DOWSIL™ FIRESTOP 700 is a fire-rated, one-part, neutral curing silicone sealant that offers excellent unprimed adhesion to a range of common construction substrates including glass, steel, masonry, and brick. It is designed for sealing interior and exterior linear joints and penetration seals where a fire-resistance rating is required. This product is fully compatible with Pyrobel fire-resistant glass, making it an ideal choice for integrated fire-safety systems.

Key Features & Benefits

Superior fire resistance: Achieves up to a 4-hour fire resistance rating (integrity and insulation) depending on the joint configuration, tested according to EN1366-4 and BS 476 Part 22.

Excellent adhesion: Provides excellent unprimed adhesion to most porous and non-porous construction substrates, ensuring a durable and reliable seal.

High performance: Offers a joint movement capability of ±50% and exceptional resistance to weathering, ozone, UV radiation, and temperature extremes for a long service life.

Ease of use: As a one-part, non-slump sealant, it is easy to apply and tool. It cures at room temperature when exposed to air moisture and is tack-free in approximately 1.5 hours.

Certified and compliant: CE marked as a fire-resistant sealant and conforms to multiple standards including ISO 11600-F&G-25LM and railway standard EN 45545-2.

Primary Applications

Sealing of vertical and horizontal linear expansion joints in fire-rated walls.

Weather-sealing of building facades where a fire rating is necessary.

Sealing penetration systems for pipes and cables passing through fire-rated structures.

Packaging

Sold per 1 piece (310 ml cartridge)

1 box = 12 pieces