Author Topic: Smooth on ratios  (Read 1065 times)

Offline green valley gobbler

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Re: Smooth on ratios
« Reply #40 on: March 06, 2019, 07:15:23 AM »
Just wondering if any one has any updates on smooth on ratios? Anyone using the 2 to 1 ratio and feel it provides a better bond?

Online Roy from Pa

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Re: Smooth on ratios
« Reply #41 on: March 06, 2019, 07:30:55 AM »
Mix ratio is 1:1 by volume. When mixed 2A:1B by volume, EA-40® will achieve greater heat resistance and improved physical properties..

I've used the 1 to 1 for years and never had any problems.

The 2 to 1 is just to improve heat resistance and strength.

Either one works fine.

Online skeaterbait

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Re: Smooth on ratios
« Reply #42 on: March 06, 2019, 08:38:09 AM »
2:1 will attain a higher heat distortion but realistically how many bows are going to get over 163° (after the build) let alone make it to 217°. And on top of that, how many home built easy bake ovens will reach a cook temp of 250°?


There is no shortcut for experience.

Online Flem

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Re: Smooth on ratios
« Reply #43 on: March 06, 2019, 10:08:53 AM »
I use EA-40 as a gel coat, 2-1. In theory it should be harder at that ratio. Cant prove it, though.

Online kennym

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Re: Smooth on ratios
« Reply #44 on: March 06, 2019, 05:10:03 PM »
2:1 will attain a higher heat distortion but realistically how many bows are going to get over 163° (after the build) let alone make it to 217°. And on top of that, how many home built easy bake ovens will reach a cook temp of 250°?



You can if you cover the thermostat with foil.... Don't even ask!!

Online Roy from Pa

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Re: Smooth on ratios
« Reply #45 on: March 06, 2019, 05:13:41 PM »
OMG, I gotta ask.

Come on dude, what happened then?

LOL

Did something smoke?

 :campfire: :campfire: :campfire: :campfire: :campfire: :campfire:

Online kennym

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Re: Smooth on ratios
« Reply #46 on: March 06, 2019, 05:35:31 PM »
Hot nuff the glass turned white .... junk bow

I don’t even know why we did that either but never again!! Long time ago ...

Before internet when you hadda try something cause you couldn’t google it...
Stay sharp, Kenny.

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Offline Crittergetter

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Re: Smooth on ratios
« Reply #47 on: March 06, 2019, 09:09:10 PM »
Hey guys, I did a couple of bows last summer and tested the peel resistance. It did seem to have a better bond than 1-1. I also noticed that for me it seems that uls bonds better than ul. Not sure why but it does seem to bond slightly better.  :dunno:
Anyways, I have adopted this as standard procedure simply because of the increased peel and heat resistance. I’ve done approximately 20 Bows this way and have no complaints, although I didn’t have any complaints before either.
A little more glue is worth a little more piece of mind I guess. Lol
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