Laquer blushing - Woodworking Talk

MinConst · 08-22-2007, 11:30 PM

I've been getting back into furniture repair and since I moved to Florida the humidity is killing my sanding sealer. It blushes horribly. I'm working out of my garage shop and have no air conditioning in it. I am use to Mohawk products, and their sealer is prone to this. What can I do to overcome this issue? I have seen a product in Mohawks catalog that is suppose to remove the moisture from the product after the sealer is applied but don't know how well it works.
Any help??
Thanks

cabinetman · 08-23-2007, 04:26 AM

See if this thread helps.

MinConst · 08-23-2007, 08:33 AM

I thought I saw this mentioned before right after posted it. I work with spray cans not guns. Mostly touch up work but I do need to do a table top this coming week. I will try the Mohawk product to see if it helps. I might even go with a urethane product. Not sure yet. I need to PU the table today. I will see what it looks like and if I can change the finish for the top.

cabinetman · 08-23-2007, 12:08 PM

You might want to try a water based polyurethane. No blushing!

MinConst · 08-23-2007, 08:09 PM

I picked up a couple of cans of No-Blush today and did the table. It worked. No blush after the sealer and no blush after the satin. I'm happy. Thanks for the help.

Peter Bosse · 08-24-2007, 05:22 AM

Just a quick word: Finishes that are advertised and/or sold as "water-based" are not, in fact, water based. They are "water borne".

~ Peter

cabinetman · 08-24-2007, 10:22 AM

Quote:

Originally Posted by Peter Bosse

Just a quick word: Finishes that are advertised and/or sold as "water-based" are not, in fact, water based. They are "water borne".
~ Peter

Just a quick word about finishes. Finishes that are advertised and/or sold are identified by the "base". The most popular and ones pertinent to woodworking are:

Alcohol - Shellac
Acetone - (lacquer thinner) - Lacquer
Mineral Spirits - (paint thinner) - Oil Base
Water - Water based finishes - paints and topcoats

The reference to "base" includes the chemical for its reduction and cleanup. The reference to "water based" products as "waterborne" is used in the description and in marketing.

Descriptions for the usage of that terminology for example are here, and here.

The common usage for "waterbased finishes" is more widely used than "waterborne". The chemical characteristics of it's properties lends to the use of the term "waterborne" which can be read at this Rocklers site.

This is a little like hair splittin'.