Due to the excellent mechanical properties of the cured rubber as well as its high resistance to casting resin, TUFSIL®28 is especially suitable for reproducing parts in Polyurethane, Polyester and Gypsum Cements. Other materials, such as wax and plaster, may be cast without any problems in moulds made from TUFSIL® 28. A 20kg pail of silicone is supplied with 800gm of catalyst, which is more than the recommended 2.5%. The catalyst may be adjusted to suit your climate and processing conditions. Please test alternate catalyst ratios before undertaking large projects.Recommended for: Economical Moulding, Concrete, Plaster, Resin Potlife & Demould:Work time – 15 mins / Demould time – 6-24 hrs Hardness & Type: Shore A28 /-2 Silicone Elastomer, 30000cpsPourable, condensation-curing, two component silicone rubber that cures at room temperature and features:• Excellent Flow• Medium Shore A Hardness (approx 28)• Good Tear Strength• Great extensibility and elasticity• Excellent long term stability of the mechanical properties of the cured rubber• High resistance to casting resins
