Comparing Silicone Ablative Products

	DOWSIL™ 93-104 Ablative	DOWSIL™ 3-6077 RTV Silicone Ablative	DOWSIL™ LPA-4000 Sprayable RTV Ablative
One- or two-part	Two-part	Two-part	One-part
Cure	Room temperature or heat	Room temperature	Room temperature
Working time	5 hours	2-3 hours	5-45 minutes
Cure time at room temperature	≤ 24 hours	≤ 24 hours	≤ 24 hours
Flame or flux resistance	Vigorous protection — forms an intumescent, protective coating having a durable surface char	Robust protection — forms an intumescent, protective coating having a durable surface char	Durable protection — offers sacrificial ablative behavior
Application method	Trowel, casted and molded	Trowel	Spray, brush, roll, trowel
Surface orientation for application	Horizontal surfaces	Horizontal and vertical surfaces	Horizontal and vertical surfaces
Protection	Launch structures exposed to direct flame	Launch structures exposed to direct or indirect flame	Launch structures exposed to direct or indirect flame
Potential applications	Heat shield for external surfaces from atmospheric friction at hyper-sonic speeds	Heat shielding for space vehicles and military armaments	Flame protection for launch infrastructure including gantry, strongback, launch table and flame exhaust trench
Unique feature	Moldable to custom parts and shapes	Non-slumping	Non-slumping; Unique composition enables one-time application to desired thickness
*DOWSIL™ 93-104 Ablative and DOWSIL™ 3-6077 RTV Silicone Ablatives are International Traffic in Arms regulated

Silicone Ablative Product Comparison