Product Data Sheet Safety 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 four-hour rated, one part, acrylic emulsion 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, the product, in suitably designed joints, will resist the passage of fire for up to 4 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 its original size, so creating a char that will resist the passage of fire for up to 4 hours.
  • No priming required for most construction substrates.
  • Joint movement capability of +/- 12.5 %.
  • For use in joints up to 50 mm 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 29 dB.
Product Data Sheet Safety 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 its original size, so creating a char that will resist the passage of fire for up to 4 hours.
  • No priming required for most construction substrates.
  • Joint movement capability of +/- 12.5 %.
  • For use in joints up to 50 mm 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 29 dB.

Packaging

380 ml cartridge & 600 ml foil

Colour

Grey and white

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Tested in accordance with BS EN 1366-4:2006. 
  • Acoustic rated to BS EN ISO 140-3:2005.
  • Tested for Air permeability to BS EN13141-1:2004 Ventilation for buildings. Performance testing of components/products for residential ventilation.
  • UKCA and CE marked under BS EN 15651-1:2012.
  • Tested in accordance with BS EN 1366-3:2009.
  • Certifire CF 5026

                                                                                                                                                                                                                                    
Product Information

Chemical Base

Water based acrylic

Shelf Life

Use within 24 months.

Storage Conditions

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

Elongation at break

>100 % (ISO8339)

Movement Capability

12.5 % 

Elastic Recovery

<40 % (ISO7389)

Shrinkage

<25 % (ISO10563)

Reaction to Fire

Class E (EN13501-1)

Joint Design

Max Joint Width - 50 mm

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 5 mm 2. Joint depth should be 5 mm for joints up to 10 mm wide 3. Joints above 10 mm in width should be half the width in depth up to 20 mm and minimum 10 mm for wider joints Joint depth may be adjusted to the correct size using EVERBUILD® JOINT BACKER ROD.

Application

Application Information

Curing Rate

1 mm / 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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