Jay,
Ian said, '. . . treat the un-cured epoxy {that you are scraping} AS toxic .
.. .' - NOT that it IS 'toxic'. It is simply not the nicest stuff in the
world, and I think he means you should protect your eyes, skin, & lungs. The
same 'coverage' you would use when installing / removing fiberglass
insulation. Disposal is the same - DON'T just throw it in the can, carefully
bag it, first. The bit about rubber gloves & skin is directly related to
ALLERGIC reactions. Some people get an instant 'reaction' to things {like
'Poison Ivy'}, some never do, and others develop it at a later time in life.
With epoxy, once it does appear - it supposedly never leaves.

With the 'ratios' you got it reversed - the 'higher' ratios {like my 5-to-1}
tend toward the 'harder & brittle'. the 'lower' ratios tend toward the 'less
hard & more flexible'. ALSO NOTE - I said 'everything is relative' and my
particular project was NOT 'boatbuilding critical'. It has NOTHING to do
with boatbuilding. I consider ALL boatbuilding uses to BE 'CRITICAL'.

ALWAYS - Practice, Test, & Take & Keep Notes.

Regards & Good Luck,
Ron Magen
Backyard Boatshop

"Jay Chan" wrote in message
ups.com...
Ian Malcolm wrote:
Jay Chan wrote:

You are saying that a bit less hardener (3-to-1 instead of 2-to-1)
will
result with the cured epoxy to be a bit more flexible, . . .
SNIP
N.B. treat the stuff you scrape off as toxic and wear gloves &
appropriate protective clothing. You'll be much happier *without* an
epoxy allergy for the rest of your life . . .