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The Newbies Arena Are you new to knife making? Here is all the help you will need.

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  #1  
Old 09-20-2014, 08:49 AM
Kevster Kevster is offline
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West systems epoxy?

I see that west system offers 3 different hardeners. A 205,206, and 207 which one should I order?

Thanks
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  #2  
Old 09-20-2014, 09:52 AM
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BCROB BCROB is offline
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Ive been tempted try myself and I was told 205 but I dont know for certain, the difference in cost over other proven epoxies is a tough pill to swallow


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Old 09-20-2014, 10:38 AM
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Ray Rogers Ray Rogers is offline
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I don't use West Systems myself but I can do an internet search (and so can you). The West Systems website says 205 is for marine applications - waterproof, won't break down in sunlight, etc which is exactly what we want for knives. 205 has good pot life and cures in a few hours.

206 is the fast cure hardener. Cures faster, shorter pot life, good stuff but not as good a result for us as 205 would be.

207 is intended for curing coatings for fiberglass cloth, not for us at all.

So, like Rob said, its 205 all the way ....


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Old 09-20-2014, 10:54 AM
Kevster Kevster is offline
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Quote:
Originally Posted by Ray Rogers View Post
I don't use West Systems myself but I can do an internet search (and so can you). The West Systems website says 205 is for marine applications - waterproof, won't break down in sunlight, etc which is exactly what we want for knives. 205 has good pot life and cures in a few hours.

206 is the fast cure hardener. Cures faster, shorter pot life, good stuff but not as good a result for us as 205 would be.

207 is intended for curing coatings for fiberglass cloth, not for us at all.

So, like Rob said, its 205 all the way ....
thank you sir, I tried a search and didn't really find the answer I was looking for.
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Old 09-20-2014, 08:07 PM
pcpc201 pcpc201 is offline
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I've been using the 205 for over a year now and am very pleased with it.
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Old 09-20-2014, 10:27 PM
PoolQs PoolQs is offline
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I have been using 105 and 206 for the last couple of months. Absolutely NO issues !!
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Old 09-21-2014, 09:03 AM
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Ray Rogers Ray Rogers is offline
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Troy,

There wouldn't be any obvious issues right away with 206. But, according to the West Systems website, 206 sets up faster but not as strong as the slower 205. That's the reason they make more than one hardener but each hardener has trade offs. Where knives are concerned you might never notice any difference just because the glue is a little weaker since we don't use the glue to actually hold the knife together. Still, unless you're in a terrible hurry the 205 would be a better choice .......


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Old 09-21-2014, 06:46 PM
PoolQs PoolQs is offline
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Ray, the 206 IS the slow hardener and the 205 is the FAST. Just thought I would clarify.

http://www.westsystem.com/ss/205-fast-hardener
http://www.westsystem.com/ss/hardener-selection-guide/

Troy
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