76-77 Roadrunner WIndow Louvers

[dodgeman316]

Anyone know for sure what type of plastic the vertical roadrunner louvers are made of? I have a crack in one that I need to repair.
Anyone have experience with fixing these and can recommend a kit or supplies to do it?
Thanks
Greg

 

[9secRR]

i used JB weld to fix mine. sanded it afterwards and painted them