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Seal & Bond Sil 25

SEAL & BOND SIL 25 is a flame retardant single component silicone sealant, which hardens by humidity, with a fire resistance class of F90 according to DIN 4102-2:1977-09. Tested by IBMB - Institut für Baustoffe, Massivbau und Brandschutz. SEAL & BOND SIL 25 has a neutral hardening procedure and is practically odourless. SEAL & BOND SIL 25 can be used to seal expansion joints, seams, cracks and passages, ... in a constructional and flexible way. SEAL & BOND SIL 25 is fungus, UV and weather resistant.

  • Fire resistance class of F90 officially tested according to DIN 4102-2:1997-09.
  • Tested by IBMB - Institut für Baustoffe, Massivbau und Brandschutz.
  • High chemical resistance.
  • Can be used to seal expansion joints, seams, cracks and passages,... in a constructional and flexible way.
  • Adherence > 10 kg/cm².
  • Adheres perfectly to many surfaces, such as metal, ceramics, tiles, stainless steel, glass, wood, ... without a primer.
  • Anti-fungal and bactericidal.
  • Practically odourless.
Article nrNameContent
N540206Seal & Bond Sil 25 white310ml
N540306Seal & Bond Sil 25 grey310ml
N599610Novatwister1 pc.

Colour: grey and white.
Chemical resistance: resistant to water, seawater, weak solvents, oils, fats, ...; likewise to ethyl alcohol, isopropanol, chlorine, acetone, hydraulic oil, formic acid 10%, hydrochloric acid 10%, sulphuric acid 25%, phosphoric acid 5%, ammonia 25%, saturated sodium chloride, caustic soda 15%, potassium hydroxide 15%, saturated sodium chloride, ammonium sulphate 50%; not resistant to concentrated acids.
Painting: can not be painted.
Density: ca 1.4 kg/dm³.
Shore A hardness: ca 19 till 25.
Coexistence: thixothrope - firm in joints up to 40 mm width.
Skin formation at 23°C and 50 % R.H.: 8 minutes.
Hardening at 23°C and 50% R.H.  2.5 mm after 24 h - 4 mm after 48 h.
Modulus 100% elongation: 0.3 to 0.4 N/cm².
Adherence:  > 10kg/cm².
Temperature resistance: -40°C to +150°C.
Shelf life: 12 months, keep dry, cool and frost-proof.
Safety measures: consult the Safety Data Sheet.

  • because of its high chemical resistance, it can also be exposed on a permanent basis to water and humidity like e.g. swimming pools, jacuzzi, shower and bathroom applications, air conditioning systems, kitchen building, ...
  • versatile joining, bonding and sealing mass with fire-retardant features