Combine Fast and Slow Hardener? - SailNet Community

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  #1  
Old 10-19-2008
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Combine Fast and Slow Hardener?

I am using West System Epoxy and wondering something. Can I combine Fast and Slow hardeners. I used the Fast once and it was really fast compared to the slow. If mixing a batch of 2 pumps could I do 2 pumps of resin, 1 of fast and 1 of slow? It seems this should be fine when I want to speed up the hardening of the slow?

It seems like it should work since the ratios are the same.
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Old 10-20-2008
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Also sent query to West and got response below.

Yes, you have the right idea. Stir the combination together very thoroughly so the whole pot cures at the same rate. I personally pump one resin and then one hardener, one resin and one different hardener. When I have just finished a hardener stroke I know I am even. On small batches it is usually not a problem, larger batches gives more time to lose concentration.
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Old 10-20-2008
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As long as the ratio's are right you'll be fine.
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