I note you state add pigment to part A of Water Clear Polyurethane Casting Resin. What is the downside of adding it to part B in error please?

Hi Ray,

As Warren said, the amount of resin base in the pigments is very small which explains why you've not encountered any curing problems. If it seems to be OK on this occasion then I don't think there's too much to worry about. In future, switching to Part A when pigmenting in advance will give you peace-of-mind.

Kind regards, Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales