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Old 10-08-2003, 02:53 PM
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Fiberglass body help

I am pretty new to this forum...I have a fiberglass "kit" car located in Calgary Alberta. I really need help blocking out the body and preping the panels and getting it ready for primer. I have an understanding of "how" to do it but I seem to be incapable of actually performing the function. A body shop won't tackle it so I need to find bodyperson who could take it on. Any thoughts?

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Old 10-08-2003, 07:14 PM
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Here is the basics. First go over the entire body with 80 grit paper. Scuff it up real good and do not miss any spots this is what your base primer must adhere to. Wash the body completely with soap and water. After it is dry wipe it down with a prep solvent like PPG DX330. Apply two wet coats of a high build primer like PPG K36. When the primer has cured dust the body with a contrasting color from a rattle can, I use flat black. This is your guide coat for sanding. Purchase an 18" long body sanding board and a stack of 180 grit paper for it. Using the 18" sanding board block sand the body. Try and sand all the contrasting color off without sanding completely through the primer. Any spots where the contrasting color remains are low spots. reapply primer again and repeat the contrasting color and sanding routine until there are no more low spots to be seen after sanding. Primer one final time and sand the entire body with 220 follow that with 400 wet/dry paper wet.

the contrasting guide coat paint need only be a slight dusting only enough to see while sanding.


Last edited by 302/Z28; 10-08-2003 at 08:01 PM.
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