capt murph

Any advice on what type of materials can be used to:

1. Replace the 'tar' layer found on the interior floor pan.

2. The insulating fabric about 5/8" think found around the rear wheel well near speakers.
( The old fabric stuff had a nasty condition - when I removed it the dust made me cough and gasp - I'm scared to put it back in my car - it seemed nasty, just from age.)

Also, the tarred areas from the factory are not at 100% coverage. Would it be ok to do 100% coverage? I suppose near the exhaust system you may want to be carefull.

79rx_7

Does anyone know how to get the 'tar' layer off the sheet metel. All i can think to do is to scrape it off but it is not working that well. I am trying to cleen all the interior sheet metel, reprime and put a layer of dynamat down.

dj55b

iTrader: (2)

For sound proofing ... Dynamat seems to be the best choise to go with
As with the other stuff... I'm not sure if that stuff is actually the fire proof stuff or not, but you should be able to get that anywhere anyways.

As for taking it off, dry ice seems to be the choice, there's a few threads around concerning this. Basically you just spread the dry ice over the flat areas, and just watch it come right off. For the sloped area they have just been chisling away at it, or another method is a wire brush. Make sure to wear safety glasses though.

You should maybe be able to fabricate a piece of wood that would go on the inclines to fill up with dry ice to aid with removal but i don't hink anyone has tried that yet.

Also make sure that when you'd done scraping it you should try to use a high build urethane primer and a single stage paint to cover the primer do not leave it at primer stage thought. then you can put the Mats on and you're good to go.

MoleFB

DRYICE!! go buy some dryice from your nearby supermarket, break it up to smaller pieces and leave it on the tar for a few mins. you'll hear the dryice break up the tar. then just lift up the tar off the sheet metal....... check this thread out my buddy and i redid his whole interior. https://www.rx7club.com/1st-generation-specific-1979-1985-18/beginnings-new-carpet-black-interior-conversion-587864/

Rx7carl

Theres a good thread on the insulation in the 2nd or 3rd gen section. It used to be a stickie. If you cant find it search for "brownbread".

+1 on the dry ice.

7aull

iTrader: (2)

http://www.secondskinaudio.com/cgi-bin/index.cgi
Have some interesting points about them vs Dynamat, which is essentially an adhesive panel of tar
Getting this for my RX in the spring-
Stu Aull
80GS
Alaska

John64

I use Fatmat, it worked great for me. Some people have had issues with ther customer service, but I had no issues.

teamzzyzx

Dynamat FTW!!! Lil more expensive though.