This is a great thread, with some excellent information. Although I came across this thread a little late I am very happy I found it. I just recently began the repair process on my own dash, i had some pretty large cracks. I did not use the great stuff, I wish I did cause it looks a lot faster and friendlier. I used A West System Product, G flex 655 2 part thickened epoxy, for the whole job, filling the cracks and then the final skim At my job i am a west system dealer and this is their best product for hard to bond materials, and its about the only 2 part "flexible" epoxy, it is suppose to expand and contact with the dash. My repair is almost complete, I still have to block it out and paint! Fingers crossed it doesn't crack again!