I mostly use Brownells. Small chunks? If it is in uncontaminated resin, just heat it up in a water bath before using. Those chunks disappear, having "re-melted". Let it cool before using.
If it is because resin has been contaminated before use with the hardener, You are SOL on remelting the "chunks". Only thing to do is scoop it out, throw the whole lot away, or use as is. Probably the latter won't make a difference in efficiency.
I've never seen it in the hardener, unless I somehow got resin in there. See above.
How do you find it difficult to mix? Follow portion directions and stir..... Are u using the regular stuff or the gel?
I've not found anything easier to use, myself.
Ditto - to all of that... Been using it for over 20 years and won't stop now...
