How Much Lacquer Thinner to Add?
From the original questioner:
I use a low end HVLP 1.4 nozzle gravity gun. I have a regulator in the spray room set at 60psi and about half that on the gun. I donít have a #4 viscosity cup.
From contributor F:
Use the ML Campbell lacquer thinner recommended by the tech sheet. Use as much as you need to thin your material out so that it sprays right. You may not get the hiding power that you would expect with the material only reduced 0% to 10%, meaning you might have to lay down additional coats, but that's the price you pay when you choose spraying equipment such as yours. Lay down additional coats and don't worry as long as your total coating weight (dry film thickness) is between 4- 5 dry mils.
The recommendation from the manufacturer about reduction quantities is based on VOC's and not on how your coating will perform. Your coating will perform as advertised if the total thickness is between that 4-5 dry mils and you haven't become a finishing maverick by venturing outside the recommendations from the tech sheet (other than varying the amount of reducer to suit your spraying needs).
From contributor R:
You can thin MagnaMax Pigmented to 30-35 seconds using a Ford #4 cup - MLC Standard Lacquer Thinner or Care Redcer. If you don't have a viscosity cup get one from your MLC distributor. They should have one and will make it easy on you to get a nice finish. Contributor F is correct, you don't want to over thin your products for hide, coating thickness, labor, etc.
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