Description: Greenpatch 421 is a very popular 3200F high alumina thick patching mortar for high temperature applications. It can be widely used as a patching material, coating material or for bonding brick. It has high strength, can withstand high temperatures and negligible shrinkage.
MADE IN THE USA
NMFC Code: 32280-3
Freight Class: 50
Item Weight: 55.00 lbs
