older varnish lifting under new varnish

[Tculver]

Re: older varnish lifting under new varnish

Thanks for all of the input. I think its the top coat of varnish thats releasing. The base varnish had been on there for 10 years and was in very good condition (adhesion wise). This is only happening from the back of the hatch to the transom.

[wizbang 13]

Re: older varnish lifting under new varnish

Thanks for all of the input. I think its the top coat of varnish thats releasing. The base varnish had been on there for 10 years and was in very good condition (adhesion wise). This is only happening from the back of the hatch to the transom.

bro, yer only kidding yourself...this is not that good a varnish job ....

[Tculver]

Re: older varnish lifting under new varnish

Which one the the older one or the last one on top?

[wizbang 13]

Re: older varnish lifting under new varnish

Which one the the older one or the last one on top?

the opening in the seam, the darkness in the end of the plank,the cracks in the white stuff, the brown "putty" hiding out in there.
the old ten or 20 coats needed to come off, thus...they all are bad

[Peerie Maa]

Re: older varnish lifting under new varnish

s-l500.jpg
Time to stop talking. Find a sharp scraper, either a classic cabinet scraper or a piece of broken glass and scrape away at one of the bad spots. Gow slowly and gently.
Then you will know for certain what has gone wrong, and hence how to deal with it.

[Tculver]

Re: older varnish lifting under new varnish

Thank You. Ill give it a shot

[pcford]

Re: older varnish lifting under new varnish

For once I will agree with Whiz. All varnish will have to be removed and built up again. There was a vapor imbalance on the layers of varnish. It's a couple months of work until it is finished.
(forty years of professional wooden runabout restoration.)