Resin question
Race Director
Joined: Jan 2003
Posts: 17,696
Likes: 3,683
From: Central Arkansas
As far as I know the method of constructing body panels didn't change except in minor detail, from 54 or 55 until what looks to be about 72 from the posts above (I thought it was a little later).
I think for clarity what we need is for JohnZ or someone to post that GM assembly plant photo showing the worker blowing chopped fiberglass stands into the screen mold for a C2 roof panel prior to it being placed in the press molds with resin for molding and curing. I think it's in my Noland Adams book but I don't have a copy I can paste in here.
I think for clarity what we need is for JohnZ or someone to post that GM assembly plant photo showing the worker blowing chopped fiberglass stands into the screen mold for a C2 roof panel prior to it being placed in the press molds with resin for molding and curing. I think it's in my Noland Adams book but I don't have a copy I can paste in here.
Le Mans Master
Joined: Dec 2009
Posts: 5,514
Likes: 1,955
From: Plano IL
2026 Corvette of the Year Winner - Unmodified
2025 C1 of the Year - Unmodified Winner
2019 C1 of Year Finalist (stock)
2018 C1 of Year Finalist
As far as I know the method of constructing body panels didn't change except in minor detail, from 54 or 55 until what looks to be about 72 from the posts above (I thought it was a little later).
I think for clarity what we need is for JohnZ or someone to post that GM assembly plant photo showing the worker blowing chopped fiberglass stands into the screen mold for a C2 roof panel prior to it being placed in the press molds with resin for molding and curing. I think it's in my Noland Adams book but I don't have a copy I can paste in here.
I think for clarity what we need is for JohnZ or someone to post that GM assembly plant photo showing the worker blowing chopped fiberglass stands into the screen mold for a C2 roof panel prior to it being placed in the press molds with resin for molding and curing. I think it's in my Noland Adams book but I don't have a copy I can paste in here.
Le Mans Master
Joined: Dec 2009
Posts: 5,514
Likes: 1,955
From: Plano IL
2026 Corvette of the Year Winner - Unmodified
2025 C1 of the Year - Unmodified Winner
2019 C1 of Year Finalist (stock)
2018 C1 of Year Finalist
http://www.corvetteactioncenter.com/...961/61sae.html - C1 fiberglass process
Last edited by csherman; Nov 3, 2015 at 01:51 PM.
Thread Starter
Pro
Joined: Mar 2002
Posts: 559
Likes: 0
From: Guelph Ontario
My shop temperature is between 60 and 65. I keep it a little cool so I can wear somethin to keep the glass off my skin!
My roller is exactly like that.
I once measured exactly how much hardener to add for one inch of 3m resin in the cups I use. I've been doing that amount ever since. Perhaps I need to recheck it. I was told a laminating resin would cure with a tacky surface and just assumed this was correct. Can anyone verify that the 3m is a laminating resin?
Thread Starter
Pro
Joined: Mar 2002
Posts: 559
Likes: 0
From: Guelph Ontario
Thread Starter
Pro
Joined: Mar 2002
Posts: 559
Likes: 0
From: Guelph Ontario
The only thing I can add is that you might experiment with trying to increase or decrease the resin applied to the mat. Bubbles sounds like the matrix may be ending up a bit too resin rich and bubbles are forming in the excess on top. If a solid layer of resin is forming over the surface after rolling it out and you are seeing the bubbles in that - that would sound to me like too much resin is being used. But, could be that it's actually resin lean if the bubbles could be areas that didn't bind together when rolled out. If you could take a picture of the bubbles that might help someone figure it out.
Thanks,
Melting Slicks
Joined: Feb 2010
Posts: 2,077
Likes: 72
From: Reno Nv
I don't have the part number handy. The car isn't at home. But I will check.
My shop temperature is between 60 and 65. I keep it a little cool so I can wear somethin to keep the glass off my skin!
My roller is exactly like that.
I once measured exactly how much hardener to add for one inch of 3m resin in the cups I use. I've been doing that amount ever since. Perhaps I need to recheck it. I was told a laminating resin would cure with a tacky surface and just assumed this was correct. Can anyone verify that the 3m is a laminating resin?
My shop temperature is between 60 and 65. I keep it a little cool so I can wear somethin to keep the glass off my skin!
My roller is exactly like that.
I once measured exactly how much hardener to add for one inch of 3m resin in the cups I use. I've been doing that amount ever since. Perhaps I need to recheck it. I was told a laminating resin would cure with a tacky surface and just assumed this was correct. Can anyone verify that the 3m is a laminating resin?
I've had the 3M stay tacky when I didn't use enough hardener but only a couple times.
What I do a lot is heat up the surrounding glass with a heat gun, fairly warm to the touch, gun on low, 6 in. away and not directly on the wet glass.
