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  6. 3M™ Polyurethane Sealant 540, White, 310 mL Cartridge, 12/Case

3M™ Polyurethane Sealant 540, White, 310 mL Cartridge, 12/Case

  • 3M Product Number 540
  • 3M ID 7000000941
  • UPC 00021200490545

MULTI-PURPOSE BONDING: Forms long lasting seals dissimilar materials such as plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood for increased design flexibility

FLEXIBLE BONDS: Maintains elasticity for shock absorption and long-term joint movement

PAINTABLE IN MINUTES: Forms a skin in 60-90 minutes that can be painted on once the sealant is fully cured

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Tech Data Sheet (0B)
Container Size (Metric) 310 ml
Container Size (Imperial) 10.14 fl oz (US)
Tack-free Time 1 hr
Full Cure Time >3 mm/24 hr
Surface Type Metal
Product Color White

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Highlights
  • MULTI-PURPOSE BONDING: Forms long lasting seals dissimilar materials such as plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood for increased design flexibility
  • FLEXIBLE BONDS: Maintains elasticity for shock absorption and long-term joint movement
  • PAINTABLE IN MINUTES: Forms a skin in 60-90 minutes that can be painted on once the sealant is fully cured
  • Weather Resistant: A distinct ability to excel in challenging outdoor industrial, transportation, and construction environments between -40 °F (-40 °C) and 194 °F (90 °C)”
  • EASY TO USE: Single component, moisture-curing sealant fills gaps and simplifies production

3M™ Polyurethane Adhesive Sealant 540 is a moisture-curing sealant that forms flexible, weather-resistant bonds. This single-component adhesive bonds dissimilar materials including plastics, sheet molding compound, aluminum, steel, coated metal, and wood in temperatures ranging from 40 °F (40 °C) to 194 °F (90 °C). Polyurethane sealants perform well in challenging industrial, transportation, and construction settings by creating durable elastomeric bonds that seal against the elements. High tensile strength, weather-resistance, and low hardness allow 3M™ Polyurethane Adhesive Sealant 540 to excel in applications such as exterior panel bonding, retail storefronts, and transportation manufacturing.

3M™ Polyurethane Sealant 540 is a single-component, moisture-curing, polyurethane sealant used to bond a wide variety of materials, including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood.
Commonly used in panel bonding and joint sealing applications
Multi-Purpose Sealant
3M™ Polyurethane Sealant 540 is a single-component, moisture-curing, polyurethane sealant used to bond a wide variety of materials, including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood. It exhibits high tensile strength, low Shore A hardness and low modulus to maintain its functionality in a wide range of extreme service environments. Available in cartridge, sausage pack, pail and drum volumes to meet your application needs.

Recommended Applications
  • Vertical and horizontal panel bonding and joint sealing
  • Aluminum curtain walls and storefronts
  • Transportation manufacturing (bus, rail, truck, trailer)
  • Replacement of mechanical fasteners in many situations
3M™ Polyurethane Sealant 540 offers an alternative to mechanical fasteners and can replace rivets in some applications.
3M Manual Applicator

Paintable after Skin Forms for Improved Appearance
3M™ Polyurethane Sealant 540 (PDF, 371.52 Kb) offers an alternative to mechanical fasteners and can replace rivets in some applications. It will bond dissimilar substrates and a wide selection of materials. This will perform in temperatures ranging from -40°F/-40°C to 194°F/90°C. Once skin forms (60-90 minutes), the sealant can be painted to improve the final finish.

Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements.
Choose a 3M Pneumatic Applicator for ergonomic applications
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 our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

Click here for more information on 3M™ Sealants. (PDF, 797.43 Kb)

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