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

$8.10 / Each

SKU	7000000941
Legacy SKU	62548452309
UPC	00021200490545
Catalog Number	540
Product Number	540

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, wea

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

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Multiple Application Use

Superior Performance

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Industry Low Price

Product Dimensions	Imperial	Metric
Weight	0.8762 lbs
Width	2.55906 in
Length	1.89016 in
Height	8.85787 in

Shipping Dimensions
Weight	11.00107 lb
Length	8.38583 in
Width	6.49606 in
Height	10.43307 in

Color	White

PRODUCT FAQ

What is 3M™ Polyurethane Sealant 540 used for?

3M™ Polyurethane Sealant 540 is used as a one-component, moisture-curing sealant that creates permanently elastic seals and bonds on a variety of materials such as aluminum, steel, glass, concrete and painted surfaces.
How long does the sealant take to cure?

The curing time of this sealant depends upon various factors such as temperature, humidity levels and thickness applied. Generally, it can be expected to fully cure within seven days at an ambient temperature of approximately 70°F (21°C) with normal humidity levels.
Is this product easy to apply without professional assistance?

Yes! It can be easily applied using standard caulking equipment or manual application with cartridges. Just make sure you follow proper safety precautions and guidelines provided by the manufacturer before starting any application process.

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.

SKU 7000000941 | 3M™ Polyurethane Sealant 540

UPC 00021200490545 | 3M™ Polyurethane Sealant 540

Product Number 540 | 3M™ Polyurethane Sealant 540

Multi-Purpose Sealant with Good UV Resistance

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, good UV resistance, 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

Paintable after Skin Forms for Improved Appearance

3M™ Polyurethane Sealant 540 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.

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 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.