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When to use DOWSIL 737

DOWSIL™ 737 Neutral Cure Sealant has multipurpose

DOWSIL™ 737 Neutral Cure Sealant is a multipurpose, one-part sealant used in a wide range of industrial assembly and installation operations. Here are some situations when 737 is the right sealant for the job.


  • Substitute for mechanical fasteners on large and small appliances

  • Sealing refrigerator and freezer liners (however, not FDA-approved for food-contact applications)

  • Adhering plastic moldings to plastic substrates for trim applications, decals

  • Waterproofing electrical components

  • Sealing coaxial connectors

  • Protecting instrumentation assemblies


  • Primerless adhesion to many materials

  • Oxime cure; cures at room temperature upon exposure to moisture in the air

  • Adhesion to many plastics, metals, painted surfaces, glass, and rubbers

  • Does not react with or corrode most metals or plastics

  • Fast cure - 3 to 6 minutes skin-over time; 14 minute tack-free time

  • Cures to a handling condition in 24 hours on exposure to moisture in the air

  • Will not slump, sag, or run off surfaces

  • Broad temperature range performance; cured material stays flexible from -85ºF to 350ºF (-65ºC to 177ºC)

  • 100% silicone rubber

  • Excellent weather resistance against sunlight (UV), rain, snow, and temperature extremes

Contact Lentus to order DOWSIL™ 737 by calling 270-765-2212 or emailing

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