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Technical Datasheet · GI-386

Fast-cure tin-cure RTV-2 silicone base for T.O. catalyst

Tin cure (condensation)

Key properties

Mixed viscosity10,000–12,000cps

Log scale. Lower viscosity pours thinner and captures finer detail; higher viscosity holds on vertical surfaces.

Mix ratio (wt)100:varies
Tear resistance20ppi

General Information

GI-386 is a variation of GI-311. GI-386 only requires the addition of T.O. tin catalyst to achieve a rapid cure.

The information contained in this data sheet is, to our best knowledge, true and accurate, but all recommendations or suggestions are made without guarantee. Since the conditions of use are beyond our control, Silicones, Inc. disclaims any liability incurred in connection with the use of our products and information contained herein.

Typical Properties

Uncatalyzed Compound

Color
Base:BuffActivator:Amber
Viscosity
Base:10,000–12,000cpsActivator:n.a.cps
Mixing Ratio
By weight:100:variesBy volume:n.a.
Mixed Viscosity
10,000–12,000cps
Working Time
n.a.
Cure Time
n.a.hours
Shelf Life
6months

Vulcanized (Cured) Properties

Measured at 7 days, 70°F / 50% relative humidity

Shore A Hardness
One day:n.a.7 days:n.a.
±4 durometer
Tear Resistance
20 ± 5ppiASTM D624
Tensile Strength
325 ± 25psiASTM D412
Elongation
150 ± 15%ASTM D412
Service Temperature
-60 to 425°F
Shrinkage
0.20%
Specific Gravity
1.14
Coverage
24.3in³ / lb
Catalyst
T.O. tin catalyst
Volume resistivity
1 x 10^13 ohms/cm
Dielectric strength
575 volts/mil
Dissipation factor (@ 100 Hz)
0.010
Dielectric constant (@ 100 Hz)
3.0
Demold time (400:1 / 200:1 / 100:1)
2 hours / 20 min / 10 min
Shore A after 2 hours (400:1 / 200:1 / 100:1)
5 / 40 / 40
Shore A after 4 hours (400:1 / 200:1 / 100:1)
30 / 48 / 48
Working time (base:T.O. 400:1 / 200:1 / 100:1)
35 min / 10 min / 3 min

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