Need help painting Overspray problem
Need help painting Overspray problem I have started painting some old car parts lying around in the garage because I start to take automotive painting classes this fall and wanted to practice prepping, painting, and so forth. I had painted small stuff before, but now that I am painting larger things, such as an old junked car, I am finding I get overspray, not through tape or on windows or anything, when I get to the clearcoat, let's say I'm spraying the door. The clear goes on the door fine and then I get to the fender and the mist falls on the wet clear on the door on the last coat and gives it a rough looking texture. Should I paint one panel at a time by blocking off the other panels (actually just clearing one at a time would be necessary? Or am I doing something wrong? Thanks for any help guys. I did sand to bare metal and scuff the metal and use an etching primer (same brand as the paint). Also I tried to spray can a door hinge and got the same overspray problems just for fun to see if I could do any better.
Registered User
Joined: Jun 2010
Posts: 18
Likes: 0
airflow is a big issue but you can also get this if your hardener is too fast make sure you are using the correct speed reducer/hardener for the temp and size of the job. i know ppg 4000 and 3000 clear coats use the dch3075 dch3085 and dch3095 hardener and you go by the temp of the air to pick the speed. higher temp hardener the longer the clear coat stays open allowing the overspray to melt back in. you will always get speckling if you cant get the air clear.
I'll get the name of the guns in the morning, locked up in the building. Just bought em as a starter set at a local body shop for like 150 dollars for like 3 guns so nothing fancy. Trusted the guys at the paint store to give me all the right stuff, but I can let you all know tomorrow what they gave me when I go unlock my booth. The airflow I believe is my problem. I heard a good paint booth will suck all the remaining particles in the air out. It just makes me weary of my skills, I know I haven't even started school yet for it, and I'm sure they will be able to help me figure out the problems as well. Just I know a few people around here who paint in their car garage and do great paint jobs and I have a booth and possibly having air flow trouble
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Teching In
Joined: Apr 2007
Posts: 15
Likes: 0
Welcome to the painting business. Sometimes when doing a side of a car or an overall paint job you have to walk the whole side. Not the quarter,then door, then fender, as with the hvlp you will get dry on the quarter when doing the doo and dry on the door when doing the fender. So one way to spray is start at the bottom or top depending on the job and do the whole side from bottom to top. Hope that helps, also like stated earlier slower drying clears and reducers,
