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, 30000cps
Pourable, 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
