Two-Part Condensation Cure Catalyst Options Every 2-part RTV Silicone comes with the DBT catalyst standard. You may also select a different catalyst based on your requirements. Following is a list of the available types:
Catalsyt	Form	Application	Mix Ratio by Weight	MSDS
DBT	Liquid	Slow to moderate cure, Long work-life Standard unless otherwise specified	200:1	PDF
STO	Liquid	Fast cure, short work-life	200:1	PDF
RTV9811	Paste	Moderate to fast cure, best choice for deep section cures (>1")	10:1	PDF
RTV9910	Paste	Slow cure, DBT for meter/mix equipment	10:1	PDF
RTV9950	Paste	Moderate cure, DBT for meter/mix equipment	10:1	PDF