RTV-2 GI-1220 - SOLIAO

About
GI-1220 is a high tear strength, tin-catalyzed RTV-2 silicone rubber, which was designed for casting polyester parts. GI-1220 is especially good for molds with deep undercuts and for molds that require flexing for part removal. GI-1220 is not sensitive to inhibition, meaning it will cure at room temperature over virtually any surface. It is easy to mix and de-air, and will cure with only a slight degree of shrinkage. The speed at which the rubber hardens can beaccelerated with special activators. Condensation cure two-component silicone rubbers are excellent for most general mold making and prototype applications. They are excellent for casting waxes, gypsum, epoxies and other plastics. GI-1220 is extremely useful for those applications where superior elongation and medium durometer are required.&&

About

GI-1220 is a high tear strength, tin-catalyzed RTV-2 silicone rubber, which was designed for casting polyester parts. GI-1220 is especially good for molds with deep undercuts and for molds that require flexing for part removal. GI-1220 is not sensitive to inhibition, meaning it will cure at room temperature over virtually any surface. It is easy to mix and de-air, and will cure with only a slight degree of shrinkage. The speed at which the rubber hardens can beaccelerated with special activators. Condensation cure two-component silicone rubbers are excellent for most general mold making and prototype applications. They are excellent for casting waxes, gypsum, epoxies and other plastics. GI-1220 is extremely useful for those applications where superior elongation and medium durometer are required.&&

Product Description
Generic	硅橡胶,RTV-2
Material Status	Commercial: Active
Features	Low contractility,Good tear strength
Availabilitys	North America

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	1.08	g/cm³
Shrinkage rate
Cured	0.10	%

Thermosetting mixed viscosity	Nominal value	Unit	Test method

Uncured Properties	Nominal value	Unit
colour
—	Blue
—	White
viscosity
—	0.30 to 0.40	Pa·s
—	30 to 40	Pa·s
Curing time	16 to 18	hr
storage stability	90 to 150	min

Cured Properties	Nominal value	Unit	Test method
Shore hardness
Shaw’s A	11 to 19
Shaw’s A	16 to 24
tensile strength	2.52 to 2.86	MPa	ASTM D412
Tensile strain
fracture	450 to 500	%	ASTM D412
tear strength	14.9 to 18.4	kN/m	ASTM D624
Coverage（Cured）	0.925	cm³/g

THERMAL	Nominal value	Unit
Operating temperature
Cured	-51 to 171	℃
Thermosetting components
resin	按容量计算的混合比: 100 按重量计算的混合比: 10
Hardening method	按容量计算的混合比: 11 按重量计算的混合比: 1.0
Storage period	26	wk

Notes
1. Typical properties: these are not to be construed as specifications.
2. Mixed
3. Activator
4. Base
5. 1 Day
6. 7 Days
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