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EVERBUILD Tecnic Fire Sealant 300, Intumescent & Acoustic Acrylic Sealant 150°C Rated, Interior

EVERBUILD Tecnic Fire Sealant 300, Intumescent & Acoustic Acrylic Sealant 150°C Rated, Interior

Adhesives & Sealants
EVERBUILD

Everbuild is a well-established brand under the Sika group, specializing in high-performance sealants, adhesives, fillers, and building chemicals. Known for its reliable and durable products, Everbuild caters to both professional tradespeople and DIY enthusiasts. The product range includes silicone sealants, acrylic fillers, foam sealants, and various specialty construction chemicals designed to meet the demands of modern construction and renovation projects across the UK and beyond.

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General Specifications
Packaging 380 mL
Usage Fire-Rated Sealing Around Pipes, Cables, Doors, Partitions
Usage Area Interior
Color Grey
Chemical Base Water based acrylic
Storage Conditions +5 °C to +30 °C - Store in cool, dry conditions.
Density N/A
Service Temperature N/A
Application Time 10 - 15 min.
Curing Time 24 hours
Application Thickness 2 >< 3 mm
Application Method Gun
UV Resistant No
Moisture Resistant Yes
Mold Resistant No
Paintable Yes
Sealant Yes
Flexible Yes

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.
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
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 Information
Curing Rate

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

10 minutes
Tack Free Time

15 minutes