Tremco SG556 General Purpose Silicone Weather Seal
Sealing & Bonding Products

Tremco SG556

SG556 is a single-component, neutral curing, medium modulus silicone sealant with excellent mechanical resistance and weathering capabilities and good adhesion to most porous and non-porous substrates. SG556 is a general purpose weather sealant designed for use in curtainwalls, facades and perimeter joints.

Packaging: 300ml cartridge or 500ml foils
Colour: Black, white, mid-grey and bronze

Joint faces should be clean, dry and free from dust, oil, grease, old sealant and any traces of contaminant which may affect adhesion. Any previously applied sealant must be mechanically removed. Movement joints should be back filled with a foam backer rod such as FGT BR135 in order to control the depth of sealant and prevent three-sided adhesion.

Please see data sheet for more information. Please do not hesitate to contact us for further information, pricing or to discuss your sealing & bonding requirements.

  • Excellent adhesion to most construction materials
  • Outstanding resistance to UV and weather conditions
  • Excellent elongation and recovery
  • Low odour
  • Easy to handle
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