There’s quite a bit to think about when working with wooden surfaces. Aside from surface prep work and choosing the right product, there are also possible defects to think about such as tannin stains and moisture blushing. For the latter, thankfully there’s Boysen Lacquer Flo. Here are tips from Boysen’s experts to keep in mind when working with it.

Use It to Prevent Moisture Blushing

Boysen Lacquer Flo: Tips, Tricks, and Advice from Experts | MyBoysen

When using lacquer-based wood varnishes, there is a possibility that you encounter a defect called moisture blushing. Moisture blushing will look like a milky-white film on the varnished wood—that’s not good when what you want is a flawless finish. It happens when moisture gets trapped and condensates in a coated surface. This is most likely to occur when the weather is humid, wet, or cold.

With moisture blushing, prevention is better than cure. To remove moisture blushing on your wood, you will need to sand the area. Doing so will remove the clear coating already on it, and if you used a stain, there’s a good chance this will come off too.

Now you have a spot where the bare surface is exposed and the color is different from the rest. You’ll need to start from scratch and revarnish your surface all over again. Save yourself the hassle and prevent moisture blushing in the first place with Boysen Lacquer Flo.

Follow the Ratio and Mix Thoroughly

Boysen Automotive Lacquer: Tips, Tricks, and Advice from Experts | MyBoysen

Boysen Lacquer Flo is an additive that slows down the drying process of lacquer which then helps lessen the moisture that gets trapped within the vanish. To use it, you have to mix it with a lacquer product like Boysen Clear Gloss Lacquer or Boysen Automotive Lacquer. You cannot use it on its own.

Mix in Boysen Lacquer Flo at 10% of the volume of your chosen lacquer product. For example, if you have 1 liter of Boysen Clear Gloss Lacquer, you’ll add a maximum of 100 mL of Lacquer Flo.

If you’re using Boysen Automotive Lacquer, note that you will need to add thinner too. So, if you have 1 liter of Automotive Lacquer, you’ll need to mix in 1 liter of Lacquer Thinner (which is a 1:1 ratio) first. Your mixture will then be a total of 2 liters. To this, add 0.2 liters or 200 mL—which is 10% of 2 liters—of Lacquer Flo. After that, you’re ready to use a spray gun to apply the mixture.

Remember to mix thoroughly before spraying.

For Interior Surfaces Only

Boysen Lacquer Flo: Tips, Tricks, and Advice from Experts | MyBoysen

Both Boysen Clear Gloss Lacquer and Boysen Automotive Lacquer are products for sealed wood surfaces like cabinets, doors, and panels, and are recommended for interior surfaces only. Like the two lacquer products, Boysen Lacquer Flo is also only for interiors.

Applying products that are interior-use only to exteriors can lead to the faster degradation of the coating. Try not to expose these to too much sunlight either even when painted on interiors. For Boysen Automotive Lacquer, exposure of the paint to UV rays may cause the binder, which is one of the paint’s components, to degrade. This leads to paint problems like flaking.

If you’re having trouble, remember you can always hire a professional for help!

Want to learn more about Boysen’s lacquer products? Check out the Boysen App which has the product guide and technical info for all of Boysen’s products.

If you have any questions or inquiries about Boysen products, our technical team will be happy to assist you. Send an email to or call (02) 8363-9738 local 413 to 418 during office hours for a one-on-one consultation.


Jill is a writer on a continuous journey to learn about paint and share them with you, the reader. She has an interest in the technical side of things but also thoroughly enjoys playing with colors. She likes calm greens, quiet blues, and mellow yellows best.

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