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| What is under the paint on my hood? (Page 1/2) |
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CSM842M4
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OCT 14, 01:01 PM
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A few minutes ago, I was sanding away the loose chunks of material on the hood of my '86 GT in preparation for restoring the original contours and applying paint products. In the process, between the paint/primer and the stranded 'glass, I noticed what appeared to be a layer of gelcoat. Is this correct, factory work, or a prior owner's (or shop's) attempt at a repair? Just want to know before I proceed. Thanks in advance - Chris
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DrXtreme
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OCT 14, 05:49 PM
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Post a pic of what you are coming across. I don't remember the SMC having a Gel coat, but it has been a while since I painted one, namely my 1985 Fiero. Man I miss that car; only had 4 cylinder but paid $1800 for 18k miles on it back in early 1990's.
Dr Xtreme
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CSM842M4
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OCT 14, 07:38 PM
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What image-hosting site works best with this forum and a Samsung Galaxy? And then, how does one throw pics on a post here?
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hnthomps
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OCT 14, 09:24 PM
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| quote | Originally posted by CSM842M4:
What image-hosting site works best with this forum and a Samsung Galaxy? And then, how does one throw pics on a post here? |
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Past a reply and then use the image uploader button. You can also go to the red/white/blue button at the bottom of the page and post using the PFF internal poster but there are size limits. I suggest using the Upload Image button is both easier and quicker.
Nelson
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CSM842M4
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OCT 15, 06:54 PM
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 Let's see how this shows up. 4 separate layers. Hope this gives an idea of what I'm looking at...
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DrXtreme
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OCT 16, 02:47 PM
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That mystery layer must be some type of Gel coat to give a flat surface for paint application. I can't remember the SMC finish and if was rough like fiberglass.
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mrminty
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OCT 16, 04:36 PM
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I worked in a Chevrolet plastics plant for a few years where SMC van engine covers and Mailbu and Monte Carlo noses were molded out of SMC. Although it was fairly rough and the fiberglass was visible when the strips were put into the molds they came out relatively smooth after the pressure and heat were applied. They were nowhere near as smooth as the nylon Fiero quarters I later ran at the Pontiac pressed metal plant out of Dupont Bexloy nylon from 85-88 though.
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CSM842M4
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OCT 16, 05:37 PM
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Thanks, all so far. I'm curious as to whether fiberglass resin would work as a substitute for whatever this stuff is. Removing the chunks of it left about a 3/16" dip in my hood...
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Tha Driver
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OCT 19, 01:59 PM
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The '"material in question" looks like fiberglass resin to me. Is it clear looking & produces white dust when ground? If so that's NOT the proper way to fix SMC.
If I were you I'd scrap that hood & find a replacement - unless it's just a small area then you can grind it out & use SMC filler to repair it..
~ Paul
aka "Tha Driver"
Custom Fiberglass Parts[This message has been edited by Tha Driver (edited 10-19-2020).]
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CSM842M4
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OCT 19, 02:19 PM
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Yes sir, clear with white-ish dust when sanded. It fits in about half of a 4" x 7" rectangle...
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