Anyone painted their horsebox help needed

[sarah23]

I have painted a few horseboxes in the past and never had a problem (they where all metal bodies) my new one is fiber glass and the paint just keeps coming up like a ripple effect in large places.

I am using gloss paint and it is over the top of the old paint. Would it make a difference if i'm painting on metal or fiberglass, or could it be the paint is no good (only bought it last week)

Do i need special paint for fiber glass or is gloss ok and i just have to find out why it is doing this.

Any help would be great as i'm feed up of keep sanding out the bad bits.

 

[kerilli]

i'd imagine you need to 'key' the surface so that the paint will adhere to it, either with sandpaper, glasspaper, or undercoat. a bodyshop place will advise though, they'd know exactly obviously!

 

[flying solo]

My local garage said my sinclair would need a rub down then primer coat before applying new paint even though its in great condition x

 

[Horses24-7]

I painted my fiberglass trailer with teamac marine gloss worked a treat!

 

[sarah23]

Think I will have to phone the paint shop tomorrow.

 

[The Fuzzy Furry]

Sound like the paint is having a reaction with the underlying layer, this does happen with fibreglass if the prep isn't completed (and sometimes when it is!)
You'll need to flat it back (or the paint shop will) and start again.
It will keep on happening the more you put on otherwise