Product Data Sheet Show all documents

Everbuild Tecnic® Fire Sealant 300

An intumescent and acoustic acrylic sealant that swells when exposed to temperatures in excess of 150°c

Everbuild Tecnic® Fire Sealant 300 is a five hour rated, one part, emulsion acrylic based, intumescent sealant that gives a firm yet flexible seal to joints in a variety of fire rated structures. Tested in accordance with BS EN 1366-4:2006 as detailed in Warrington Fire Research Report No.181967 (May 2009) The product, in suitably designed joints will resist the passage of fire for up to 5 hours. The selected fillers used in this formulation also make it suitable for use as an acoustic sealant.

  • When exposed to heat, it swells greater than 3 x it’s original size, so creating a char that will resist the passage of fire for up to 5 hours.
  • No priming required for most construction substrates.
  • Joint movement capability of +/- 12.5%.
  • For use in joints up to 50mm wide.
  • Halogen free.
  • Non slump - easy to apply and tool off.
  • Tack free in 15 minutes.
  • Over paintable.
  • Excellent acoustic properties for sound deadening –average noise reduction of 29dB.
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Product Data Sheet Show all documents

Usage

Recommended for: Sealing joints, voids and irregular holes in fire walls, partitions and other structures; also for maintaining the integrity of pipes and cables that
penetrate them.
For internal perimeter pointing of fire rated door and window frames.  

Advantages

  • When exposed to heat, it swells greater than 3 x it’s original size, so creating a char that will resist the passage of fire for up to 5 hours.
  • No priming required for most construction substrates.
  • Joint movement capability of +/- 12.5%.
  • For use in joints up to 50mm wide.
  • Halogen free.
  • Non slump - easy to apply and tool off.
  • Tack free in 15 minutes.
  • Over paintable.
  • Excellent acoustic properties for sound deadening –average noise reduction of 29dB.

Packaging

380ml cartridge and 600ml foil

Colour

Grey and white

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Tested in accordance with BS EN 1366-4:2006 as detailed in Warrington Fire Research Report No. 181967 (May 2009).
  • Acoustic rated to BS EN ISO 140/3:2005
  • Tested for Air permeability to EN13141-1 Ventilation for buildings. Performance testing of components/products for residential ventilation.
  • CE marked under ETAG 026 Part 3 European Technical Assessment 13/1058
  • Tested in accordance with BS EN 1366-3:2009 as detailed in Warrington Fire Research Report No. 349127 (Feb 2015)
  • UL Listed

                                                                                                                                                                                                                                              
Product Information

Shelf Life

Use within 24 months.

Storage Conditions

Store in cool dry conditions between + 5°C and 30°C.
Technical Information

Joint Design

Max Joint Width - 50mm

Joint Movement - + / - 12.5% of Original Size

Joint Dimensions
For maximum movement accommodation, it is recommended that:
1. The sealant joint depth should be no less than 5mm
2. Joint depth should be 5mm for joints up to 10mm wide
3. Joints above 10mm in width should be half the width in depth up to 20mm and minimum 10mm for wider joints
Joint depth may be adjusted to the correct size using EVERBUILD JOINT BACKER ROD.

Application

Application Information

Curing Rate

1mm / 24hrs at 50% Relative Humidity 23°C

Skin Time

10 minutes

Tack Free Time

15 minutes
Application steps

SUBSTRATE PREPARATION

All surfaces must be clean, dry and dust free. All loose or flaking surface coatings, and old sealant and mastic joints, should be removed before application.

Everbuild Tecnic® Fire Sealant 300 does not require a primer on most common surfaces, although adhesion tests are recommended prior to full scale application. If the joint is likely to be immersed or if adhesion is poor (especially on porous surfaces) use FIRE SEALANT 400.

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