varnishing problem please help!?
befor applying i sand the wood fine. i want to know how to do it to finnish without bubbles and how long does it take surface to dry and not be sticky.
thanks a lot.
Answers:
Like some of the guys said bubble will occur if u shake instead of stirring the varnish. Also if you sanded the wood did u clean it with tac cloth which will remove the dust particles. And don't thin out varnish or polyurethane unless ur spraying the material with a spray equipment. It also seems like u did not put any stain on the wood prior to the varnish finsih, stain is what u need for color and the depth of wood grains. Now if u don't put any sanding sealer deeper wood grains will get lot darker, and if u do apply the sanding sealer prior to stain then u will get almost an even color finish, and slight darkness to the deeper wood grains. Once it is dried then u apply the varnish by roller, I recommend like a 1/4" nap and apply like 2 to 3 coats. Between coats use a higher number grits sand paper, maybe start off with like 220 after ur 1st coat of varnish and after 2nd use 400grit before final coat. If ur only going to do 2coats then use 320 after ur 1st coat.
After u've applied the varnish make sure u put it away where there are no particles flying around this will make it rough again.
Other answers:
It sounds like it is too humid for the project right now...that's why it won't dry.
you will have to apply a light stain to make the grains pop out first.
Apply the varnish in super thin coats and let dry 24 hours between each, longer if Hot or humid. Keep away from all wind or you will get streaks and contaminants. And do not shake or stir or constantly squeeze exess off your brush...it makes the bubbles of air.
It sounds like it is too humid for the project right now...that's why it won't dry.
you will have to apply a light stain to make the grains pop out first.
Apply the varnish in super thin coats and let dry 24 hours between each, longer if Hot or humid. Keep away from all wind or you will get streaks and contaminants. And do not shake or stir or constantly squeeze exess off your brush...it makes the bubbles of air.
You might be using too much thinner too. I usually don't thin varnish but use it at the consistency as it comes out of the can.
There are different types of varnish. Make certain you are using a product that is intended for the outcome you wish. There are varnishes intended for indoor use; and outdoor finishes; and there are clear finishes and satin finishes etc.
If you are wanting a clear deep looking finish, use several light coats as suggested by others. Make sure to use a 0000 or 000 steel wool to rub lightly between coats after each has dried completely.
Good luck
To keep out the bubbles; don't shake the container. Shake paint, stir varnish. Drying time can be altered by humitity or poorly mixing the varnish.
Do not thin the varnish. if it gets thick use boiled linseed oil to thin it a bit but do not over thin. The bubbles come from shaking the can but also from brushing excess varnish off your brush. Put some varnish in a larger can. When you dip your brush gentally shake the excess varnish off instead of brushing it off the edge of the can. When you brush it off the edge you'll see a bunch of little bubbles form on the top of the varnish. Also use a good natural bristle brush.
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You could also experiment with other finish coats. Some of them produce nice results and you may prefer the look. My favorite is Polycrilic, a water-based polyurethane, by MInwax. Because it has no oil, it does not amber (turn brown) with age. It is easy to apply, and clean up is simpler, because it is water based.
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