: My kayak is in need of a serious rehab. I would like to sand off
: most of the epoxy and give it a few fresh coats to fix some deep
: scratches and dings.
: My question is: do I need to sand all the way down to the weave of
: the glass? Is it enough to just get rid of most of the varnish
: and scuff the old epoxy? What about deep scratches and dings?
: Will fresh epoxy stick to small areas of cured varnish?
: Thanks,
: Matthew
As Malcolm says, if you are adding epoxy, you really want to get rid of the old varnish.
I'd be inclined to use a good chemical stripper; I hate sanding varnish/paint.
If there was still some texture showing from the fabric weave, a scrub brush can help.

Make sure you get the stripper rinsed off before you epoxy.