Polytek #74-55 RTV Liquid Rubber
-Clear - firm - durable excellent for casting plasters, cement, polyesther, wax, and most other materials. 15 minute pour time, demold after 24-48 hours at room temperature. Most resistant to shrinkage as it is nearly pure urethane containing no oils or r
Polytek #74-55 RTV Liquid Rubber
from $75.00
