I have just taken the ground effect off the bottom of the doors and need the to fill in the holes at the bottom. Can I use just good old regular bondo or should I use something else. Also can I just use some type of screen mesh on the backside as a holding agent to hold the bondo

On metal you can use Bondo. On the composites you should use a flexible filler. These can be found at body shop suppliers or online. Bondo will crack if the plastic panel is flexed in the area of the fill. Anything will be fine to put over the backside of the hole, Duct Tape works fine. It is a good idea to taper the hole and scuff up the surface really rough to give the filler something to grab onto.

[This message has been edited by Benja (edited 04-19-2011).]

Fast forward to 4:05

RWD,
Hey man thanks for posting that video, it is very educational. I wonder if the same thing could be done with the SEM style filler recommended a lot for the fiero body panels on this site. I have some similar problems with the area around my Sunroof that I need to fix and I would PREFER to only have to do it once... Peace

Pete

I used a special material material made for SMC to fill the holes in my decklid when I removed the luggage rack:

//www.fiero.nl/forum/Forum2/HTML/103013.html

If I were to do it again, I would widen the holes on the black side and put tape over them, creating a kind of hourglass-shaped filler plug.

RWD,
Hey thanks for the link man, I got work to do on my cars body before I paint it. What kinda paint did you use there? Has the Filler you used held up and not blistered up or cracked? Peace

Pete

Paint has held up fine, but the car has been garaged for the last year. Just used cheap rattlecan Duplicolor primer and paint.

thats a cool idea i wonder if that would work to put a front spoiler on. ive had some ideas in my head about combining different bummpers.

In another thread Paul posted this.

SEM 39708 Flexible SEM-Weld. Available at your local autobody/paint supplier.
Grind any area you use it with 24 grit discs - SLOWLY so as not to heat up & melt the material. Heating it will cause the pores to close & nothing will stick. Back up the hole first with the same product, & chop up some fiberglass mat with scissors to mix in it. Then "V" out the top of the hole & fill it with the same method.
~ Paul
aka "Tha Driver"

I would like the thank everyone for posting. So would the consensus be to use Flexible Sem-Weld on the bottom of the door

i was asking similar questions yesterday, some good links. //www.fiero.nl/forum/Forum2/HTML/115705.html