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Casting Concrete in Polyurethane vs. Silicone Rubber Molds
Here at Polytek, we often recommend the use of liquid polyurethane rubber to make molds for concrete casting.
How to Prepare a Model When Making a Polyurethane Rubber Mold
A model, also called a “master”, should be prepared according to the model material & mold material.
Looking Back: Hanks & Spielberg Receive Cold-Cast Bronze Statues
Looking back through the archives of Developments, a Polytek
printed newsletter covering a variety of mold making and casting topics, we are reminded of decade-old customer projects that deserve to be revisited.
Tek-Tip: Repairing Torn Rubber Molds
If a tear develops in your polyurethane rubber or silicone rubber mold, one of the following options may help to repair it.
Cold Cast Bronze: Three Casting Methods
There are three methods that we typically recommend for creating cold cast bronze pieces: solid casting, slush casting, and bronze dusting.
Tek-Tip: Top 10 Most Common Rubber Mold Making Fails
We’ve compiled a list detailing the most common reasons that rubber mold making projects go wrong.
Slush Casting Resin to Make Hollow Parts
What is Slush Casting?
Architectural Restoration: Making a Rubber Site Mold to Replace a Damaged Column
This commercial building is being updated for reopening.
Body Casting Tutorial: Hydrogel Mold & Cold Cast Bronze Casting
The following tutorial details the steps needed to create a Hydrogel
body mold and a cold cast bronze body casting.
Tek-Tip: Perform Platinum Silicone Test Cures
Out of the entire Polytek
product line-up, platinum-cured silicones (PlatSil
products) are most likely to suffer from cure inhibition during the mold making process.