| Electronics > Projects, Designs, and Technical Stuff |
| Ideas and advice for sticking tiles to plastic |
| (1/2) > >> |
| akis:
What you see on the photo is a ceramic tile, poled on one side with a blob of solder in the centre a ceramic tile, the other side a rectangular piece of 0.5mm polystyrene a similar piece of polystyrene, cut with indentations and 9 of these tiles glued on ***************** The polystyrene is there to hold the ceramic tiles together We have cut indentations to allow some movement and flex We solder leads on the solder blobs sticking out through the holes cut into the polystyrene The ceramic tiles are glued on with epoxy glue. The glue serves to (a) glue the tile on and (b) insulate the poled side ******************** This works beautifully, except, and the reason for this post: Regular flexing and/or vibrations unstick the tiles creating tiny gaps between ceramic tile and polystyrene. Liquid then sips into the gap and there are shortages. The idea is to minimise the shortages. I have tried other plastic materials, polypropylene, PetG, PVC - nothing sticks really well and the polystyrene is the least worst. I have tried some other glues, nothing I have tried works equally well on both surfaces. The inherent problem is that polystyrene flexes but ceramic tiles do not. Trying to bind two such different materials and then exposing them to vibrations and flexes ... I was trying to think out of the box. What if I do not use glue at all, but simply varnish the poled side. I would also have to varnish the solder blob and the lead soldered on to it. But how then to secure the tile onto the polystyrene template ? By the lead itself maybe? So the tiles are allowed to flop around but are held in place by the lead, similar to how we stitch shirt buttons on ? If the epoxy/nail varnish/yacht varnish is applied on the poled side, it will never go because nothing would be pulling on it. But if we glue the tile on to the plastic substrate then when it snaps off it also peels away the layer of glue and then the poled side remains exposed. |
| tooki:
I think you really should call up Henkel or 3M’s (for example) industrial adhesives departments and talk to an application engineer who can advise you on a suitable adhesive. |
| MosherIV:
Have you tried double sided sticky foam pads? Also, forget nails might work (assuming it does not melt the polystyrene). |
| akis:
Talking about foam pads, maybe I can use leather/shoe adhesive, it is very flexible when it cures and weatherproof. Will buy some and test. Do not want to use pads (great idea BTW) because they are thick, my polystyrene is 0.5mm and the ceramic tiles are 2mm, the pad itself is 2mm. But I will buy some pads too to test. Edit: polystyrene is hard to stick anything onto, but the best glue is that found on duct tape, is that related to leather glue at all? |
| not1xor1:
I recently had to glue polystyrene to various other materials (metals, foam, etc) and among the various products I tested Bostik universal neutral silicon worked the best. Unfortunately I live in Italy and I do not know what is its commercial name in your country. Here it is sold as sil-neutro universale. Bostik bisonite might work as well although it is more rigid. |
| Navigation |
| Message Index |
| Next page |