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962porsche 962porsche is offline
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Join Date: Feb 2009
Location: branford ct
Posts: 3,440
to many i only own 38 cars right now i own more 944 body cars than any others .
this spring i own 46 cars but i sent some off to the bone yard two 944's and a 930 race car . one of the 944's the guy drove right onto the flat bed tow truck . it needed ball joints the other 944 had a bad trans and the 930 i stripped every thing off i could most of the panels were fiborglass . they were up for sale but only some tire kickers came and looked it them . i'm moving two fo my shops and they needed to go .
any way . grind the jellcoat off with 36 grit on a grinder . take it back about 4 inches past the seam of were you want to bond the two panels . if you find that the jellcoat is very thick and you will don't worry about it you have to remove it or you will have a ghost of the seam coming back a year later . you will be building what your grinding away with the fibor glass . after you strip it back use cloth not mat and do your layups . cross the weave of each layup so that non of them run in the same direction 3 on the top side and 3 on the under side is best . use only enough resin to wet the glass cloth no more if you over use resin it will srink in later and you will see the seam or it may crack later on . let each coat or layup dry before the next one goes on . i let it sit for about 12 to 24 hours between coats or layups to fully cure . you then can give it a sanding with some 80 grit between coats /layups do not shag up the cloth you just want to give a scratch for the next layup to bite into .
when your finished with your layup and the panels are nice and strong you can use a product like duraglass to fill in any lows and to do any majer shaping you will need to do . that is what it's made for . to do any final finish filler work you then can use a regular type body filler . don't use a regular body filler over the fiborglass you layed up it will srink in later on and you will see it . so use the duraglass 1st . then you can use a filler primer or a polyester spray filler . i tend to use a spray filler insted of a filler primer on some thing like that . the reason is most of the time the other products your using are also polyester so everthing is a good product match and every compatible .
jellcoat is a product were nothing really likes to bite into it and say for very long so that is the reason you really need to remove it and not work over it at all .
Old 08-08-2012, 06:16 PM
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