[landsbro]

Yepp,that's true have a bunch of containers with dried hardener..
it can be little tricky too,,it can look OK but still be bad,,,
when you mix the clear with the hardener and stir it should look like water
(clear) if the mixture get little milky/muddy in color the hardener is bad.
i use to keep it in metal containers with a lid but found that it last longer if
i keep it in a empyt thinner bottle,
/kimmo