Laminating acrylic

[Richer]

Is it possible to laminate sheets of acrylic together? I was given a couple sheets of scratched up acrylic, but they are on the thin side. If I glue them together will that increase the acrylic's strength?

-Rich

[Aquattro]

I'd say no. The two sides will expand and contract at differnt rates than the glue you bond them with and will cause crazing and eventual failure. For the cost of the proper thickness, don't waste your time.

[Richer]

I thought that since acrylic glue causes the acrylic to melt into each other that it would in essence create one sheet of acrylic, but I guess thats not the case. Thanks for the info.

-Rich

[snaggle]

I saw a thing on tv once about how that made a hudge wall tank in some public aquaium out of like 8 peaces and glued them together I dont know if there is special gule they used. but is has been done. cant tell you hoe though.

sorry I cant help more
Brad

[StirCrazy]

Yes you can laminat two sheets togeather. it is hard to get a bubble free joint unless you are carefull. once fused expansion won't be a problem as it is the same material with the same expansion properties

Steve

[Richer]

Thanks for the response Steve!

I'm not worried about bubbles, the stuff is going towards a skimmer anyways. Should I just use weld-on glue to glue the two sheets together? If so, what kind of weld-on? If not, what else should I get?

-Rich

[Dez]

I've done it before... take a baking tray and pour weldon 3 or 4 in it ( a thin layer) then you can put a few toothpicks flat so the acrylic is resting on them in the weld on. Let it soak for about 30 seconds or so, this softens the acrylic, then put em together.

des

[Tarolisol]

I would suggest you go to a plastics shop and ask them what glue to suggest. In the place in calgary they say they never use weld on they use a wierd chemical i cant remember the name, its very liquidy like water and melts the two together in seconds.

[StirCrazy]

Originally Posted by Tarolisol

I would suggest you go to a plastics shop and ask them what glue to suggest. In the place in calgary they say they never use weld on they use a wierd chemical i cant remember the name, its very liquidy like water and melts the two together in seconds.

ya exactly the same thing as weld on 3 but not a brand name.. weldon 4 is the same with a tiny thickening agent.

the only reason they shop doesent use weldon 3 is they buy the raw chemical in bulk for a lot cheaper.

Steve

[IslandReefer]

also called dichloromethane or methylene chloride
by adding thickening agents (acrylic?) Weldon makes its various kinds..