Builders' Forum |
|
↓ Scroll to Last Comment ↓ | Forum Guidelines | Builders' Forum | ![]() |
I am woefully behind with refinishing my boat which, came to my attention when I noticed a sizable bubble in the varnish. That has since popped. There is also some varnish raising along the edge of the deck and some places where you can see the weave of the glass (perhaps with some bubbles along the keel) under the varnish. This was a pygmy boat build using their supplied Systems Three epoxy. I am wondering about best practices for prepping and re-varnishing the surface. Anything extra that needs to be done for the areas of raised/peeled varnish and/or the areas where the weave of the glass shows white or has bubbles underneath? Guidance and advice much appreciated! Thanks
Photos:
https://postimg.cc/gallery/dFPMCBN
2 replies:
RE: refinishing boat
A gentler option for removing the damaged varnish is to wet sand with #400 paper. it's quieter, generates no dust and is less agressive. With wet sanding it's possible to remove only the damaged varnish and leave the underlying epoxy intact. The orbital sander with #80 has an excellent chance of destroying the finish and damaging the wood.
With Interlux Schooner varnish I can tell whether I'm sanding varnish or have reached the epoxy by the feel of the sanding block. If I'm still sanding varnish it feels almost soapy. When the soapy fell stops I'm down to the epoxy.
Laszlo
RE: refinishing boat
» Submitted by againstcache - Wed, 8/14/24 » 10:34 PM
Bubbles in Varnish: These may be caused by trapped air or moisture. Once popped, they often leave behind a rough area that needs to be addressed.
Raised Varnish: This is usually caused by moisture or contaminants. It often appears as bumps or rough patches.
Visible Glass Weave: This indicates insufficient varnish coverage or potential issues with the underlying epoxy.
Removing Damaged Varnish
Fixing Weave Visibility and Bubbles
Preparation
Applying Varnish
You can get some tips here: https://www.resinobsession.com/resin-frequently-asked-questions/tiny fishing-resin-troubleshooting-tips/