Plastic Welding our pesky dash cracks

[ford-bldr]

Came across these vids using materials for reinforcement.

Tried plastic welding before but the material got thinner and the cracks came back.

This could also be used for attaching a backing plate for better mounting locations etc.

https://youtu.be/0YRPMcVJ2D8

https://youtu.be/LetUNViQ4IM

https://youtu.be/xVtw5HTMMAM?t=118


Your milage may vary...

Use stainless materials for our marine environment.

Seems like you would want to squeeze seams together - at least initially - to get a tighter seam...

[awc105]

For what it's worth, when I was repairing cracks in the dash of my CV16 I used some ABS pipe cement (https://www.homedepot.com/p/Oatey-8-oz-Medium-Black-ABS-Cement-308893/100345366)

I drilled a hole at each end of the crack to stop it from spreading, then cut a groove into the crack with a ball end stone on my dremel. I filled the groove with the ABS cement, I also applied it to the surface behind the crack. I bought a sheet of 1/16" black ABS off of amazon

(https://www.amazon.com/Install-Bay-ABS116-Universal-16-Inch/dp/B0049MWXM8/ref=sr_1_3?crid=1PCAQR6TJSZI0&keywords=abs%2Bsheet%2B1%2F16&qid=1699821633&sprefix=abs%2Bsheet%2B%2Caps%2C105&sr=8-3&th=1)

and cut it into strips that were then applied behind the crack to stiffen it. Since the ABS cement has a solvent in it, it actually melts the material together to form a sort of plastic "weld"

Once, the cement cured, I went back and sanded it smooth

Since ABS is a basic thermoplastic, it is fairly easy for it to be re-welded and bond to itself to make a durable repair.

-Andrew

[Hyperacme]

I added this to your other thread ..

http://forum.cgoamn.com/index.php?topic=8342.0