CopyFlex® New and Improved! – Liquid Silicone Mold Making Rubber
CopyFlex® is a food grade, liquid silicone rubber that was designed specifically for mold making. Unlike many liquid silicones that have complicated mix ratios and very thick consistencies, CopyFlex® is easy to use because equal amounts of both catalyst and base are combined to produce a silky smooth, low viscosity liquid silicone rubber that reproduces the finest details. A 1:1 mix ratio is very convenient for large projects and also enables moldmakers to easily pour molds that may weigh as little as two ounces. Conventional liquid silicone mold making rubber often has a cure time of 24 to 36 hours which is very long when compared to CopyFlex® which will cure in four hours at 70 degrees F.
When you order CopyFlex®, you will receive one half of the amount you ordered as Part A (catalyst) and the other half as Part B (base) which combined will create CopyFlex®.
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CopyFlex® is sold by the pound. As your order increases, the total cost decreases. In other words, if you purchase anywhere from 1 to 4 pounds, your cost per pound is $25.00. If you purchase anywhere from 5 to 9 pounds, your cost per pound is reduced to $24.00, and so on.
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Apply Anchor-Dit™ to the back side of the original and press it down into the center of the mold box. Anchor-Dit™ should smoosh out the along the sides, insuring that a strong yet temporary bond has been established and that no silicone will creep underneath. With the excess Anchor-Dit™ removed, the mold box is ready to receive the CopyFlex® liquid.
Mix a small amount of CopyFlex® liquid silicone rubber – just enough to paint a thin coat over the object ensuring that air bubbles are not trapped on the surface.
Scale-out equal parts of A and B by weight, combine the two parts in a container and mix thoroughly until the color is uniform. Make sure unmixed material does not remain on the sides or bottom.
Using a natural bristle artist brush, paint on a thin coat of CopyFlex® onto the original. The idea here is not to cover the object but to imbed the mold making silicone into the details. We call this a “skim coat” and it ensures that no air bubbles will be trapped in the nooks and crannies of the surface.
Once the skim coat is applied, a larger batch of CopyFlex® silicone rubber is prepared and poured to fill the mold box at least 1/4″ above the highest point on the original.
CopyFlex® should be poured in one spot from a height of about 12″ which allows the material to stretch as it falls. We call this a “stretch pour” and it helps eliminate air that was incorporated into the liquid silicone during mixing.
Allow CopyFlex® to slowly creep over the original until it is covered completely.
CopyFlex® cures in about four hours. A quick way to check if CopyFlex® is completely cured is to press a coin’s edge into the surface to see if it leaves an imprint. Cured CopyFlex® will spring right back leaving no imprint whatsoever.
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CopyFlex® Weights and Measures
- 1 pound of CopyFlex® will cover an area about 9 1/2″ x 9 1/2″ x 1/4″ thick.
- 1 pound of CopyFlex® = 12 1/2 fluid oz. = 1 1/2 cups = 3/4 pint
- 1 pound of CopyFlex® = 370 millileters = .37 liters
- 1 pound of CopyFlex® = 22.85 cubic inches
How to Calculate Quantity Needed:
In inches, take the L” x W” x Thickness of the area you will be covering with the CopyFlex®. This will give you the total cubic inches of the CopyFlex® layer that you are going to use to make your mold. Then multiply “total cubic inches” by .70 to find the weight in ounces of CopyFlex® you will need. Divide this number by 16 to calculate pounds of CopyFlex® required.
Example: Let’s say you need to cover an area that is 9 inches wide and you want to apply a layer of CopyFlex® that is 1/4″ thick.
The calculation is as follows: 9″ x 9″ x 1/4″ = 20.25 cubic inches x .70 = 14 ounces in weight.
|Dimensions||1 × 1 × 1 in|