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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.

 

Attached Files



#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.

#4 MRGierut

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Posted 22 March 2017 - 10:12 AM

Interesting..... 



#5 walkerbk

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Posted 25 March 2017 - 11:22 AM

Sorry it has been so long, I forgot about this post. Well it survived the lovely texas winter and we are now getting into the 80s and low 90s so we will see how the summer goes.

So far it is looking great for what I did. I am sure if I spent more time on it, it would look much better. I believe that the 2 things that I didn't do that I should have is. 1, sand it down better. The caulk is sandable so you should be able to get a smooth finish. 2, I think that you could probably add water to the caulk to thin it out to make it flow over the dash better. This would remove the brush strokes.

Again, overall I am very happy with it and I have had to tell everyone that has ridden in the car that it is not original (they aren't really car guys though).

The attached pictures don't really do it justice but here they are. If anyone has any questions let me know. Btw, the reason I did this is because the fiberglass cracked. Plus if you are ever in a wreck, a fiberglass dash is not what you want to hit your head on.

After the summer, I will be redoing the rest of the interior. I will be applying great stuff foam and sanding it to get the exact shape I want and then doing this over it instead of vinyl.

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#6 grannyknot

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Posted 25 March 2017 - 02:45 PM

Well, that's quite... unique,  kinda reminds me of Fred Flintsone's ride.  Are you going to sand it down to shape and cover or spray it?



#7 BJSZED

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Posted 25 March 2017 - 04:44 PM

Beauty is in the eye of the beholder...definitely A for effort and for trying something new. Maybe in a safari type car ?



#8 tim.d

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Posted 25 March 2017 - 05:02 PM

I have had to tell everyone that has ridden in the car that it is not original (they aren't really car guys though).

 

Well at least you have polite friends



#9 walkerbk

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Posted 25 March 2017 - 08:29 PM

Hey now, as I said, the pics don't do it justice. There have been several times that I don't even notice that it's not stock. If I find a decent one at a junk yard now that I know this will work, I will go back and redo it, but until then this one stays as is.

She might be ugly, but she has an LS under the hood. Maybe one day she will get a nice coat of paint.

#10 Ryan Merrill

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Posted 25 March 2017 - 08:50 PM

not going to win you any beauty contests lol. I would try and get another dash. The silicone try stuff just can never be smooth. In the end its your car, and if your happy, its all that matters.



#11 fyanrudger

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Posted 25 March 2017 - 10:09 PM

Sometimes new ideas don't work...


Edited by fyanrudger, 25 March 2017 - 10:09 PM.


#12 Samurai7one

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Posted 29 March 2017 - 03:16 PM

First thing that came to mind:
Attached File  IMG_0058.PNG   928.99KB   0 downloads

#13 walkerbk

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Posted 29 March 2017 - 06:02 PM

you guys are killing me. It's the fact that it's just the photo that looks bad. The dash really looks a lot better than the photos show. Here are some during the installation. These are more of what it really looks like.

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#14 Medic8

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Posted 01 April 2017 - 09:30 AM

I applaud your effort and as every photographer knows, lighting is everything. I wonder if that flex seal liquid would flow over, just a a cover, to smooth it out....



#15 Samurai7one

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Posted 02 April 2017 - 07:45 PM

Or maybe some chia paste, like this:
https://youtu.be/K0dyH8ZqYVU

#16 Nelsonian

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Posted 02 April 2017 - 08:45 PM

Or maybe some chia paste, like this:
https://youtu.be/K0dyH8ZqYVU

Tough crowd here! 

Got to admit though I like the Scooby and Shaggy chia pet though. Like Zoiks Scoob!


Nelsonian, San Diego, CA.

#17 hcarrickz3

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Posted 03 April 2017 - 07:40 AM

Anyone tried the Polyvance flexible dash repair kit?

#18 MRGierut

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Posted 03 April 2017 - 07:42 AM

Anyone tried the Polyvance flexible dash repair kit?

Yup.

 

http://forums.hybrid...n-280z-project/

 

Dash repair is towards the bottom of the first page.


Edited by MRGierut, 03 April 2017 - 07:43 AM.


#19 Greeko

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Posted 04 April 2017 - 12:57 PM

the second set of pics look much better!

 

I have started using hook and loop sanding blocks for my dash restoration. Made a huge difference for leveling out surfaces.
 






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