flippineck
- Sep 8, 2013
- 358
- Joined
- Sep 8, 2013
- Messages
- 358
Tried to make a cover for a hole in some unknown soft casing plastic, out of a cutout bit of clear polypropylene sheet (a chinese dinner no
odle tray)
Tried to stick it over the hole with Araldite Rapid which is a 5-min setting 2-part epoxy available in UK.
The epoxy stuck fast to the casing plastic, but once set, the polypropylene just peeled off with zero adhesion.
It left the epoxy surfaces beautifully smooth level and flat, ready for something else to be glued on top if I can only find the right combination of material and glue.
I was thinking of trying to make a new patch out of bog standard PCB / veroboard material, in the hope of getting a good adhesion between that and the hardened epoxy using a dab of superglue.. anyone with experience of what sticks to what, would be great to hear any input..
The holes in veroboard would be useful for a bit of ventilation but it's not strictly neccessary. Blank PCB or blank sheet of some other sort would be ok too as the underlying design does allow for air passages. It's replacement covers for a sealed lead acid battery which ran dry of water, which I refilled and recharged after pulling off the original covers which hid the cell caps. The covers need to be well glued down as they prevent the rubber cell caps rising too far on venting.
odle tray)
Tried to stick it over the hole with Araldite Rapid which is a 5-min setting 2-part epoxy available in UK.
The epoxy stuck fast to the casing plastic, but once set, the polypropylene just peeled off with zero adhesion.
It left the epoxy surfaces beautifully smooth level and flat, ready for something else to be glued on top if I can only find the right combination of material and glue.
I was thinking of trying to make a new patch out of bog standard PCB / veroboard material, in the hope of getting a good adhesion between that and the hardened epoxy using a dab of superglue.. anyone with experience of what sticks to what, would be great to hear any input..
The holes in veroboard would be useful for a bit of ventilation but it's not strictly neccessary. Blank PCB or blank sheet of some other sort would be ok too as the underlying design does allow for air passages. It's replacement covers for a sealed lead acid battery which ran dry of water, which I refilled and recharged after pulling off the original covers which hid the cell caps. The covers need to be well glued down as they prevent the rubber cell caps rising too far on venting.
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