Needing Bondo Advice, fixed leaking sunroof Options

[d_boice]

I had decided to ultimately fix my leaking sunroof. So with a blow dryer, putty knife, piece of 22 gauge metal, and $150 bucks later I have a filled roof.

I have no idea who cuts a hole into a perfectly good roof. -______-
But nonetheless, I am going to bondo the slight dip it has in it now.
Does anyone have any advice that you wish you knew when you first delt with Bondo??
anything would help tremendously..
Thank You

[Special_Edy]

Just make sure to get all the rust off the panel first, the bondo is designed to adhere to rough bare metal. The coarser the sandpaper the better.

Lay 2-3 layers of bondo, one thick layer to fill the hole and one thin layer to feather it out into the rest of the car body. Of course you should never go thicker than a 1/4 inch with the bondo.

And filling primer is going to be your new best friend. Make sure to get a couple different colors of primer, it helps you find high and low spots when you apply multiple coats with different colors. And definately get a sanding block(the kind that can flex) for sanding the bondo/primer. Sanding with your hand or a sander will create an uneven surface. Of course a sander helps to cut down the excess bondo quick, and they make files/scrapers for this too.

Beyond that you may want to mix up a small quantity to play with first, it dries alot faster than you'd think(especially 100°+ outside)