3M Waterbased Sprayable Protective Sealant 320

Product code: 3M 320

Manufacturer: 3M

Package size: 5L/ 20L

Shelf Life: 24 months

3M™ Waterbased Sprayable Protective Sealant 320 forms a durable, highly flexible waterproof membrane that seals small cracks and joints while protecting worn painted surfaces.


  • Water-based, acrylic protective sealant
  • Excellent corrosion resistance
  • Seals large surfaces as a water barrier against leaks
  • Bonds well to steel, aluminum, and concrete surfaces
  • Good UV resistance for lasting durability
  • Exceptional flexibility remains pliable across a broad range of temperature


  • Cost effective repair and refurbishment of metal exteriors
  • Mobile offices, shipping containers and rail cars
  • Bus Assembly
Property Value
Tensile Strength 2.9 MPa
Elongation at Break 250 %
UV Resistance >1000 h
Solids Content by Weight 60%
VOC 3.9 g/L
Appearance Smooth Paste

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