How To: DIY filled motor mounts

Where do they sell window weld ? I've been to 2 hardware stores and 2 auto part stores and no one knows what I'm talking about.
 
FWIW I used Polyurethane caulking. It's black, matched the oem exactly in terms of appearance. I let it dry for three weeks to be sure.

This was done after buying the SU rear mount....what a POS. Vibrations and rattles galore were caused by the SU and the difference in terms of shifting was not that great.

My modded OEM engine mount is waaaaaaay smoother than the SU and the car feels way more refined. The SU made the car feel cheap and buzzy.
 
I just did this today to my 99 1.6 protege front and timing belt side mounts...The windo-weld has really gone up in price to $18 at autozone in socal as of sept 09...I just added a strut bar to my car, and my engine was clanking against the bar due to the thrashed mounts...With the windo welded mounts in place the car feels reallly solid, like a german car. The strut bar seems to only make a difference on rough roads, not cornering...if i hit a bump with one wheel, i feel the other side of the car pitch up too, whereas before it seemed like the car flexed. All in all the car feels like its made from a single piece of granite now.
 
glad it worked for you. It's really tough stuff. Maybe warming it up would get it to flow easier.
 

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