Alumilite’s High Strength 3 silicone mold making rubber is our most flexible silicone mold making rubber and is great for making molds of parts with deep undercuts or negative drafts.
Easy to use and great for one piece mold, reducing seam lines and the need for two piece mold. Splitting the mold is also an option for severe undercuts where releif is required.
The High Strength 3’s flexibility and high tear strength give it the ability to reduce seam lines by making one piece molds rather than multiple piece molds where seam line removal is critical.
The High Strength 3 is a tin base silicone and cures against all different types of clay and substrate. The tin base silicone is a condensation cure and therefore temperature and humidity may affect the cure speed of the rubber.
The High Strength 3 has a low viscosity which does not require degassing (always recommended when available) and will pick up the exact detail of your original.
Use Alumilite’s Rubber to Rubber mold release or petroleum jelly when making 2-piece molds when using the High Strength 3 rubber due to it’s extremely high tear strength.
Mix Ratio: 10:1 by weight (Base:Catalyst)
Work Time: 45 minutes
Demold time: 12 – 18 hours
Based pn relative heat and humidity
Full cure in 48 hours
- Measure and mix catalyst and base
- Pour slowly over your original (spray a coat of release agent before pouring)
- Once cured, flex and demold
Please watch the video above for a quick demo.
For more tutorial visit Alumilite Mold Making and Casting Tutorial
For complete instructions visit www.alumilite.com
Made in USA.
Prior to use, read all Technical Data Sheets/Instructions and Safety Data Sheets.
More craft materials available online and at our craft shop at Craftiviti Sdn. Bhd. (Petaling Jaya, Malaysia).