3M 7100197995 | 62798 50 Gallon Black Adhesive Sealant

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3M Polyurethane Adhesive Sealant 550FC 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, stoneand wood in temperatures ranging from -40 °F (-40 °C) to 194 °F (90 °C). Polyurethane sealants perform well in challenging industrial, transportationand construction settings by creating durable elastomeric bonds that seal against the elements. To keep the job moving, this fast-curing formula forms a paintable skin in only 60-90 minutes. High tensile strength, weather-resistanceand short cure time allow 3M Polyurethane Adhesive Sealant 550FC to excel in applications such as exterior panel bonding, window framingand marine manufacturing.

Works on a Wide Variety of Similar and Dissimilar Substrates

3M Polyurethane Adhesive Sealant 550 Fast Cure is part of the 500 Series one-component, moisture-curing, urethane adhesives. These adhesives create a permanently elastic bond and bond strongly a variety of substrates such as wood, fiber reinforced plastic (FRP) and many other plastics to themselves, to metal and to glass. The moisture-curing formula cures by reacting with moisture in the air or the substrate. In addition to spraying, they can also be extruded from hand held or bench mounted applicators and are primarily dispensed with bulk application equipment. These one-part polyurethane adhesives work well for bonding a wide variety of plastics including polystyrene and polyacrylic. They are also effective on a wide variety of other substrates - from aluminum and glass to plastic and wood.

Recommended Applications
  • Marine deck to hull bonding
  • Vertical and horizontal expansion joint applications
  • Concrete and masonry control joints
  • Aluminum curtain wall and storefronts
  • Door and window frame perimeters
Paintable after Skin Forms for Improved Appearance

3M Polyurethane Adhesive Sealant 550 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 adhesive 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.

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.


  • Multi-Surface Sealant: This moisture-curing adhesive sealant works on a wide variety of dissimilar substrates including wood, glass, stone, metal, polystyrene, polyacrylicand fiber reinforced plastics (FRP)
  • Flexible Bonds: Its elastomeric polyurethane formula creates high-strength bonds that are ideal for a plethora of marine, transportationand construction applications
  • Withstand The Elements: Seal hulls, windowsand door frames by forming a water-tight seal that can handle temperatures ranging from -40 °F (-40 °C) to 194 °F (90 °C)
  • Fast Cure: Fast set and cure time increases productivity, forming a paintable skin in 60-90 minutes
  • Easy to Use: One component adhesive for easy application with no mixing or guesswork
Product Specifications
Manufacturer Part Number7100197995
Adhesive TypePolyurethane
Application MethodHand or pressure caulk
Assembly TypePanel to Frame/Stiffener to Panel
Color FamilyBlack
Container Size (Inch)50.0 Gal. (US)
Full Cure Time>4 mm/24 hr
Hardness45 Shore A
Modulus at 100%87 Pound-Force Per Square Inch
Physical FormMedium paste
Product ColorBlack
Product FormGallon
Product Number550FC
Solids Weight Percent (Approximate)90 %
Substrate 1Stainless Steel
Substrate 2Painted Surface
Tack-free Time1 hr
Tensile Strength (Inch)300 psi


This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

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