Tremco SG555 Premium Silicone Weather Seal
Sealing & Bonding Products

Tremco SG555

SG555 is a single-component, neutral curing, low modulus silicone sealant designed for use as a weather seal in applications where a high degree of joint movement is anticipated such as in structurally glazed curtainwall or aluminium cladding. It can also be used as a premium grade sealant in general applications such as expansion joints and external perimeter joints.

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

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
  • Non-polluting, non-stain to most common substrates
  • Excellent resistance to weathering, ultra-violet radiation, vibration, moisture, ozone, temperature extremes, and airborne pollutants
  • Non-slumping: can be used in vertical and overhead joints
  • Good gunnability between +5°C and +40°C
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