I have used some Ampreg 21 for the filling and surfacing jobs on my Tri
Gear. I am not very impressed.
Already after 7 months shelf life I had the crystalisation problem and
had to heat the resin as advised by Gurit (UK). Also the resin despite
post curing goes not seem to harden as well as Ampreg 20 and this
affects its ability to sand easily.
I did mix the resin accurately and this problem was consistent. over
several mixes. What its like for structural use I don't know.
I would be interested in anyone else's experience with this product.
I must say that for the filling I'm tempted to use West Systems 105
which I understand is OK for this purpose.
Regards
David Steade
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