Thursday / Monday
Make sure to watch the How to Make a 2 Part Mold video
Take this short quiz
Select choice top 3 choices of figure to work with.
Mold Star™ mold rubbers are easy to use platinum silicones which are mixed 1A:1B by volume (no weighing scale necessary). Mold Star™ silicones feature relatively low viscosities and vacuum degassing is not required for most applications. Mold Star™ 30 is a harder material, with a 30A Shore hardness. FeaturesMold Star™ silicones cure to soft, strong rubbers which are tear resistant and exhibit very low long term shrinkage. Molds made with Mold Star™ will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Cured Mold Star™ rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys. Note: Mold Star™ rubbers are not intended for brush-on moldmaking. Note: This product will not cure against surfaces containing sulfur, even when sealed.
MoldStar 30 Watch the one minute video here.
CALCULATE VOLUME OF MOLDSTAR 30 LATEX NEEDED.
Volume of mold
- Volume of positive
= Volume of latex needed
MIX MOLDSTAR 30
SAFETY: Wear safety glasses, long sleeves and rubber gloves.
PREMIX Part A and Part B separately. Containers should be clean. Dispense equal parts of A + B into mixing container (1A:1B by volume), mix thoroughly making sure you scrape the sides and bottom of mixing container several times. Rubber should be a uniform color with no streaks.
POURING: For best results, pour mixture into a single spot at lowest point of containment field. Let rubber seek its own level. A uniform flow will minimize trapped air. Rubber should level off at least ½” over highest point of model (positive).
CURING: MoldstarT20 cures in 30 minutes at room temperature.