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Joined: Feb 2002
Posts: 31
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2002
Posts: 31 |
I'm using DuPont Centari Acrylic Enamal to paint my car. My question is how long does the paint have to cure before I can color sand. Is it the three months like it is before you can wax? Thanks :eek:
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Depends on how it is applied. Did you (or are you planning to) use catalyst? If so then color sanding can occur in a day or so. If not then it takes a up to a few weeks. Depends on ambient temperature on cure time uncatalysed. Use the catalyst. Makes a better job overall.
How Sweet the roar of a Chevy four!
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Joined: May 2002
Posts: 3,578
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: May 2002
Posts: 3,578 |
I just painted my fire wall and ended up with lots of orange peel,I am useing a 2 part system useing a catalyst,Iam pretty sure my gun was improperly ajusted,its the first time I've used a gravity gun.I know it should be set at 10 p.s.i.chef - 
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Joined: Feb 2002
Posts: 31
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2002
Posts: 31 |
Yes, I used a catalyst. Thanks for the info.
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
chef-chevy,The instructions for my HVLP touch-up gun say orange peel is caused from gun being held too close to the panel. 
Gene Schneider
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Joined: Dec 2001
Posts: 326
Backyard Mechanic
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Backyard Mechanic
Joined: Dec 2001
Posts: 326 |
Could also be to thick paint or to little air pressure ,Try a little more pressure always gauge it at the gun ,some have a regulator on the gun . Make a couple dry runs on some scrap metal to find your trouble . those type guns will spray a nicer pattern with a little more pressure,but you will get more overspray.Good luck
woody
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Joined: May 2002
Posts: 3,578
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: May 2002
Posts: 3,578 |
I also think I have the gun set to spray too much material.I'll tell you it is no fun sanding off $75.worth of paint...Live and learn...I'm useing my larger HVLP gun,my detail gun (same type)sprays very nicely,all in the settings???chef-
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Joined: Dec 2001
Posts: 326
Backyard Mechanic
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Backyard Mechanic
Joined: Dec 2001
Posts: 326 |
With a HVLP gun it will put more paint on than you think due to the fact that there is little overspray ,its all on the car. Always make a test to check your pattern finish and paint buildup it will save time and money.I learned that when I started painting in 1957 .Try a little more pressure than what the EPA recommend you will find all the pro painters do this when no one is looking, its not legal in some states but it works, make sure the paint is thin enough and use the right thinner for the temp. 
woody
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