DOWSIL™ Firestop 700 Sealant

Geocel & DOWSIL™ Technologies for fire-rated applications

Fire rated neutral silicone. DOWSIL™ Firestop 700 is a one-part neutral curing silicone sealant ideal for resisting the spread of smoke and flames through expansion joints, or penetration seals in curtain walling, building facades or partition walls.

Product info


  • Up to a 4 hour fire rating can be achieved
  • Tested to BS 476 Part 22:1987 in expansion joint configurations and pipe and cable penetrations
  • Neutral cure type
  • Fast cure - tack free in 2 hours
  • Fire resistance tested according to 1366-4
  • classified up to EI240 according to 13501-2 depending on detailing
  • Fire resistance tested according to BS476-20
  • Classified up to EI240 depending on the joint configuration
  • Conforms to ISO 11600-F&G25LM
  • CE marked as a fire-resistant sealant according to EAD 350141-00-1106
  • Fire reaction tested according to EN1716, EN11925
  • Fire reaction classification B, s1, d0 according to EN135011
  • Tested according to and meeting the requirements of DIN 18545-E and DIN 18540, SNJF Category 1
  • Civil Defense Approval for UAE

Substrate Type

  • Anodized Aluminum
  • Brickwork
  • Fluorocarbon Coated Aluminum
  • Heat Strengthened Glass
  • Light-Weight Stone Panels
  • Low E Coated Glass
  • Natural Stone
  • Polyester Powder Coated Aluminum/Steel
  • Wood





Technical Information

Where to use Interior/Exterior
Paintable No
Time to cure 24 hours
Time to cure disclaimer Cure rate is 2 mm per 24 hours at 23°C and 50% relative humidity
Container Type Cartridge or Sausage
Shelf life 365 Days
Sizes 380ml and 310ml ‘e’ Cartridges, 600ml ‘e’ Sausages
Application method Sealant Gun and Cartridge


Application Instructions

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