Welding acrylic sheets?

Dec 11, 2005 9 Replies

Hello. I am looking for information regarding Joining/Welding acrylic sheets. Most importantly, I would like to stay within the realm of "FDA Approved" as the construction in question here will be touching food.



Does anybody have experience with this matter? Thanks in advance for any information. Cheers!



Call "Jack" at Ultimate aquatics. He is a friend of mine who makes custom acrylic fishtanks for a living. He will be able to help- He uses a chemical bond that melts or chemically alters the plastic to an almost bullet-proof seam. I mean I have personally seen 1000 gal salt water fishtanks made from this stuff with no issues.

Ultimate Aquatics: Co- Jack Jones 1.815.922.1023 Tell him I sent you his way.

If he can't answer it, there is no answer.

Rob

In addition to RDF's friend, these people probably know more about joining acrylic than most:

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(top posted for your convenience) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Keep the whole world singing . . . . DanG (remove the sevens) snipped-for-privacy@7cox.net

On 19 Dec 2005 10:45:34 -0800, "Bendit" wrote as underneath my scribble :

I think from memory Chloroform is the solvent and will wick perfectly into well fitting polished joints I have never tried it on sheets bigger than a couple of ft. length. Charlie+

Actually what you want is lab grade Ethylene Dichloride. I built many an acrylic box with the stuff. We used hypodermic needles to deliver it right into the seam.

I made some replacement box lenses for bollards with that stuff. Very easy with the syringe and pretty strong, too.

Is "lab grade Ethylene Dichloride" food grade stuff (FDA Approved) ? Or is it toxic? Thanks.

It evaporates almost instantly. There is nothing left to poison anybody.

Ernie Leimkuhler wrote in news:ernie- snipped-for-privacy@news1.west.earthlink.net:

MSDS, see Section 3: Hazard Identification

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I've used it a lot, but it is definately dangerous for both fire and health. The first thing is to use it in really well ventilated rooms. The second make sure there no sources of ignition anywhere near it. That high evaporation rate doesn't make it go away, just easier to get into your lungs, and closer to things that will ignite it.

In small quantities and with precautions, it can't be beat.

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