: I use large syringes for intermediate amounts, one for resin and one for
: hardener.
: Put a small hole in the lid of the bottles that the syringe tip will seal,
: tip bottle on side or upside down in a holder, draw what is needed into
: the syringe, put bottle upright with syringe in place, empty syringe into
: cup and mix. Place duct tape on hole in lid.
: JohnK

Forgot one important point. Put pinhole in bottom of resin and hardener bottle and cover with duct tape as well. Uncover when drawing off resin,hardener.