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alangolding25 09-18-2013 09:31 PM

Disappointment with exterior finish
 
2 Attachment(s)
Hey all
So I made a bar outside on the deck. I created the countertop out of cedar wood. I applied 6-7 coats of water based exterior varathane on it. I tested out the beer tap tonight and as you can see I had the glasses on top.
However when I took them off there was white rings on the wood where the glass was.
Is this normal , will I need to sand down the coating and redo the countertop another way?

cdaniels 09-18-2013 10:49 PM

Ever think about using a coaster?

alangolding25 09-19-2013 07:06 AM

Not overly helpful that comment! But thanks

ToolSeeker 09-19-2013 07:13 AM

Since this is outside and water from a glass did this a rain could be a disaster. I would suggest that stuff they put on bars that are like 50 coats of varnish or what they use on counter tops.

cdaniels 09-19-2013 07:22 AM

I would use an oil based spar urethane.At least three coats and keep it covered when your not using it like a grill cover maybe.

alangolding25 09-19-2013 07:30 AM

It's a water based varathane that says on the tin for exterior use only, it say it protects from sun, water etc , but seemingly not. Pain in the ass.

I'll have to strip it down and re do it

spraygunn 09-20-2013 10:10 PM

Go to Amazon.com and do a search for "white ring remover". Worth a try.
http://ecx.images-amazon.com/images/...LL._SX342_.jpg
You owe me a cold one.

ToolSeeker 09-21-2013 08:42 AM

Is it possible you didn't allow enough time for the finish to cure? Sometimes with multiple coats it takes a good while for them to cure not just dry.

DIY-Her 09-24-2013 06:35 PM

I was just going to say what ToolSeeker mentioned. How long did you wait between coats?

ToolSeeker 09-24-2013 09:16 PM

Charlie I have a question since it sounds like you have used the spar poly. I always felt that spar varnish had a big advantage over poly because as it aged and needed a redo with the spar varnish all you needed was a light sand and recoat and with poly you had to do a total strip. Now it is had to find spar varnish it is all spar poly so on a redo is it a total remove like regular poly.

cdaniels 09-24-2013 10:22 PM

Quote:

Originally Posted by ToolSeeker (Post 1246120)
Charlie I have a question since it sounds like you have used the spar poly. I always felt that spar varnish had a big advantage over poly because as it aged and needed a redo with the spar varnish all you needed was a light sand and recoat and with poly you had to do a total strip. Now it is had to find spar varnish it is all spar poly so on a redo is it a total remove like regular poly.

Of course it depends on what condition it is.I mainly have done doors with spar urethane and if they are maintained well all it will ever need is sanding and re-coating.I recently re-coated a very old pine door that was stripped and sealed with spar urethane about 15 years ago. It gets direct morning sun and we all know what that will do to an ext.door (especially here in the land of cotton).I have re-coated it every 3-4 years and all it ever needed was a sand and 2 coats of spar and it has held up great.On the other hand I have a customer that did not keep her door maintained probably 5 or 6 years had passed and when I got the call to do it the urethane was really bad,bleached out and peeling it had to be sanded totally off. Maintanace is key with any exterior clears.

ToolSeeker 09-24-2013 10:59 PM

Do you notice any difference between the varnish and the urethane in application?

cdaniels 09-24-2013 11:09 PM

The urethane has to be brushed out very quickly it drys so much faster.Spar varnish doesn't seem to last any longer here than the urethane does( maybe due to the heat and humidity?) It costs so much more and is hard to find.


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