Pigmented resin cast

Trying out a polyurethane pigment to colour resin casts.I got this one fron Tiranti.Its black and I wanted the casts to come out grey but looks like I added too much pigment (think I added about 2%).Probably need less than 1% of pigment to resin.

New silicone rubber

Trying out a new silicone rubber from DWR plastics
RTV Silicone Moulding Rubber 6.18kg kit
Shore Hardness: A 28 *Medium*, Catalyst : Purple,
Cheapest silicone rubber I have bought yet-cheaper than Tiranti and Tomps.Seems good.One thing I did not like about Tomps was the blue catalyst turned whatever you were casting blue too.This one doesn't.Its a pale purple catalyst that doesn't leach any colour on to your castings.
I made a waste mould using it for Ian...

Took the soft Chavant as far as I could and made a TMS wax cast from it and started refining...