I am looking for suggestions as what to use and how to repair cracks in the lower plastic dash panel on my 77 Maverick. This is the dash panel for the A/C vents, glove box and runs under the steering column. Special glue in crack and behind, glue a metal strip for support on the back, Strong tape on the back of the crack? Looking for suggestions from someone who has successfully made this repair on their own car. This dash piece is very brittle This is not the dash pad repair I have fixed that thanks to the tech articles on this forum.
What i did was use a solder gun and melt the cracks back together from front and back side pushing the melt towards the center, after cool sand and add filler where needed resand and paint! (Avoid breathing the fumes will give you a headache)
Plastic weld epoxy, works amazing.. Just make sure you apply it correctly and what I did was took more of the plastic out in my cracks so it had a void to fill and it feathered it's way out flush so that was it wasn't just butted up to each other.
I had excellent results repairing the plastic heater blend door linkage on my Ranger. I realize it's not a dash, but I used a piece of plumbers strap and JB Weld to coat and hold the strap to the linkage piece. It is very strong and I'm sure will probably outlast the truck! I sanded the broken parts to remove the glaze and give them a rough surface. I then cleaned them with a short blast of B-12 carb cleaner. Then I cut the plumbers strap to fit and cleaned it with B-12. Next was to mix the JB Weld, then coat the strap and the two pieces and stick them together. I held the parts in place with two wood clothes pins and let the finished piece sit for 24hrs. The reason I think this will work for you is that I could barely see the joint where the break was. If you have the room for the metal on the backside of your dash, this should do the trick!
If you had another one or pieces thereof to "dissolve", you could try this?? http://blog.hemmings.com/index.php/2012/08/30/tech-tip-solvent-welding-plastics/
