Slow Silicone Catalyst is for use with Durasil and Smartsil Silicones, however it is also compatible with Silastic 3481 and 3483. Add to the silicone base at 10% by weight (you can also use volume to measure the catalyst which is accurate enough) this Catalyst is red in colour to assist with mixing.
Slow Silicone Catalyst gives the following setting times when added at 10%;
Gel Time (Working time) 120 minutes
De-Mould Time 24 hours
Mix Ratio (by weight) 100:10 Base:Catalyst
The following quantities are required;
20kg Base requires 2kg Silicone Catalyst
5kg Base requires 500g Silicone Catalyst
1kg Base requires 100g Silicone Catalyst
This Silicone Catalyst range is available in Fast, Very Fast and Slow setting speeds. Fast is recommended as standard. These catalyst are normally pigmented red to assist in mixing, however the Fast is available clear.
Gel Time (working time)