The perfectly clean, perfectly grit-free spray is an elusive beast, but one prized by every industry that relies on painters. It can be frustrating when you can’t get it and don’t know the source of the issue, too. True, dirt can usually be compensated for by the correct polishing after the fact, but all of that adds to the time and economic costs of your job or hobby. Here’s some tips to help you achieve your coveted goal without the need for making do.
Prewash the goods.
Before you even consider placing the article into the booth, make sure you’ve dealt with any possible contamination with a thorough washing. It will also help you in your preparation for the spraying, so it’s not a wasted step, and will make it considerably easier to both inspect the surfaces prior to spraying and make certain that all possible particulate matter has been removed.
Of course, if you’ve been sanding the item at all, dust will have occurred. Don’t even pass onward to the masking step without washing [or re-washing] the item. If you’re dealing with paneling [say, on a vintage car] make sure to mask from the inside, so that detritus stirred on the inside doesn’t contaminate the surface. Use a good firm paper size and make the seal tight. This will also help minimize overspray and keep air flow to a minimum. Avoid wrinkles that may harbor dirt, and tape down folds if they occur.
Make sure you pre-inspect and wash the booth, too. If you’ve picked a good booth, perhaps with the help of data from Paint Booth review on the net, you should have a smooth and grit free surface, but old paint can wreck that. You should have a regular maintenance program in place to ensure the booth is kept clean at all times, but it’s worth sweeping out before use as well. You may want to wet the floor if there’s a chance of particulate rising, but it’s not necessary if good preventative maintenance has occurred.
Once spraying begins.
Be sure to blow down the panels before painting, too. Don’t rush through the preparatory steps. Make sure any folds, lines, jambs or creases are totally free of dust. Remember that a bad basecoat spray will create the effect of dirt on the panels. When you work the tacking cloth over a panel or part of the item, there should be soundless, smooth flow. If you’re not getting it, you may need a bigger gun tip, or to use a wetter basecoat.
Make sure you’re wearing a quality paint suit. Disposable suits don’t always live up to their promises, and breakaway from them can cause lint to drop into your paint. If you have a long- term suit, make sure to keep it in an environment where it won’t gather dust in storage. Try to blow off the suit before you enter the booth- and if you’re working in a team, don’t walk close to people who are sanding or creating grit before you enter the booth. Tack every 2-3 coats to make certain you’re keeping up the good work. Of course, make sure the rag itself won’t shed, too.
With a little care and attention to detail, you can have the smooth, grit free surface you’ve always wanted.