The Stovebolt Site Forums The Shop Area Paint and Body Shop Is paint susposed to chip

My bed is painted and ready to assemble. As I bolted the rear cross-member to the side panels the paint broke off in 1/2" and 1" size pieces. A paint shop said that is not an uncommon thing to happen.
http://s729.photobucket.com/albums/ww296/BIGCHEVY3600/?action=view&current=BEDPAINTCHIPS.jpg

That is not common. I suspect that the prep in teh area was less than stellar. it looks to me that where the bolt is there is the priner is also bubbled?

You need to put a flat washer between the head of the bolt and the surface. What is happening is the shear of the bolt head against the fastening surface is more than the paint bond can withstand. That is very common on freshly painted surfaces. Even with a flat washer you need to go slow and easy when tightening so that the washer doesn't turn, that will cause the same problem. The amount of area that peeled is uncommon so I suspect that the prep could have been better. What usually peels is immediately around the fastener and is often addressed with a touch up brush.

I'm with Tiny, can happen easily, but it looks like there may also be a problem with the paint not bonding to the primer well, too much time between applications or wrong type primer maybe

Bill

id have them re do that in a heart beat. that should not happen. the paint should almost twist with a washer is its fairly fresh. Is it BC/CC or single stage paint? that could make a difference too.

this is why prep work is 95 percent of the work when it comes to paint.

hope all works out!

Marc

It is a single stage paint.

well in my mind that could also be a reason its chipping excessively. Bottom line though is that is not common and should be repaired free. Because even with a washer i believe you would of still had issues. Long as you didnt torque down the bolts so tight that you sunk the whole metal area to cause that chip, then its not your fault.

The paint shop agreed to "touch up" the area. Should they repaint the entire bed? I hope the cab is not in the same condition.

Everyone has good points,heres a few more.How long after being painted was it put together /soft rubbery paint will move and peel off,was the paint to thick,and was the paint backed or air dry

I apply a bit of dielectric grease to the shoulder of fasteners, that contact the paint. Although not foul-proof, against chipping paint, it is very helpful with reducing the friction caused by the two surfaces contacting each other, thus minimizing the potential damage.

At least 6 to 8 months from paint to assemble. Air dry.

The bed is Mar K and I kept it in the boxes it came in for over 6 months before painting. I spoke to the painter this morning. He said that primer (old primer) over 6 months old might be the problem. The sides came from Mar K already primed so all the painter needed to do was sand then paint. I could understand if the primer was subjected to weather but not in the boxes.

Strongly agree. There should be a bond between the color and primer/or sealer.

Something wrong, sorry.

My SWAG is the sealer cured too long before the final color-scuffing it is necessary if it has been abt 24 hrs or so, less in hot weather.