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280z dash rebuild new idea


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#1 walkerbk

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Posted 12 September 2016 - 06:02 PM

So as all good stories start out... so, there I was... After sitting out in the Texas sun for all these years, my dash had bit the dust, many cracks had become small canyons and had been filled with RTV by the previous owner. While I had the car apart for my LS swap, and my dash was out for my Speed Hut Gauge install I figured I would rebuild the dash. I had heard many people say they just "fixed" the cracks and went with it, but I wanted to make something that would last so after reading about how I could cover the foam with fiberglass, I decided to give it a try. 

 

Removing the old PVC crap was easy work with a heat gun, the whole thing took less than an hour. after that, I spent a few days coating it with fiberglass... BIG MISTAKE, DO NOT USE FIBERGLASS. 

Let me explain this; first, in the case that you are ever in a car crash, your face would be met by a very soft plush fiberglass wall... not good. Second off, living in Texas, I am assuming that it had to do with the heat, the dash had bubbled and cracked within a few weeks. So what was I going to do. I spent many hours with the heat gun removing the fiberglass and many more hours patching the foam with spray foam.

 

So I was left with a uncovered foam dash with very few options. I could cover it with leather but that to would have problems in the heat over time. So I was on the hunt for something that would flex, handle heat, and be cheap to buy. I found a few people had success at patching parts with bumper repair and then it hit me... CAULK. I know I know you are all thinking I have spent to many nights in the garage with the car running, but after a hour of walking around Lowes, I bought a few things of exterior caulk and took them home to be tested.

 

After testing them all, I found something I like, Liquid Nails Extreme Heavy Duty. It spread somewhat thick, but it leveled out a little to reduce brush strokes. It is paintable, flexible, heat tolerant, and can fill gaps up to 3/8". so any flaws could be filled in plus it is sandable. I used a cheap trim brush from walmart (its the red one in the attached image) and it worked very well, I also tried using a regular paintbrush that I trimmed the end off to make it stiffer, but this didnt work as well. I think I trimmed it to short.

 

I have put four coats of this on the dash and it has become somewhat thick (maybe 1/8" thick on avg). I can push my fingernail into it and it will flex but return to normal. I started painting it tonight but do not have any pictures of it at this time. 

 

So, I might be crazy, but I fell this is going to work much better than the fiberglass. Let me know what yall think and I will keep yall updated.

 

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#2 Samurai7one

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Posted 15 September 2016 - 07:20 PM

Well I'll give you an "A" for out of the box thinking, as well as effort.
Let's see some painted pics.

#3 71240z1957

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Posted 09 November 2016 - 03:26 AM

Love to see the finished product.




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