Trying to cover up t-tops...?
Posted 25 November 2012 - 11:18 AM
At first i was wet sanding, then i went to just sanding and it would still show hairline cracks like you see in the bottom right of the first pic.
i did all the other chipping to start over.
Should i be doing something else to cover this up? Thanks in advance Earle
Posted 25 November 2012 - 11:33 AM
Posted 25 November 2012 - 11:49 AM
The orange is the bondo glaze. Doesn't happen all over just small area's different times...getting to be a pain in the ...
Posted 25 November 2012 - 02:51 PM
Insufficent dry time of the Glaze ?
Maybe there's a chemical reaction (in this case , oxidation ) ?
How long are you allowing the glaze to setup before you start working with it ?
Also , wet sanding is to be used *only* after primer coats are built-up over the filler / glaze . Primer absorbs moisture , as do fillers (plastic and polyesters) . It may be something as simple as allowing the H2O sufficent vapourisation before primering / painting .
Best of luck !
Edited by 1972coronet, 25 November 2012 - 02:54 PM.
Posted 25 November 2012 - 05:13 PM
Should I strip all the rest off or leave it and cover it up? Thanks Earle
Posted 25 November 2012 - 06:03 PM
Posted 25 November 2012 - 08:13 PM
Next, did you scuff the body and T-top panels before you primed them? If they are clear panels as found in the Monogram 1/24 '79 Camaro Z/28 and '77 Trans Am kit, the panels themselves will be very smooth and glossy, a surface paint does not like to stick to very well. It looks like the red oxide primer is still bonded to the plastic, but the filler you used isn't bonding to the primer...
The glazing putty is meant to be used for thin imperfections, and it always helps to sand the primered roof to give the glazing putty something to "bite" into. Not sure if you sanded the roof or not, nor which kind/brand of primer you used, though.
I would sand it down to bare plastic using 400, then 600 and 800 grit wetasanding paper, then assess the situation. Ideally, the roof panels and surrounding roof will be level and the joints between them eliminated, thereby eliminating the need for any filler.
Posted 25 November 2012 - 11:28 PM
Posted 26 November 2012 - 05:17 AM