Spray Painting

Credit to member @dan-ep70 for this thread from another website!!

Prep:
sand the bumper down starting with 80 grit sand paper to take the most of it off, then move to 220 and then to 400 to remove any sanding marks. (Make sure to use wet and dry for the 220 and 400 and use it wet) Make sure to get into all areas and corners of the bumper.

Priming:
Mix up the primer to hardner to what it says on whichever brand you are using, i tend to use Max Meyer or Upol. Give it a misting coat first and let it dry. Then give it another coat covering more of an area to what you did the first time. Finally give it a coat to cover the lot. Let the paint cure completely.

Rubbing Down:
Get an aerosol can and give the bumper a misting of paint and let it dry. Using 600 sand paper (wet and dry using it wet) Rub down the bumper to take away the misting of the aerosol can you just used. the aerosol can was just a guide to show you where you did not rub down. Be careful not to rub too much that you will take away the primer.

Painting:
Mix your paint appropriately...
Waterbased - if there is no water already added to thin the paint then add between 15 to 30% and stirr it up (how much water you add is up to how fine of a needle is used on your gun). Paint similar to priming - 1st coat is misting, then cover a little more and finally over the lot. Remember to do your edges first. To dry Waterbased paint a movement of air is needed not heat, you can use the spray gun to move the air around the piece but be careful not to move the paint.

Solvent based paint - Some solvents require hardener some dont its best to check with whoever mixed the paint. If it does require hardener check on the tin/jar how much and stir really well. If it doesnt require hardener just thin it a little approx 10-15% again it depends on how thin the needle of the gun is and spray the same as above. Heat is required to dry this properly tho or a long period of time.

Laquer:
Mix the laquer as described by the manufacturer and thin accordingly using thinners... It takes very little thinners to thin out laquer. Again mist the first coat and do your edges and cover more with the second and finally cover it all, after you cover it all, I suggest you wait a little while letting it slightly cure and give it another coat. Heat is needed to cure this completely.

Final rubbing down:
After the laquer is completey cured, use 2000 grit Wet and dry sandpaper to rub it down make sure its used wet. After some light rubbing dry off your piece and you will see any high spots in the laquer, it will be like white sanding marks on it. Rub it all down until your laquer is flat. Dry and wash the piece and dry it again. Rub some cutting compound into it with a spray of water to get rid of the white sanding marks and finaly T-cut and Polish it.

ha ya got to it before me, atleast you had the decency to say i done it

Couldn't take credit for someone else's work! Keep it up!

thanks lad, that kind of my specialty but if i have anything else it post it up