MOULE en silicone BLOC DE BETON - brique modélisme miniature résine bricks 40k e 1:24 blocks x 8 and 1:32? blocks x 15 Silicone mould easy to release. I tried clay first but a little brittle to get out, resin is best, but a bit messy. Will take ages to make a quantity as I only use the 1 For Cement 504644 Moules En Silicone Pour Tuyaux, Peintures Et Matériaux Green Stuff World