finishing fungus

[hayu]

When I finish polyurethaning and the projects dry I have been getting something like a white fungas. Does anyone know what I'm doing wrong? It doesn't happen to everything only the one's some one wants. Thanks.

[Oges]

Must admit I had thoughts of you applying finish to a mushroom when I read the subject title

 

Not sure what could be causing that, but you might find some useful tips here

 

http://woodworking.about.com/od/finishing/p/polyurethane.htm

[Travis]

I think humidity can cause some white spots on the finish. Especially if it rained recently. Don't know if that's the case or not.

[grampa]

I agree with travis, if its a white bloom across the wood then the wood was damp or your shop was cold, Mind you if you start cutting mushroom patterns they will look great ........Paul

[hayu]

Humm I don't know if dipping a mushroom in poly would prevent this or not. A friend brought some stuff over that they finish basketball courts with that he had left over. I think dipping the mushroom in that might preserve the mushroom. When the mushroom dries I'll set it on the shelves I use to dry things on.

 

I'll try putting somethings to dry on top of a fridge, it's hot and there should be a lot less humidity.

 

Thanks all.

[inspirations]

When I finish polyurethaning and the projects dry I have been getting something like a white fungas. Does anyone know what I'm doing wrong? It doesn't happen to everything only the one's some one wants. Thanks.

what do you clean your brush with

[jjammo1]

Maybe due to the shop temp. The can should be at least room temp 72. or better. When I go out to my shop and turn on the heat, I place my spray cans in front of the heater to warm them up. ( NOT TOO CLOSE, NOT TOO HOT) Just warm them up before you start using them. It might do the trick. I think the colder temps might separate the ingredients. But then again I might be wrong, worth a try.

[Lastchance]

Are you stiring your stain and clear finishes?

 

I notice a lot of white fog looking stuff at the bottom and sides of my cans when I do not use them for a while. (cheap home depot type stuff)

 

I do 007 in reverse. Stired not shaken using a wood stick. I stir slowly for several minutes before I begin. if its a big project I stir often as I move through the project.

 

Seems to cure that smoke challange when it hardens.

 

Just my 2 cents

 

Chance