Should I Use Polyurethane Mold Rubber or Silicone Mold Rubber? Each option has advantages and disadvantages and there are a wide variety of options in each of the product lines themselves
Specialty Resin & Chemical Cast-a-Mold 30TF (16 oz), RTV Liquid Silicone Mold Making Kit
Body Casting Tutorial: Hydrogel Mold & Cold Cast Bronze Casting
Basics of Mold Making Tutorials by Smooth-On, Inc.
Liquid Silicone Rubber, For Mould Making at Rs 690/kg in New Delhi
WORKING WITH URETHANE RUBBER: Casting Urethane / Polyurethane Rubber in a silicone mold
Making Hollow Casts In Open Or 'closed' Moulds Davidneat, 52% OFF
Precise Polyurethane Mold Rubber For Perfect Product Shaping
Liquid Silicone Rubber, For Mould Making at Rs 690/kg in New Delhi
Silicone Rubbers: Tips for Moulding with Silicone - Antala Ltd.