3M™ Polyurethane Adhesive Sealant 550 Fast Cure

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MULTI-SURFACE SEALANT: This moisture-curing adhesive sealant works on a wide variety of dissimilar substrates including wood, glass, stone, metal, polystyrene, polyacrylic, and fiber reinforced plastics (FRP)

FLEXIBLE BONDS: Its elastomeric polyurethane formula creates high-strength bonds that are ideal for a plethora of marine, transportation, and construction applications

WITHSTAND THE ELEMENTS: Seal hulls, windows, and door frames by forming a water-tight seal that can handle temperatures ranging from -40 °F (-40 °C) to 194 °F (90 °C)

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Tech Data Sheet (PDF)Safety Data Sheet (PDF)

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Highlights

MULTI-SURFACE SEALANT: This moisture-curing adhesive sealant works on a wide variety of dissimilar substrates including wood, glass, stone, metal, polystyrene, polyacrylic, and fiber reinforced plastics (FRP)
FLEXIBLE BONDS: Its elastomeric polyurethane formula creates high-strength bonds that are ideal for a plethora of marine, transportation, and construction applications
WITHSTAND THE ELEMENTS: Seal hulls, windows, and 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

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, stone, 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. To keep the job moving, this fast-curing formula forms a paintable skin in only 60-90 minutes. High tensile strength, weather-resistance, and short cure time allow 3M™ Polyurethane Adhesive Sealant 550FC to excel in applications such as exterior panel bonding, window framing, and marine manufacturing.

Works on a Wide Variety of Similar and Dissimilar Substrates
3M™ Polyurethane Adhesive Sealant 550 Fast Cure (PDF, 371.52 Kb) is part of our 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. Our 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. Our 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

3M Manual Applicator

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.

Choose a 3M Pneumatic Applicator for ergonomic application

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™ Adhesive Sealants. (PDF, 797.43 Kb)

Typical properties

Details

Adhesive Type	Polyurethane
Application Method	Hand or pressure caulk
Assembly Type	Panel to Frame/Stiffener to Panel
Brands	3M™
Container Size (Imperial)	5 fl oz (US), 10.5 fl oz (US), 11.8 Gal. (US), 13.5 Gal. (US), 20.3 fl oz (US), 50 fl oz (US)
Container Size (Metric)	18.9 ml, 189.3 ml, 310 Liter, 310.53 Liter, 350 ml, 400 ml, 600 ml
Full Cure Time	>4 mm/24 hr
Hardness	45 Shore A
Heat Resistance	175 Degree Fahrenheit
Heat Resistance Temperature (Fahrenheit)	175.0 °F
Industries	Transportation, Construction, General Industrial
Modulus at 100%	87 Pound-Force Per Square Inch, 150 Pound-Force Per Square Inch
Physical Form	Medium paste
Product Color	White, Gray, Black
Product Form	Cartridge, Package, Gallon, Each
Smallest Saleable Unit	Each, Drum
Solids Weight Percent (Approximate)	90 %
Surface Type	Painted Surface
Tack-free Time	1 hr
Tensile Strength (Imperial)	300 psi
Units per Case	1.0, 12.0
Volume (Imperial)	50 fl oz

Resources

3M™ Polyurethane Adhesive Sealant 550 Fast Cure (Various Colors)

Safety Data Sheets

Document Number: MSDS_2587756_US_EN

(PDF)

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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.