Fireproof Polysulfide Sealant
Silicone Tech's polysulfide sealant is a kind of new polysulfide sealant of environment friendly, It have two-components,cured in room temperature.
Features:
- Good resistance for alkali and acidic solvent.
- Excellent fireproofing, can’t burned in extreme high temperature.
- Good adhesion to aluminum, glass and steel material.
- Solvent free, don’t pollute environment.
- Can individual use or work together with butyl sealant.
Range of Application:
The polysulfide sealant can used for manufacturing insulating glass in low temperature (polar latitudes area), or any fireproof demand applications.
Properties:
No. |
Item |
Technical Date |
|
1 |
Appearance |
Com A |
White paste |
Com B |
Black paste |
||
2 |
Viscosity(Pa ·S) |
Com A |
350-600 |
Com B |
50-200 |
||
3 |
Pot life (Min) |
≥ 20 |
|
4 |
Tack-free Time (Hours) |
≤ 2 |
|
5 |
Sag (mm) |
≤ 1 |
|
6 |
Adhesive strength (After 7 days) |
≥0.6 |
|
7 |
Fireproofing Class (GB/T 2408) |
Fv-0 |
|
8 |
Oxygen Index (GB/T 2406) % |
≥ 32 |
|
8 |
Hardness after Sulfuration (Shore A) |
5 Hours |
≥ 25 |
24 Hours |
≥ 35 |
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Complied standard GB/T 2406, GB/T 2408, JC/T486 |
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Aboved value be test under condition: 23℃, Relative humidity 50%, ratio Com A:Com B=100:10
Package:
Large Package: Com A 300kg/ barrel, Com B 30kg/barrel
Medium Package: Com A 30kg/ barrel, Com B 3.6kg/barrel
Storage:
Shelf-life: 12 months stored in cool(below 27℃), dry and ventilated places.
NOTES
- Polysulfide sealant can’t mixed with silicone sealant, because the adhesion of mixed sealant not stable.
- The operating temperature should be at least 5℃, because the curing time will be influenced when below 5℃.
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