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YAMADUR R-22 |
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Base |
Formulated polyisocyanate. |
|
Application |
As hardener with PU/Synthetic rubber based Adhesive. Can
also be used as bonding agent for rubber- metal bonding.
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|
Viscosity |
35-45
cps at 30 degree centigrade |
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NCO Content |
8.5 - 10.5% |
|
Solvent |
Chlorohydrocarbon |
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Method of Application |
The adhesive either of natural, synthetic rubber or polyurethane
is to be mixed with the cross linking agent Yamadur R-22.
The percentage of cross linking agent to adhesive can
vary from 3 to 7% depending on the end use. Generally
5% is recommended. The adhesive mixed with the cross linking
agent is to be brushed on the roughened surfaces of both
the substrates to be joined. In case of bonding of PVC,
the surface is to be wiped with methyl ethyl ketone. The
adhesive-coated surface is to be kept open for solvent
evaporation and then bonded as per recommended process.
For bonding metal with compound rubber, the metal surface
is to be sand blasted or acid etched followed by degreasing
with trichloroethylene. Thin and uniform layer of Yamadur
R-22 is to be brushed on the clear and dry metal surface.
Allow to dry for 20-30 minutes. Lay the compounded unvulcanized
rubber on the coated metal and vulcanize the rubber
in mould under heat and pressure as required.
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| Caution
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Highly
inflammable. Replace lid immediately after partial use.
Store in a cool and dry place. |
| Packing
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600
gms, 300 gms |
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