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Help CenterAddition Cure Rtv-2 Liquid Silicone Rubber for Concrete & Stone Moulds
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Addition Cure rtv-2 Liquid Silicone Rubber for Concrete & Stone moulds
Artificial Stone & Concrete Casting Silicone Rubber
Features:
Amazing fluidity and easy to operate
Platinum-based, food-grade silicone (environmental friendly, odorless -and non-toxic)
Delicate design available
Mixing ration: 1:1, easy to mix
Easy de-molding
Excellent tension and tear strength
High performance in duplication
Shrinkage is almost zero (below 0.1)
Excellent resistance to weather, temperature, aging, acid and aging-proofing.
High resistance to high temperature and aging(resist -60℃ to 250℃)
Guochuang Silicone Company is professional medical grade silicone rubber, food grade silicone rubber, shoe sole molding silicone manufacturer and factory. We supply and export artificial stone silicone rubber, plaster molding silicone, prototyping silicone with best quality.
Appearance:
Part A:a non-toxic and odorless liquid with translucent color and platinum inside.
Part B: a non-toxic and odorless liquid with translucent color.
ATT: We can do any curing time as your requirements.
Technical Data
Characteristics of the non cured product
Properties |
G-820 |
G-825 |
G-830 |
G-835 |
G-840 |
||||||
A |
B |
A |
B |
A |
B |
A |
B |
A |
B |
||
Appearance |
low viscous liquid |
||||||||||
Colour |
translucent |
||||||||||
Density [g/cm 3 ] at 23 °C, approx |
1.10 |
1.10 |
1.10 |
1.10 |
1.10 |
||||||
Viscosity [mPa·s] at 23 °C, approx |
5000±1000 |
6000±1000 |
7000±1000 |
8000±1000 |
9000±1000 |
||||||
Polymerisation
Curing conditions: 1h at 80 °C
Properties |
G-820 |
G-825 |
G-830 |
G-835 |
G-840 |
Hardness Shore A |
20±2 |
25±2 |
30±2 |
35±2 |
40±2 |
Tensile strength [N/mm 2 ] |
45±10 |
50±10 |
55±10 |
55±10 |
60±10 |
Elongation [%] |
500±50 |
500±50 |
450±50 |
450±50 |
450±50 |
Tear strength [N/mm] |
22±2 |
24±2 |
26±2 |
24±2 |
12±2 |
Application:
GC RTV silicone G-8 series are great for artificial stone casting. They are widely used for architectural elements, block-outs & hole former, concrete counter tops, flexible form liners, GFRC, manufactured stone veneer, ornamental precast & statuary, stamped & textured concrete, etc.
Operation Method:
Both pouring and brushing operation methods for our artificial stone casting silicone are available. You can choose the best one as your preference, we can provide thixotropic agent for brushing.
Notice
What is the hardness should I choose?
Normally 20~40 Shore A will be the best, but it also should according to your size and pattern design.
Warm Tips:
The surfaces with which the material comes in contact must be perfectly clean, free of grease and dry.
Close the bottles after use so as not to confuse the cap of the catalyst with that of the base when re-sealing.
Be aware of possible cross-contamination; it's highly recommended to use only dedicated gear when processing poly-addition RTV2 silicone rubber (including degassing devices).
Be aware that contact with certain material can inhibit the curing of the RTV2 poly-addition silicone rubber. Common contaminants to be avoided include:
-Natural or synthetic rubber, vulcanized with sulphur derivatives.
-Poly-condensation RTV catalyzed with metallic salts.
-PVC stabilizing agents.
-Amine cured epoxies.
-Sulphur, tin and amines derivatives.
-In case of doubt, carry out a small test by pouring the mixture onto a small area of the object.
Package
Part A:1kg/drum; 20kg/drum;25kg/drum;200kg/drum.
Part B:1kg/drum; 20kg/drum;25kg/drum;200kg/drum.
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