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SKU 7100200220
Legacy SKU 62528295306
UPC 50051111080165
Catalog Number 525
Product Number 525

3M Polyurethane Construction Sealant 525 is a single-component, moisture-curing, gap-filling elastomeric sealant that creates permanently elastic seals and bonds well to concrete. Skin time in 90-150 minutes.

  • Multi-purpose bonding and long lasting seals
  • Permanently elastic to allow joint movement
  • Creates flexible seals on expansion joints
  • Skin time in 90-150 minutes; paintable once skin forms
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On it's way to you February 25  

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Minimum Order 4 Drums
Order Increment 4 Drums
  Multiple Application Use
  Superior Performance
  Global Shipping
  Industry Low Price
Product Dimensions
Imperial Metric
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Shipping Dimensions
Weight 526.76371 lb
Length 22.5 in
Width 22.5 in
Height 34.92087 in
Color Gray

PRODUCT FAQ

  1. What is 3M™ Polyurethane Construction Sealant 525 used for?

    This sealant is perfect for sealing expansion and control joints in concrete, precast panels, and other construction joints.

  2. How long does the sealant take to cure once applied?

    Depending on humidity levels and temperatures between one to seven days.

  3. Is this sealant a good choice for outdoor projects?

    Yes, it offers UV resistance which makes it a durable choice for all types of weather conditions.

  4. Does this product meet any safety standards or certifications?

    Our Polyurethane Construction Sealant 525 meets ASTM C-920 class 25 specifications subclass NT, M grade A.

  5. Is there anything special I need to do before applying the sealant?

    The surface(s) being sealed must be clean dry,and free from grease,oil etc., otherwise application will not be successful

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Creates Flexible Seals on Expansion Joints

3M™ Polyurethane Construction Sealant 525 is a single-component, moisture-curing polyurethane sealant used to seal construction expansion joints. It can seal a wide variety of materials, including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood. It creates a strong, permanent elastic bond with elongation of over 800%. It will seal a wide selection of materials, including concrete, wood, PVC and metal. This adhesive will perform in temperatures ranging from -22°F/-40°C to 176°F/80°C. Once skin has formed, this sealant can be painted to improve the final finish. Available in cartridges, sausage packs and bulk format to meet your application needs.

Recommended Applications
  • Sealing expansion joints
Understanding Polyurethane Sealants

Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Polyurethane sealants are available in a wide variety of Shore A hardness, open time and colors to meet many application needs. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges and 400ml/600ml sausage packs.

Bringing Better Ideas to the Surface through Science and Innovation

In the 3M Industrial Adhesives and Tapes Division, they apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, their technologies help customers like you deliver competitive products to the market faster and more efficiently.

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