OT...Adhesive/glue for plastic, Wagner paint sprayer Options

[Porschef]

So the tool abusers have handed off another patient, a Wagner 91460s
(does that count as Porsche topic? (IMG:style_emoticons/default/rolleyes.gif) )...anyway, I opened it up to find that the pressure switch housing has broken, thus not allowing the unit to shut off, and build too much pressure. I think that may have affected the prime valve, but that's not for certain.

Anyway, has anyone got a solid suggestion for an (unknown) plastic glue? The back of the adjustment stem does get captured in the rear housing, so I think that takes most of the stress.

I've got epoxy, model glue, JB Weld kicking around but I'd like to get a one and some thing going.

TIA,

Joe

[Valy]

Epoxy is not good for plastic. The model glue is good only for certain plastics.

What I recommend is the following:
1. Use some steel wire to secure the pieces if possible.
2. Use superglue (the instant glue that glues everything in 5sec) and baking soda. You build a support structure around what's broken to increase the contact surface. Put a bit of glue and then add some powder. Then remove the excess powder and add more glue and more powder unitl you're.satisfied. The result is a very hard polymer that you can file and paint if needed.

[Porschef]

Interesting. Thanks, I'll give it a try. Would you advise removing a little material to allow for more adhesive to provide surface contact?

A pic

[Valy]

In this case I would just make 2 wire stitches. I guess that the other part looks the same so more stitches there.
Drill 1mm holes and use 1mm security wire to stitch.

[Mike Bellis]

This stuff is awesome and will bond almost any plastic.
https://www.amazon.com/gp/product/B003HNFLM...=UTF8&psc=1

[Chris914n6]

White plastic... that's bad, specially if it's slippery. Probably Vinyl based like pvc. If you can't order a replacement part then a mechanical fastener is needed. The glue bond won't hold with a strong force against it, like it seems that part does.

[Valy]

Here is an example of something similar. The left was the same as the right bump before it broke. It is constantly under load as there is a spring and button on the other side.
In this case I couldn't stitch it due to the size. I did make a wire crown around it to help stabilize everything and then built the crown up with superglue and baking soda. It looks a bit messy since it is vertical surface and the glue kept leaking down but the repair is pretty hidden so I painted it black and don't care much about aesthetics there.