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U-Seal 907

One-part polyurethane low modulus construction sealant

U-Seal 907 is a one-component, gun-grade, non-sag polyurethane construction sealant. It cures under the influence of atmospheric moisture to form a high-performance compound with permanent elasticity and resistance to ageing and weathering.   

Areas of Application  U-Seal 907 is a versatile and performant construction sealant for expansion and construction joints in vertical and horizontal applications, joints in precast elements, external walling and cladding joints. Suitable for metal roof and gutter sealing, bridge and balcony parapets, weatherproofing of joints between brickwork, blockwork, masonry, wood, concrete, metal, window or door frames, joints in water channels and for hydraulic general sealing with contact with water. 

Certified according to:
EN 15651-1/4 TYPE F INT/EXT CC/ PW INT/EXT CC  
ASTM C920 Type S Grade NS Class 50 Use T2, M, A, O, L.   

Compliant to:
ISO 11600 Type F Class 25 sub-class LM 
LEED iEQc 4.1; SCAQMD Rule 1168; BAAQMD Reg 8 Rule 51   
  • Bonds and seals at the same time
  • Permanently elastic; accommodates joint movement of ±50%
  • Easy to gun with excellent tooling consistency
  • Good thixotropy, non-sagging
  • Excellent primerless adhesion on all typical construction and industrial materials
  • Non-staining on concrete and porous materials
  • Good resistance to ageing, weathering and cleansing agents, sea water, lime water
  • Over-paintable with many water and solvent based paints (preliminary tests recommended)

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