Gel coat questions

[Lance Van Nostrand]

David,
What single stage urethane white are you using?  I'm not aware of a product 
like that.
--Lance

----- Original Message ----- 
From: "David Flynt" <dflynt at verizon.net>
To: <discussion at nsrca.org>
Sent: Tuesday, April 12, 2005 9:11 AM
Subject: RE: Gel coat questions


> Anthony,
>
> A layer of primer or sealer is unnecessary to get automotive polyurethane 
> to
> stick to the gelcote.  It must be free of residue and every square inch of
> shine removed with a gray scratch pad.  Primer is nice for filling small
> surface defects, however to save weight, it is desirable to wet sand (with
> 800 grit) all of the primer off, leaving just the defects filled with
> primer.  This is risky because sanding off the primer often exposes
> pinholes.  On white gel coats, I like to 1) scuff entire fuse, 2) fill 
> voids
> and pinholes with Hobbyco Hobbylite filler, 3) spot spray the seam and 
> other
> surface defects with white single stage urethane, and 4) carefully wet 
> sand
> the white (not the gel coat) with 800.  You can use primer in the above
> sequence also, but I find that a final spray of white along the seam is
> better at revealing pinholes.  It also matches the gel coat color which
> makes covering with other colors easier.
>
>>Will it make a decent white once it is cleared?
>
> It will, depending on how fussy you are.  If you have spot sprayed white 
> on
> surface defects, the gel coat and white may not match.  I have always shot 
> a
> very light coat white over the gelcoat masking to avoid overspray as with
> any other color.  It won't add much weight.
>
> I hope it goes well for you.
>
> David
>
>
>
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of Anthony Romano
> Sent: Monday, April 11, 2005 3:13 PM
> To: discussion at nsrca.org
> Subject: Gel coat questions
>
>
> Getting the new bird ready and need some help. How do I deal with gel 
> coat?
> Does it need primer? Can I just scuff and shoot? Will it make a decent 
> white
> once it is cleared?
>
> Any help would be appreciated
>
> Anthony
>
>
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