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Lacquer Coating Problems

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Forum topic by Richard Anthony Charpentier posted 10-27-2015 02:30 PM 439 views 0 times favorited 2 replies Add to Favorites Watch

10-27-2015 02:30 PM

Topic tags/keywords: lacquer finish coat spray walnut ml campbell marks blushing finishing spray gun question tip resource help

I keep finding these marks on my final coat of spraying Lacquer. I’m using ML Campbell Magnalac. I have no idea what is the cause of these odd defects or how to fix them. Has anyone ever seen this issue?


2 replies so far

View Daruc's profile

Daruc

459 posts in 597 days


#1 posted 10-27-2015 03:21 PM

Looks to me like you didn’t get all the sanding dust off in between coats.
Everybody will tell you that you don’t have to because it melts it back in, but it doesn’t always in my opinion.
My motto is, If it’s not there it doesn’t have to melt back in and isn’t a problem.

It may be something else but that’s my opinion.

How many coats are on it?
Did the problem arise after the first coat, or was it there from the beginning?

-- -

View HerbC's profile

HerbC

1592 posts in 2324 days


#2 posted 10-27-2015 04:17 PM

May be a form of blushing, where moisture is trapped under the surface of the lacquer.

Get some lacquer retarder and mix up a bit of lacquer with it, coat the affected areas.

Behlen sells an spray can with “anti blush” which works well.

Good luck.

Herb

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

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