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  1. #1
    Join Date
    Mar 2012
    Posts
    112

    Thinning acrylic solvent?

    Hey, I have some Weld On 16 here, which is the thicker variant. I was wondering, could you actually dilute it with acetone to obtain a thinner glue?

    Dan
    Build logs and other projects of mine: http://nqlasers.com/

  2. #2
    Join Date
    Oct 2011
    Posts
    155
    The pds for Weld On 16 says it can be thinned with Weld On 3 by 10%.

    No, I dunno where to get Weld On 3 from either.....

    Could you just try the acetone and see what happens?

  3. #3
    Join Date
    Mar 2012
    Posts
    112
    Did actually try it, poured out a bit of acetone and dropped in a bit of the #16. Appears to actually work, and does have the capillary action provided you don't add too much. It does take a bit of stirring/shaking to get it to mix, but it does seem to eventually.

    So far the bonds seem pretty strong, but I'll leave it a while to see how it goes.

    This place here seems to have it: IPS WELD ON 3 Acrylic Adhesive 473ML tin.

    Hmm, it does appear it may be causing a bit of stress cracking - not sure if that's from the acetone or what.
    Build logs and other projects of mine: http://nqlasers.com/

  4. #4
    Join Date
    Oct 2011
    Posts
    155
    Well, THAT is embarrasing......

    I have been to Global Acrylics a few times. It is a one-guy operation, with limited stocks of acrylic, and just down the road from me.

    I am a dumbarse.

    I usually buy my acrylic and Weld On 16 from BFS Plastics, which is also just down the road from me and is run by a nice couple of older guys who cut the acrylic to size for me for free.

  5. #5
    Join Date
    Mar 2012
    Posts
    112
    Yeah, there's a local place here I went down to about a week ago, they were nice enough to let me scrounge through their offcuts, pick a few bits, and they cut them small enough to fit in the laser cutter. Asked them about glue and they said they technically aren't allowed to sell it - something about people sniffing it (Of course).

    But yeah, just made a clear box to see if I could get it waterproof, and seems to have worked with the dissolved solvent, no leaks as of yet, just a bit of minor stress cracking.

    Definitely need to work on my application technique though, manage to spread the stuff all over the place. Need a little squeeze bottle instead of a syringe, would probably make it easier.
    Build logs and other projects of mine: http://nqlasers.com/

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