Excellent for external shapes. Simply spread over master pushing down with fingers and wait for cure 8-10 minutes. You have 3 or 4 minutes of manipulation time - Therefore 14 minutes start to finish. You can also cast internal shapes and cavities but some pressure should be applied such as a weighted object on top.
Features
Exotic Metrology-Grade Rubber - Self-Curing in Minutes
Virtually Perfect Replica Casting of Internal and External Forms
Non-Toxic - Easy To Use - 100 Times Faster Than RTV Silicones
No Release Agent is Ever Needed.
Excellent For Checking Parts With Optical Comparators!