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Sealants for Industrial and Transportation Applications

View All 3M™ Adhesive Sealant Products
3M™ Polyurethane Sealants

  • Video still of the test in progress with copy “Prevent penetration of moisture between the bonded parts”

    3M™ Polyurethane Sealants

    3M™ Polyurethane Sealants provide a strong, flexible and durable elastomeric bond that seals against the elements. They excel in challenging industrial, transportation and construction applications and can be painted once a skin forms. These sealants are available in a wide variety of hardnesses, open times and colors to meet your application needs.

Polyurethane Sealants Featured Products

3M™ Silane-Modified Polymer Sealants

  • Image of a gloved hand applying 3M™ Adhesive Sealant 740 UV between a running board and a vehicle

    3M™ Silane-Modified Polymer Sealants

    When UV stability and weatherability are most important, silane-modified polymer (SMP) sealants provide a strong and flexible bond that lasts. The UV resistance of SMPs is ideal for demanding exterior industrial and transportation applications where sunlight and weather exposure can be extreme. These sealants are isocyanate-free, immediately paintable and available in a wide variety of hardnesses, open times and colors to meet your application needs.

Silane-Modified Polymer Sealants Featured Products

    • High-performance clear sealing
    • Permanently elastic for joint movement
    • 40-60 minute skin time, paintable immediately
    • High-performance sealing
    • Permanently elastic for joint movement
    • 40-60 minute skin time, paintable immediately
    • High-performance bonding
    • Permanently elastic for joint movement
    • 10-30 minute skin time, paintable immediately


Sealing Out Weather, Petrochemicals and Other Challenges


  • Benefits of 3M™ Adhesive Sealants

    3M offers a comprehensive line of adhesive sealants and sealant tapes that help define the industry standard for quality. Whatever you’re bonding and sealing – wood, metal, glass, gelcoat, plastics or fiber-reinforced plastic – 3M has sealants with the characteristics you need:
     

    • Gap Filling for rough, patterned or uneven substrates
    • Strength for bonds that need to hold firm as well as seal
    • Durability to stand up to tough environments such as weather, saltwater or UV
    • Flexibility to allow joint movement while maintaining a bond
    • Sealing to keep outside environments out and inside things in

Application Methods

Your application method will depend on your unique circumstances. Generally speaking, manual application involves little investment in equipment but with higher labor costs while automated application requires little or no labor but has high equipment outlays up front. Machine-assisted application falls between those extremes: a trained operator uses a hand-held applicator to apply the adhesive, which is forced out with the aid of a battery or pneumatic system.

  • Video still of a worker using a caulk gun to seal a series of metal panels in a metal frame
    Manual (0:31)
  • Video still of a worker applying adhesive at a bench using a powered applicator
    Assisted (0:54)
  • Video still of an automated arm-and-table mechanism applying adhesive
    Automated (1:17)

Applicators & Size Compatibility Chart

  • Video still of adhesive sealant being applied with the caption Cure Time 3M™ Silane Modified Polymer (SMP) Adhesive Sealant
    Cure Times (1:11)

    Video of polyurethane and SMP adhesive sealants with captions explaining the different open times, cure times and time to paint.

  • Video still of a cutaway view and the caption Self Leveling Formulas are Ideal for Exterior Gap Filling of Expansion Joints
    Gap Filling, Sealing, Self-Leveling (0:57)

    Video of 3M™ Adhesive Sealants with captions describing the gap filling, sealing and self leveling benefits.

  • Video still of a vertical application and the caption Non-Sag Formulas Enable Convenient Vertical Applications
    Overlap Shear Strength, Non-Sag, Bond a Variety of Substrates (1:02)

    Video showing an overlap shear strength test, non-sag on a vertical application and a list of bondable substrates.


We're here to help.
Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at 1-800-831-0658.
Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at 1-800-831-0658.