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| Polyurethane general purpose Sealant |
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| Type/Item
No.: |
JS-312 |
| Introduction
Of Product: |
1.Description： Js-312 is one part, Polyurethane silicone sealant under room temperature , the sealant have tenacious adhesion, excellent flexibility , resistance of aging,tremor fatigue and low temperature, Application of various coating on its surface is available . Easy to use.
2.Use: Designed for jointing and caulking such as automobile.train, refrigerator car,ship,pipe and construction etc.
3.Character:
Skins quickly
Tenacious adhesion
Neutral
Excellent resistance of chemical corrosion
waterproof
bepaintable
one part
excellent weatherability and anti-aging
resistance of tremor fatigue and impact fatigue
resistance of moisture
non sag
non mildew
4. Features
Appearance:black,grey,white, hyacinth cream
Durometer Hardness(Shore A): 45-50 GB/T 531-92
Sag: non
non-volatility: ≥96%
Tooling time:9 min GB/T 13477
Curing time:7-14d
Tensile Strength: ≥0.5 mpa GB/T13477
Elongation: ≥500%
Shear Strength: ≥1.6 mpa
Tear Strength: 7.0N/mm
5.Packing: 300ml to aluminium cartridges, 400ml and 600ml
6.Storage: Store in a shady and cool area , keep temperature within 5-25ºc, 9 month
7. Technical service: complete supporting by company
8. Perfomance:
a.Clean surface by steel brush and detergent any deposit of dust, dirt and grease. All adhesive must be removed in proper way.
b.pre-coating
Usually precoating is not applicable for Js-312, however, for best performance you can choose precoating materials. When precoating is applied, its surface should be smooth, any dollop or asymmetry are not allowed.
c.Mixing is not applicable for this products
d.Spread Js-312 sealant on the surface of base material with quite pressure , and make the thickness of sealant not less than 1mm.
9. notice:
If used in an underwater surface, it is necessary to cure fully before entering water. Bepainting is available, but recommend not to use color enamel , and do testing in site to ensure its compatibility.
Application of wet coating technic is not allowed, don’t use solvent, water, detergent or soap solution.
Prohibit using beyond range of 5-35
10.Bepainting:
After Js-312 cures fully, it can be bepainted by traditional way, including epoxy resin and crylic acid coating. The high solvent ingredient such as enamel or high oil in coating will make sealant reactive, leads to soft surface.
To achieve best performance and appearance, the tensile strength of coating must match Js-312. To the thickness less than 3mm, bepaint after 24 hours, to the thickness above 3mm, bepaint after 48 hours.
11. fireproofing: Js-312 is not inflammable.
12. First aid measure
Don’t contact eyes and skin.
Please see a doctor immediately in case of poisoning.
In case of skin contact , take off infectant clothing and wash contaminanted skin for at least 15 minutes, or see a doctor.
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| Packing
Mode: |
barrel |
| Unit: |
pc |
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