[Rebel1]

Great advice Gav...first step is to chat to the fella who is going to blow the final coats.

ask him:
1. What brand of paint he will use
2. What primer/surfacer systems he prefers you to use.
3. Check his recommendation against the paint manufacturers recommendation.
4. Any discrepancies discuss with the painter.
5. Don't guesstimate the ratios, use measures.
6. Make sure you use a compressor capable of keeping up with the gun.
7. Use better than average air drying systems/filters.
8. Use the right size gun tip for the paint your using.
9. Practice your wet on wet spraying technique.
10. On sanding primers/surfacers use a guide coat.
11. When sanding use a pad or block. Don't use your bare hands.
12. Make sure you have adequate ventilation in your spray area. Use a air supply hood if possible.
13. Use disposable outer overalls and no loose clothing which may hang onto your job.

Finally, ask the painter what he wants to receive. ie. Does he want a sanded car ready for base coat or does he want a car with an unsanded finish for him to finally finish prior to his base coat. ie. he may identify some areas needing extra attention.

Be very careful as this stuff is dangerous.... especially the catalysts, they contains isocyanates and can be absorbed thru the skin.

Frankly, I have seen many excellent paint jobs where the prep work was done by owners then some when the whole job was done by a professional. Mind you...I have also seen some shockers done DIY without a pro involved.

cheers