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Boat Forum / Building / September 2004



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Keep epoxy from sticking

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Chris - 15 Sep 2004 17:45 GMT
Hello:

What is a good way to keep epoxy from sticking to 316 ss? The short
version is that I am using stainless steel window trim rings as a
form/screed to building up
roughed in window opening. I want to remove the trim rings after using
it as a form to build up area with epoxy. Pam... grease... olive
oil... wax...?

Suggestion?

Chris
Meindert Sprang - 15 Sep 2004 18:30 GMT
> Hello:
>
[quoted text clipped - 4 lines]
> it as a form to build up area with epoxy. Pam... grease... olive
> oil... wax...?

Oil.

Meindert
Lew Hodgett - 15 Sep 2004 18:43 GMT
> What is a good way to keep epoxy from sticking to 316 ss?
<snip>

Clear packing tape.

The stuff you use in a tape gun to seal packing boxes.

I buy 24 rolls at a pop for just this use.

Don't leave home without.

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S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
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Meindert Sprang - 15 Sep 2004 19:01 GMT
> > What is a good way to keep epoxy from sticking to 316 ss?
> <snip>
>
> Clear packing tape.

That works too. But I suspect that the SS rings the OP talks about, are a
bit tricky to seal with packing tape and still keep a smooth surface.

Meindert
Evan Gatehouse - 16 Sep 2004 05:48 GMT
> > What is a good way to keep epoxy from sticking to 316 ss?
> <snip>
>
> Clear packing tape.

I've used brown Mylar packing tape for just this sort of application.  The
hatch frame was a very tight fit but released perfectly.  It's so thin that
you can easily make a  nice smooth contour.

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Evan Gatehouse

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William R. Watt - 16 Sep 2004 00:08 GMT
I'd use cellophane tape (eg 3M Scotch tape) applied in small pieces at
right angles to the curve of the ring to avoid wrinkles. But then if the
ring is going to later cover the cured epoxy then wrinkles may not matter.

Cellophane tape is an effective parting agent for epoxy.

> Hello:
>
[quoted text clipped - 8 lines]
>
> Chris

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Jim Conlin - 16 Sep 2004 02:46 GMT
Several coats of paste wax.  I use Partall #2.  If you're a belt&suspenders
person, top with a spray of PVA.  If it still sticks, applying heat to teh
metal part will free it.

> Hello:
>
[quoted text clipped - 8 lines]
>
> Chris
Reynaud - 23 Sep 2004 03:06 GMT
> Hello:
>
[quoted text clipped - 8 lines]
>
> Chris

Hi Chris. Masking tape works as well as anything else.It is removed easily,
and is cheap.

Rey
 
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