Health of Mind Art pigment pastes are highly concentrated and should be used sparingly or to the desired tint level you are trying to achieve. 
HOMART pastes are sold in 50 gram containers by WEIGHT.
Please note as some colourants are thicker then others please expect variances in viscosity. If you are wanting to thin your paste down or it solidifies please add some part A (EPOXY) to it and stir in. 
Pastes should be used within 12 months.