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Face fixing foam.
Looking for some advice. Ive been given the job of face fixing alot of 3mm foamex to the side of a building, which has been plyed to fill in a large gap where a window was meant to be. The sheets are going to be full 8x4ft sizes.
Basically i went down to the job to do a trial run….i kinda knew before hand that just screwing on a sheet of foamex would not be a good idea because of the warping issue when the sun hits it, so i used plenty of gripfill (testing on a small area of the plastic to make sure it didnt melt) and then screwed it on.
24hours later. The sun hit it…it was surf central…waves and bulges everywhere. I would have thought gripfill would have stuck it without any problems?. Could this be because the air is so damp at the moment? The ply behind was dry as a bone.
Any ideas? or alternative methods of fixing up these pannels.
Many thanks.
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7 Replies
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3mm foamex? There’s part of your problem. What colour is it?
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Anything other than white is going to absorb extra heat and buckle.
Full sheets even in white are going to expand by possibly 5-10mm in direct sun, even in 5mm. 3mm is a waste of effort.
What about using site hoarding ally laminate panels, as they are cheaper than normal and only painted one side.
Essentially it looks like the customer wants a cheap job and you are now getting the aggro for trying to do it on the cheap. -
quote :What about using site hoarding ally laminate panelssorry hijack
these boards are they ok for putting prints on, and roughly how much please
chris
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If you’ve already got the 3mm panels for the job then try EvoStik Impact Adhesive or similar. The only chance you’ve got is to glue both surfaces as even as possible – follow the instructions to the letter. 3mm foamex not good for long term job. Better to use cheap aluminium composite panels @ about £35 for 8’x4′ – matt white on the front, grey on the back.
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the customer wants it done on the cheap. The design is to have one color half way up and then a change to another. 40 sheets of it to be exact. Then cut vinyl text over the top of that. Unfortunately the plastic is already purchased.
I have used evostik before but never on a large scale. And of course enough to cover that surface area is going to be expensive.
The 2 terms Quality and Cheap dont really go hand in hand but i have no choice on this occasson.
Im wondering if maybe the fact it rained quite hard around 5 hours after i fitted the test sheet….that the gripfill didnt set properly.
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The only way to stop it warping is to flood coat the whole surface with evostick. There is a special one available for foam pvc. Any gaps behind is asking for trouble.
If your customer wants a cheap job just gripfill it and let him worry about how cr@p it looks afterwards. You can’t buy Champagne at beer prices.
🙄Penny wise, pound foolish. (?)
If your a cowboy just do it, if you have any integrity WALK AWAY! It’s customers like this the industry really does not need.
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Chris, as Andy says.
I have never actually used them but the front face appears to be no different from the stuff painted both sides.
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