DOWSIL™ 785 Sanitary Silicone Sealant

A one-part, gun applied, silicone sealant specifically designed for the sealing of sanitary fittings, including baths, showers, sinks, urinals and ceramic tile joints.

No primer is required on most glazed surfaces, including vitreous enamel, ceramics, porcelain, glazed tiles, etc. For acrylic baths, it is recommended that an adhesion test is carried out. Adhesion to plastic and metal surfaces can be improved by using a DOWSIL™ brand primer.


  • Fungus and mildew resistant.
  • Bacteriostatic sealant.
  • Gloss finish.
  • Conforms to ISO 11600-F-20LM.
  • Resistant to ozone, ultra-violet radiation and temperature extremes.

Health and safety:

Not hazardous according to article 31 and Annex II of EU REACH Regulation and its subsequent amendments.

General information


Fungus and mildew resistant

Bacteriostatic sealant

Gloss finish

Conforms to ISO 11600-F-20LM

Resistant to ozone, ultra-violet radiation and temperature extremes

Uniclass 2015

Pr_30_31_76_77 Silicone construction joint sealantsPrimary


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Specification data - Silicone construction joint sealants

Product Reference

DOWSIL™ 785 Sanitary Silicone Sealant


Bahama beige


Manhattan grey


Standard product features


- At 23°C (73°F) and 50% RH:

  • Application temperature: 5–40°C.
  • Specific gravity: 1.02.
  • Extrusion rate: 220 g/minute.
  • Skin-over time: 14 minutes.
  • Cure rate (1 day/ 3 days): 3/ 5 mm.

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