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Old 06-12-2014, 09:29   #1
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Best Epoxy for 35-40F

In Chicago my boat is on the hard till she's scheduled to re splash around April 15 th. With bulkhead glass work to do and that elusive 40F minimum substrate and product temperature recommendations for West Systems, I might be waiting to June.

Are there better cold temp epoxies that I should be looking at?

Using West's 205 hardener, their chart and ads say, down to 40F.
Can I really get an excellent cure and bond at this temp?


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Old 06-12-2014, 12:35   #2
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Re: Best Epoxy for 35-40F

Epoxy by its nature requires heat to fully cure. Part is created during the exoteric chemical reaction, but a good bit is from the ambient temprature. West is recommended down to 40F, and if you were working in a controlled environment at 40F you could get away with it, but that gives almost no margin of error.

Instead try tenting the area with cheap tarps, and adding an electric space heater. It should warm up the tented area 10-15 degrees, and give you a warm enough environment to work safely.
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Old 07-12-2014, 11:21   #3
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Re: Best Epoxy for 35-40F

http://www.menards.com/main/heating-...air/c-6862.htm




Use propane or kero. Diesel heaters put out greasy soot.
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Old 17-12-2014, 14:59   #4
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Re: Best Epoxy for 35-40F

No, you need that heat, just use a heat lamp, away from the work, probably not stronger than 125watts.
If you use anything stronger, watch it carefully till cured, no longer sticky to the touch.


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Old 17-12-2014, 15:01   #5
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Re: Best Epoxy for 35-40F

Geeze, kero or propane, seriously? An electric heater is fine.
If your not skinning plywood.


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Old 17-12-2014, 15:05   #6
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Re: Best Epoxy for 35-40F

If your having issues with those cold chilly winds on the exterior of the hull, support some 1/2 insulation or anything some what insulative, to shield the cold from the exterior, till cured.


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