTO...any chocolate is a good chocolate, so I ate what I could eat, oh baby..." that's right isn't it?

You can make your own unique chocolate candy bar molds using ComposiMold. Each one can be unique. How about adding a flower to the top or the initials of the people getting married? How about a candy mold for the Halloween?
Chocolate candy bar mold
Chocolate Candy Bar Mold 

To make a unique chocolate candy bar mold, we use ComposiMold-FC, a re-meltable, re-usable molding material. It melts in the microwave into a liquid that is poured over your part.

Take an object you like and turn it into a  candy mold using ComposiMold-FC
Take an object you like and turn it into a  candy mold using ComposiMold-FC
So here's a video showing you what you do to make the candy molds. Here we make our original shape from clay that we then mold with ComposiMold into the shape of Maine. We also do it with the cookies. So now we have the chocolate candy bar mold and the cookie mold.

The next video shows the process to make a candy mold of a horse's head. The original was a magnet.

The synopsis is that you can make your own candy molds of almost anything. Just by using ComposiMold, a re-usable mold making material that makes the process simple. You'll have fun making a variety of different shapes and molds. Experiment!
Chocolate candy molds for the top of a cake
Chocolate candy molds for the top of a cake

Halloween Candy Bar Molds for the Top of a Special Cake
Halloween Candy Bar Molds for the Top of a Special Cake

Carved a Candy Bar Mold from a Piece of Rubber.
Carved a Candy Bar Mold from a Piece of Rubber.

Candy Bars of Different Letters!
Candy Bars of Different Letters! 

Monday, October 23, 2017

The 7 Key Steps to Molding Successful Plaster Castings in a ComposiMold mold.

The 7 Key Steps to Creating Successful Plaster Castings in a ComposiMold mold.

Making a Plaster of Paris Casting in ComposiMold: 

Follow the basic mold making instructions on our mold making instructions provided with every ComposiMold to make a mold with ComposiMold. The tips below will set you up for success when using plaster of paris, hydrocal, ultracal, dental plaster or other plasters as your casting material. 

Plaster of Paris Casting in ComposiMold
Plaster of Paris Casting in ComposiMold
With ComposiMold, making molds and plaster castings is really easy. Here are seven tips of the trade:

1. Keep the plaster of paris casting material as thick as possible to ensure a strong casting. Start with a ratio of 2.5 parts plaster to 1 part water by volume and if possible reduce the amount of water. If you need more water to make it pourable, add very small amounts.

Mix ratio for Plaster of Paris
Mix ratio for Plaster of Paris 

2. Add a t-spoon of PVA glue such as Elmer's Glue for every cup of water to make the casting stronger. A bit of alum powder will also increase the strength of the plaster of paris.

3. Use talcum powder as a mold release. Sprinkle it into your mold shake it around, and then pour it out. This does two things: works as mold release and also creates a barrier so that the plaster of paris hardens in the ComposiMold. Even better, is a mixture of talcum powder (baby powder) and mineral spirits. 
Plaster of Paris Casting of Buddha
Plaster of Paris Casting of Buddha

4. Pour the plaster into the lowest point of the mold and let it rise upward to help dislodge bubbles.

5. Large plaster of paris castings may need to be cooled. Large for plaster castings would be 500 cubic inches or so, so pretty large.Typically, plaster does not create a large exotherm, but for very large castings, this may occur. This is easy to work around by cooling the ComposiMold mold first in the freezer or refrigerator. 

6. Tap and bounce your mold when it is filled with the plaster to dislodge any bubbles to create bubble free castings.

7.  Pull the plaster of paris casting out of the mold as soon as possible and then let it cure for 24 to 48 hours before painting or sealing.

Plaster of Paris Casting of Wood Ornament
Plaster of Paris Casting of Wood Ornament

Experiment: With ComposiMold you can make lots of different molds with the same mold making material. Make a mold, cast your plaster of paris, and do it again. Simple, effective, and fun.

Plaster of Paris makes a nice casting material for teaching mold making because it is relatively inexpensive. It can also be painted, sanded, and fixed easily.

Sunday, October 22, 2017

This is NOT for Making Your Own Silicone Molds

Have your ever tried to make your own silicone molds? If so, I'm sure you have made many a mold that did not work the way you wanted it to. Did your part float? Did you have bubbles? Did you want to make changes and realize that the silicone is a two part molding material that can never be changed after it has cured? Making silicone molds takes skills and knowledge you can't get without experimentation:

  1.  How do you pour the silicone?
  2.  How do you keep your part from floating?
  3.  How will you make your mold? 2 parts? 1 part? Brush-on? Where does the parting line of your mold go?

Silicone is an amazing rubber material that is a strong, durable rubber. After the silicone has cured, it will remain a rubber forever. My advice is to keep the silicone for your castings, and use a re-usable molding material for your molds.

I say this, of course, because I'm biased and think that ComposiMold and ImPRESSive Putty are better choices for making your own molds. Whether you are learning how to make your own molds or are already skilled (and already spent tons of money learning :) ), these re-usable molding materials can help. ComposiMold and ImPRESSive Putty are re-usable molding materials that can be re-used Any Time You Want. If you make mistake, make it again. If your mold starts to get old, make it again. If you change your mind, make it again.

Silicone molds will last for years. If you're into nostalgia you may like that. But you can also keep ComposiMold molds for years if you'd like...keep them in a ziplock bag and out of the sun and they'll last as long as you like.

Silicone molds will not allow you to make changes, fix mistakes, or experiment. Better materials exist.

ComposiMold and ImPRESSive Putty. Give them a try.

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Thursday, October 19, 2017

Restoration of Building Column with Re-usable Molding Putty

Many older buildings feature beautiful and historical designs but require updates and restoration. To restore and preserve these fetatures and designs can be performed with our Re-usable Molding Materials. 

We were asked to support the historical renovations of some columns for a historical building nearby. Initially, the forms were going to be 3-D printed, but there was a fear that the polymers used in the 3D printer would not be able to handle long term exposure to the cold of a Northern (Maine) climate year after year. The other alternative was to remake the wooden components from scratch, but that would require a different level of effort. 
So the simple solution was to mold the pieces. Two different pieces made up the bottom of the column. A total of 32 pieces were needed to fit around 3 columns. Ten pounds of ImPRESSive Re-usable Molding Putty was used for these two components to make 4 molds. The advantages of the ImPRESSive Putty is that it is re-usable. So like any other tool that the carpenter uses for the construction or reconstruction of a room or a building or a porch, the Putty is used when you need it. The ImPRESSive Putty melts in a microwave, low temperature oven, convection oven, or slow cooker. When it is melted it is a soft putty that is PRESSed (thus the name :)) over the part.
The ImPRESSive Putty cools to solidify, so an hour in the freezer gave us a mold. Several times we decided we did not like how the mold came out, so we re-melted the mold and made it again. 
Woode Restoration with molds
We used ComposiCast resin with joint compound and plaster as fillers. ComposiCast is an epoxy resin that has reasonable strength. We also added a UV inhibitor. The resin ratio is 1:1 by weight or volume. ComposiCast also has a very wide range so you don't have to be that accurate with the ratios. The filler helped reduced the cost and the exothermic reaction. We added 50% filler to the resin mixture by weight. 
We planned on 10 hours cure time, but it ended up taking about 7 hours to become cured enough to pull the castings. This allowed us to do 2 pours per day. 
After this construction project was complete, the ImPRESSive Putty can be used for the next project just be re-melting and re-using. It is also excellent for fixing fixture on walls and ceilings by pressing over the fixture anytime you need to duplicate a shape.

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