Structural Silicone Sealant

Description
sts5901 two-component structural silicone sealant is a two component, neutral curing silicone sealant with medium to high modulus, purposely designed for use in the fabrication and shop glazing of unitized curtain wall modules.
Characteristics
a.sts5901 belongs to rtv-2.
b. Structural capability glazing 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°c73°f, 50% rh) 30minutes
tack free time(23°c73°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