well jeep i hate to disagree with andy and i certainly would not say he is wrong, but....
i am building a glass 36 ford coupe and just two years ago built a glass t bucket and i have done bodywork on both metal and glass cars so here is my opinion, fo what it's worth. if you have no raw fiberglassyou can prep very similar both glass and metal. by that i mean if the glass and the metal are both smooth and have been block sanded your paint is done the same way. to get a glass car ready for paint i first scuff the gelcoat down being carfull not to go into the fiberglass, (i disagree with andy here also it is not hard to get paint to stick to gelcoat)once you have sanded the gelcoat with 120 grit 120 grt da paper i use a product by ppg called k38 which is a very high build primer surfacer. again only if you have no raw glass showing, on those areas you need to you an epoxy primer. and by the way if you take no other info to heart listen to this one thing " never under any cercumstances use any body products that are not caytalized products" this in todays world is a very big thing. don't think you can shoot laq. primer becase it will be hidden by your caytalized base coat clear coat it wont work, but i digress, that happens as you age. anyway after you have the highbuild on you bloc it out so all sand scratches and high spots and low spots are gone, this is how you get that flawless super smooth look in paint. after a couple of good wet coats and blocking use a guide coat to see if there are any high or low spots, this is best done with a rattle can of spray paint. i know i said never use anything thats not catl. but your going to sand this off it's just so you can see where your high or low. that all done you well need to seal then base coat and clear, i won't go into all that stuff unless you need it later..
thats my two sence
)
bomo
i am building a glass 36 ford coupe and just two years ago built a glass t bucket and i have done bodywork on both metal and glass cars so here is my opinion, fo what it's worth. if you have no raw fiberglassyou can prep very similar both glass and metal. by that i mean if the glass and the metal are both smooth and have been block sanded your paint is done the same way. to get a glass car ready for paint i first scuff the gelcoat down being carfull not to go into the fiberglass, (i disagree with andy here also it is not hard to get paint to stick to gelcoat)once you have sanded the gelcoat with 120 grit 120 grt da paper i use a product by ppg called k38 which is a very high build primer surfacer. again only if you have no raw glass showing, on those areas you need to you an epoxy primer. and by the way if you take no other info to heart listen to this one thing " never under any cercumstances use any body products that are not caytalized products" this in todays world is a very big thing. don't think you can shoot laq. primer becase it will be hidden by your caytalized base coat clear coat it wont work, but i digress, that happens as you age. anyway after you have the highbuild on you bloc it out so all sand scratches and high spots and low spots are gone, this is how you get that flawless super smooth look in paint. after a couple of good wet coats and blocking use a guide coat to see if there are any high or low spots, this is best done with a rattle can of spray paint. i know i said never use anything thats not catl. but your going to sand this off it's just so you can see where your high or low. that all done you well need to seal then base coat and clear, i won't go into all that stuff unless you need it later..
thats my two sence
)bomo
