I just finished all the body work, priming, and sanding yesterday.

Will the bumpers and trunk spoiler need a flex additive added to the basecoat and clearcoat or could I get away with just using less hardener? The local shop sold the additive for $55 a quart, which is much more than needed.

 

I used the flex agent when i got my car repainted.

 

Any plastic piece that might "flex" should have the flex added to the paint.

 

yo holley,

Why u repainting??

U tryin to clean up rust spots or jus wanna repaint?

How are u doin this...inside a garage or outdoors???

 

Definitly any part of the car that's prone to flexing needs it added to prevent any cracking

 

 

I drove 78 miles to a friends' autobody shop to get a free half pint of flex additive. With the basecoat and clearcoat both urethane based he said I really didn't need a flex additive. He adds it only to acrylic enamel paints.

 

most shops will not add anything to your paint. just spray normally...

 

I just painted a rear plastic aftermarket cover. I used a naptha cleaning agent and then a product called "Bulldog" for adherence. Those two items are essential. After that (according to my paint shop), you can go the belt & suspenders route by using SEM flexible primer and adding flex additive to the paint/clear. I didn't, and so far so good.......