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Sat Feb 01, 2003 5:05 pm

Due to recieve my 67 standard back from the paint shop soon.
Before painting the bus I stripped it back to a bodyshell and pan and sandblasted the entire underbody ,welded where required , and then painted it all with grey POR.
The blasting removing all traces of underseal etc and exposed areas I would have missed otherwise.
The POR has left a great finish but now I am concerned that noise will be an issue and cannot decide what the best stuff is too use .
My bodyman has suggested some spray on stone chip style product?
Is POR really as durable and stone chip proof as the ads say and if so is it best to take care of soundeadening on the inside of the bus instead.

Appreciate all feedback on this.

Mon Feb 03, 2003 10:46 am

I did the same on my bug. Por15 all around under the wheel wells. I think it is. If anything get some sound deadener from like CIP1 they have this stuff that has a metal like background and seems to keep alot of sound. I think it will work well. I would go spraying everything with some rubber crap that might leave moisture behind it. I think POR 15 does its job Just insulate the inside and see what happens. It took me days to get all that old rubber off my car
Mark
Good luck

Tue Feb 04, 2003 11:46 am

Does Por15 come in a spray can? and is it good for painting the bottom of the car?

David ù JHC

Tue Feb 04, 2003 4:37 pm

Not as far as I know although you can thin it with POR thinner and then use a spraygun.
I hand painted the complete underbody after blasting - laying on my back with POR runing down my arms..........its true it DOES NOT come off like regular paint - took weeks to "wear" off my skin - use gloves!
The POR when painted on self levels and leaves a super smooth finish - you must prep the area first ensuring it is oil/grease free .Is it good I'm still not sure - my bus is still in parts and yet to be driven.
All reports are good though ,but I'm still not sure whether additional underbody coatings are advisable for sound deadening and stone chip properties.

Good Luck....

Sat Feb 08, 2003 7:25 pm

As for sound control, I bought some 'generic dynomat' from
http://www.mcmaster.com/

They are a huge industrial supply house in Atlanta. When you get to their home page, put this part # (9709T19) in their search function. Here is the item description.

Polymeric Mastic 0.070" 32" x 54" 0.10 -30¦ to +300¦F 0.7 Black 9709T19 14.62

They are fantastic about shipping. I had my stuff the next afternoon after I ordered from their web site. And no I dont work there.

My plan is to use contact cement to glue a layer of roofing tar paper to one layer of this stuff. This will make a sandwich to replace the tar boards on the bottom of a 70 Beetle. Not quite there yet as we are still stripping paint.

Later
Doug

Tue Feb 11, 2003 10:09 pm

Also you can try B-Quiet