3M 540 - 3M Scotch-Seal Polyurethane Sealant  
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3M 540 - 3M Scotch-Seal Polyurethane Sealant

One-component, moisture curing product which forms permanently elastic bonds. This low modulus product is ideal for many general purpose sealing applications. Bonds to a wide variety of materials including plastics, FRP, SMC, aluminum, steel, coated metal, and wood.

Solids Weight (Approx.) 0.9 
Flash Point (Closed Cup) 136°F (58°C) 
Consistency Mastic 
Color (Dry) Black & Gray 
Application Method Hand or pressure caulk 
Cure or Dry Time 24 hours (3/16" dia. Bead) 
Service Temperature Range -40° to 194°F (-40° to 90°C) 
Restrictions None 

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Discounted Price Shown
QtyUnitDescriptionColorItems/
Case
QtyPrice/
Each
Price/
Case
 
UPC: 21200415951 Weight: 11.5 lb
Case10.5 oz cartridgeBlack12Each$11.00$132.00
UPC: 21200415944 Weight: 11.2 lb
Case10.5 oz cartridgeGray12Each$11.00$132.00
UPC: 21200490545 Weight: 11.2 lb
Case10.5 oz cartridgeWhite12Each$11.00$132.00