Hi Machine Man,

For what it's worth, a note of caution if you're using urethane sealant. I don't know if this applies to butyl.

I've replaced several 240 windshields that needed pinch weld repairs. I do the prep work myself for obvious reasons, and then have the option of calling a mobile installer or installing it myself.

The owner-operator where I source glass, supplies, and advice told me that they do not guarantee for leaks on pinch welds that have been painted. The reason he gave is that the paint off-gasses for up to 3 months and these gasses can compromise the bond.

He felt that 3 months was excessive, but recommended at least a few weeks or more if it was not inconvenient. This was glass I was installing myself so there was no warranty issue.

He also advised to scuff up the paint with scotch bright and use the optional primer that comes in a small finger nail polish like bottle. He said the primer would cover any pinch weld flash that might be nicked in the scuffing.

The procedure has worked well for me. I've also been very happy with the Chinese replacement glass. From the rocks they've blocked so far, I have a gut feeing that the thinner material is more resilient than the original.

Regards, Peter