Tiny pinholes in varnish coat

I just finished the second coat of varnish, using Schooner varnish.  First coat looked great. Wet sanded with 400grit paper.  Next day I put on the second coat and when it dried the deck was full of tiny little pinholes. Not sure why this happened. Has anyone had this happen and how do I fix this and make sure it doesn't happen again. 

 


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RE: Tiny pinholes in varnish coat

I had a similar experience recently when varnishing (using Schooner varnish). The first coat was great, but when applying the second, with an expensive brush for varnish, many tiny bubbles would appear as I brushed it on.  Not sure if this is the same as the pinholes you have.  I solved my problem by purchasing a bunch of foam brushes, the ones where the wood dowel handle goes down into the foam.  These cheap brushes were very good at applying the varnish.  I got the idea from reading this fellow's article:  http://www.clcboats.com/shoptips/boat-paint-varnish-finishing/varnished_kayak.html

I hope this is helpful   

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