[Woodcarver] help needed

[Robert Muller]

Diane Reed wrote:


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> I just did some recarving on a bark piece and had to refinish the new 

> parts. I used a coat of polyurethane on just the newly carved areas 

> and it was fine except it needed another coat to match it up with the 

> rest. Instead of using the polyurethane again, I decided to give the 

> whole piece a good spraying of satin lacquer. I sprayed it outside - 

> it is very humid here today and the cement walk where I laid out my 

> work was damp. The finish, when dry, had a white chalky coating on 

> parts of the whole piece - not just the new part. I thought maybe it 

> had picked up moisture from the sidewalk so just brought it in to dry 

> out: no change after 3 or 4 hours. Next I brushed the white spots with 

> a wire brush and most of the white stuff came off leaving those parts 

> with out any finish. Now I need to put something on it to cover the 

> rest of the white and finish the whole piece.

>

> Any suggestions on how to fix this mess I've caused?

>

> Diane

>

> You can see my wood carvings at: http://www.picturetrail.com/diane531

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Diane,

I have had a similar experience with the spray lacquers. It is usually 
the humidity. Try to only spray when it is dry or low humidty. As 
already recommended apply  a second coat. When this has happened to me 
the 2nd coat took care of the problem. Also avoid the urethane and 
Lacquer mix really are not compatible.

Good Luck

Bob Muller