I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

ss wrote:
I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

Depending on the plastic it may be better to bond a thicker similar
plastic using dichloromethane (methylene chloride)if it is a plastic
that it is a solvent for.

On 14/12/2018 22:17, ss wrote:
I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

Its not the greatest bond but car body filler or chemical metal (tow
part polyetser resins with filler) will bond to roughened metal well and
roughened plastic a bit. That plastic looks like it is NOT an olefin
(polythene etc.) which is good news.


--
If I had all the money I've spent on drink...
...I'd spend it on drink.

Sir Henry (at Rawlinson's End)

On Friday, 14 December 2018 22:17:55 UTC, ss wrote:
I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

Bad idea.
A crack may well appear in plastic at the edge of the metal. Supposing it sticks.(Stress concentration)
You need another bit of plastic with the edges tapered down.
An a suitable solvent glue for that plastic.

On Friday, 14 December 2018 22:17:55 UTC, ss wrote:
I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

pop rivets are the worst thing you could use on plastic.


NT

harry wrote:
On Friday, 14 December 2018 22:17:55 UTC, ss wrote:
I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

Bad idea.
A crack may well appear in plastic at the edge of the metal. Supposing it sticks.(Stress concentration)
You need another bit of plastic with the edges tapered down.
An a suitable solvent glue for that plastic.

Is there an echo in here?

On 14/12/2018 22:17, ss wrote:
I have a plastic item that has cracked, I used `plastic weld` to glue
the plastic, I suspect that will eventually fail so want to strengthen
with a metal plate (stainless steel) the size of the patch is approx 6 x
4 Cms

One option is pop rivets but I dont have enough clearance so was
thinking of using some sort of epoxy.

Anyone got thoughts on what would be a strong bond. There will be some
small vertical pressure but not a lot.

https://imgur.com/a/9aUQXty

A mate of mine was raving about Screwfix Nemesis the other day (it's a
sort of aerosol "EvoStik", so not a gap filler). I have used it to stick
flexible (EPDM?) foam to polypropylene.