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3M™ Polyurethane Construction Sealant 525

UPC#  00051111075357    Part Number  62528239304 00051111075357    3M Product Number  525 GRAY     
3M(TM) 525 Polyurethane Construction Sealant
3M(TM) 525 Polyurethane Construction Sealant
3M™ Polyurethane Construction Sealant 525 is an adhesive sealant which cures to form a flexible and resilient bond with very good adhesion on most materials. ASTM C920 Compliant, Construction Specification: Section 07900 Joint Sealants
  • Excellent for concrete sealing
  • Very pliable/flexible
  • 90 plus minute skin time
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Used for creating flexible seals on heavy and light precast panel expansion joints, wood, aluminium and PVC.


Application MethodHand or pressure caulk
ConsistencyMedium paste
Consumer LabelNo
Container Volume600 ml
Cure Rate>3 mm/24 hr
Elongation>600 Percent
Hardness25 Shore A
IndustriesConstruction, General Industrial
Modulus at 100%75 Pound-Force Per Square Inch
Product FormPack
Skin Time90 - 150 Minute
Solids Weight Percent (Approximate)90 Percent
Tack Free Time90 Minute
Tensile Strength400 psi
Volatile Organic Compounds (VOCs)35.1 Grams Per Litre