Applying clear Varnish to wood?

Question

A carpenter did my dinner table,it seems like he didnt do the clear varnish enough or evenly! Want to do it my self,dont want to bother and take it to him again! Do i need to sand it down again some what or can i just shoot the varnish right over again with a spray gun? If i have to,what grit? 1 more thing,i want to give it 3-4 more coats,do i need to sand every time i give it a coat?

Answer 1

if it wasnt done evenly as you said then you will have to sand to get it even. as for the grit it depends on hwo uneven it is. if not too bad use a fine grit

Answer 2

What I would do is give it a good sand with a rough grit to get rid of any uneven look.  Then give it another coat of varnish.  In between each coat use a finer and finer grit of sandpaper.  I would not give it more than 3 coats.  good luck

Answer 3

The most important thing is to find out exactly what type of varnish/poly he used..we have many that are water based and many that are a solvent base..if you put a different base over it, it will very likely peel on you...Simply call him and ask what type and brand he used for you want to do another coat or two..once this is found out..then lightly sand it, then dust it off then recoat as you wish...Do not take a chance and use a different incompatible product..also do not shake varnish/poly to mix you will create air bubbles in the finish..gently stir it with a stir stick untill mixed

Answer 4

Actually you could sand it down to natural - paint a clear filler  on it and then after that dries put one coat of varnish - let it dry thoroughly.  Then discuss with someone at the aint and varnish store, before you add another coat.

Answer 5

it is hard to smooth a bumpy varnish coat...but sanded will help...down to 180 grit.  would used 220 grit betweedn coats and use a tach cloth to pick up all the dust.  should look well.  if you want a freat finish use rotten stone and oil between coats...lots of hard work though.