Product Data Sheet Safety Data Sheet Show all documents

Everbuild Tecnic® Fire Sealant 400

Fire and Acoustic Rated Low Modulus Sealant.

Everbuild Tecnic® Fire Sealant 400 is a neutral cure, elastic, acoustic rated silicone sealant which conforms to EN1366-4:2006 for fire retardancy and has a fire rating of up to 4 hours in certain joint configurations. Typically used for all sealing joints within the building envelope which require a fire rating.

  • Fire rated to BS EN 1366-4.
  • Neutral cure – adheres to most building surfaces, porous and non porous.
  • Permanently flexible (25 % movement accommodation).
  • Excellent weathering characteristics – suitable for internal and external use.
  • Can be used in joints up to 50 mm wide.
  • Non slump - easy to apply and tool off.
  • Forms an acoustic seal.
 
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • All building joints which require a fire rating.
  • Sealing joints in fire walls, partitions and other structures.
  • Ideal for use for fire rated expansion joints.

Advantages

  • Fire rated to BS EN 1366-4.
  • Neutral cure – adheres to most building surfaces, porous and non porous.
  • Permanently flexible (25 % movement accommodation).
  • Excellent weathering characteristics – suitable for internal and external use.
  • Can be used in joints up to 50 mm wide.
  • Non slump - easy to apply and tool off.
  • Forms an acoustic seal.
 

Packaging

380 ml Cartridge.

Colour

White, grey and black.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Fire rated BS EN 1366-4.
  • Acoustic tested to BS EN ISO 140-3.
  • Tested for air permeability to EN 13141-1 Ventilation for buildings. Performance testing of components/products for residential ventilation.
  • CE / UKCA Marked under EN15651-1 Type F EXT-INT-CC Class 25LM.
  • Certifire CF5027.     

      

Flow resistance

<3 mm (ISO 7390)
CleaningUncured: white spirits; cured sealant: SILICONE EATER.
Specific ResistancesMild acids / alkali's at room tempreature < 10 % concentration.
Product Information

Chemical Base

Alkoxy cure silicone.

Shelf Life

Use within 12 months.

Storage Conditions

Store in cool dry conditions between +5 °C and +25 °C.

Density

Approx. 1.3 g/cm3
Technical Information

Shore A Hardness

25 to 30

Movement Capability

±25 % (ISO 9047)

Service Temperature

-40 to +140 °C

Joint Design

For maximum movement accommodation, it is recommended that:
1. The sealant joint width should be no less than 5 mm.
2. Joint depth should be half joint width e.g. 20 mm wide and 10 mm deep.
Joint depth may be adjusted to the correct size; use EVERBUILD® JOINT
BACKER ROD.
Max Joint Width - 50 mm.
Joint Width Calculation - Joint widths are calculated as in BS6213:
Width = (M x 100 / F) + M
Where M = movement and F = movement accommodation Factor.

Application

Application Information

Curing Rate

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

Tack Free Time

20 - 30 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.

Mortar: Use Primer 3N.
Improve adhesion on non-porous surfaces by using Sika® Aktivator-205.

 

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