DESCRIPTION

STS5901 Two-Component Structural Silicone Sealantisa two component, neutral curing silicone sealant withmedium tohigh modulus, purposely designed foruse in the fabrication and shop glazing of unitized curtain wall modules.

CHARACTERISTICS

A.STS5901 belongs to RTV-2.

B.Structural capabilityglazing in curtain wall

C. Medium to high modulus

D.Fast curing speed, successfully tested for use in protective glazing applications

E. Odorless, non-corrosive cure system.

F.Excellent resistance to weather, UV, ozone, water;

G. Excellent flexible over a temperature range of-58°F(-50°C) to302°F(150°C);

H.Good compatibility with other neutral silicone sealants.

APPLICATIONS

Silicone structural glazing in curtain wall .

Structural attachment of many panel systems.

Protective glazing applications.

Panel stiffener applications.

TYPICAL PROPERTIES

Property	Result	Test method
Bases: as supplied
Color	White
Specific Gravity	1.48
Curing agent: as supplied
Color	Black
Specific Gravity	1.01
As mixed
Color	Black
Specific Gravity	1.42
Tooling Time(23°C/73°F, 50% RH)	30minutes
Tack free time(23°C/73°F, 50% RH)	55-90 minutes	ASTM C679
Flow, Sag or Slump	0.1 inches max	ASTM D2202
As cured - after 7 days at23°C(73°F) and 50% RH
Durometer Hardness, Shore A	30-60	ASTM D2240
Ultimate Tensile Strength	1.2MPa	ASTM C1135