We love casting our silicone rubber molds -- here's why
The rubber we use is an industrial-strength silicone manufactured in North America to meet Free Trade Agreements.
This silicone rubber does not take on any scents, perfumes, or any oils you may use in your exclusive soap formula. You can cast more than one kind of soap bar using your same silicone production mold. As well, you may use the same silicone mold to manufacture wax products, bath fizzles, even hard lotion bars, and pumice bars. In these cases, your formula would start as a liquid slurry that would solidify to a harden state.
Our silicone may used for both hot and cold soap making processes. The silicone can withstand temperatures up to 350° F and the silicone molds may be placed in a refrigerating unit or for a short-time freezer.
The silicone molds are flexible but do not stretch out of shape over time. The silicone has memory to return to its original shape each time. The silicone molds do not have a shelf-life, meaning you will not need to replace your molds over a long period of time or use. Yo
At Masterline Molds we do not make the vacuum-formed sheet plastic soap molds for reasons many of you have found that do not work. We now endeavor to produce a high-quality product soap mold which will last you for many years.
At Masterline Molds we do not make polyurethane RTV rubber molds as the polyurethane rubber will stick tenaciously to anything that has not been properly sprayed with release.
At Masterline we create cavity molds that produce twelve soap bars in a single casting. Cavity molds give you control over the exact weight of the soap bar each time. Cavity molds give you uniform consistency reproducing your name and logo each time.
We suggest placing your silicone on a separate thick board, making sure it is level by using a level. Fill each mold cavity starting in a corner and continue filling until all twelve cavities are filled. Once the mold is filled you now have to work on other aspects of the business like marketing and sales.
To de-mold, we suggest placing a thick board over top of the mold and flipping the bottom board and top board together. Once the mold is upside down, simply lift the mold, separating each soap bar as it releases from the mold and leaving them on the tray.
Working with silicone molds is easy. There is no ON or OFF switch, they are always ready to work, they don't complain -- not even about the weather. They do their work very well. All they ask is for a little TLC which is on the next link.