2 replies to this topic

[darkcat]

I'm just nearing the end of my build and unpacked the Sportspack arches i got from Minisport.

Eew.

They are really soft, and lumpy, so I've given them a sand back with 400-grit and a layer of plastic primer. 

However, I'm using Cellulose paint - I assume that's just going to crack, either immediately or quickly. 

What sort of paint (if any) is actually suitable?

[lawrence]

Personally I would not fit them and find some fibreglass copys. I've got the same ones lurking in the garage, fitted one and painted it. Was horrible.

I used plastic primer and cheap celly spray cans and it was fine tho. But there are others on here whom are better at the paintwork department.

[bluedragon]

You should use a urethane-based paint (with a flex additive if the paint requires it for flexible plastic parts.) If you don't have a good respirator and mask to protect your lungs when spraying, absolutely avoid any paint with isocyanates.

 

Barring a urethane, look for any sort of paint with a flex additive. A long time ago flex additives were available for celluose (aka lacquer) but I'm not sure if they're available anymore. Whatever the paint type, a flex additive will prevent the paint from cracking (especially celluose - you're right, this stuff will just crack off without a flex additive to make it more pliable.)