Smartsil Hard Silicone Catalyst is for use with Smartsil Base. Smartsil is our budget silicone developed to give the maximum economy, while still providing good quality reproduction and low shrinkage. Particularly suited to plaster casting. Smartsil thickens well for brush-on applications, using Silastic Thixo Additive.
Smartsil Hard is slightly harder and tougher than the standard Smartsil and being harder is obviously more stable and less likely to distort and flex when casting.
Smartsil Hard Silicone Catalyst is a red pigmented catalyst that is added at 5% to the base silicone.
1kg Smartsil Hard Silicone Catalyst for 20kg Smartsil Base
250g Smartsil Hard Silicone Catalyst for 5kg Smartsil Base
Mix Ratio: 100:5
Working Time: 30-45 minutes
Curing Time: 6 hours
Hardness (Shore A): 23
Tear Strength, kN/m: 24
Tensile Strength (MPa): 4.6