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YAMADUR H-20 |
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Base |
Formulated
polyisocyanate |
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Application |
- As
hardener with PU Based/natural or synthetic rubber
based adhesive.
- As
bonding agent for rubber metal bonding
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Viscosity |
20 – 25 cps at 30 degree Centigrade |
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NCO Content |
13 – 15 % |
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Solvent |
Chlorohydrocarbon |
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Method of Application |
The adhesive either of natural, synthetic rubber or polyurethane
base, is to be mixed with the hardener Yamadur H-20. The
percentage of cross linking agent to adhesive can vary
from 3 to 7% depending on the end use. The mixed adhesive
is to be brushed on the roughened surfaces to be bonded.
Allow to stay for 8 – 10 minutes and then bond while tack
remains for rubber based adhesive and to be bonded after
heat activation by "stuck
on process" in case PU based adhesive. The Pot
life of the adhesive mix is limited and depends on the
type of the adhesive used.
For bonding metal with compounded rubber, the metal
surface is to be sand blasted or acid etched followed
by degreasing with trichloroethylene. Thin and uniform
layer of Yamadur H-20 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, 100 gms |
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