Product Data Sheet Show all documents
EVERBUILD® Pyro Mate Firesil

EVERBUILD® Pyro Mate Firesil

A neutral cure, fire rated silicone sealant.

A neutral cure, elastic silicone sealant which conforms to the EN1366-4 standard for fire retardancy and has a fire rating of up to 4 hours in certain joint configurations. CE Marked under EN15651-1:2012 type F-EXT-INT CC class F 25LM. 

  • Fire rated to EN1366 Part 4.
  • Neutral cure – adheres to most building surfaces, porous and non porous.
  • Permanently flexible.
  • Excellent weathering characteristics – suitable for internal and external use.
  • Can be used in joints up to 50 mm wide and 25 mm deep.
  • No priming required for most construction substrates.
  • Non slump - easy to apply and tool off.
  • Long tooling time 20-30 minutes.
 
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Product Data Sheet Show all documents

Usage

  • All building joints which require a fire rating.
  • Sealing joints, voids and irregular holes in fire walls, partitions and other structures.
  • Fire rated expansion joints.

Advantages

  • Fire rated to EN1366 Part 4.
  • Neutral cure – adheres to most building surfaces, porous and non porous.
  • Permanently flexible.
  • Excellent weathering characteristics – suitable for internal and external use.
  • Can be used in joints up to 50 mm wide and 25 mm deep.
  • No priming required for most construction substrates.
  • Non slump - easy to apply and tool off.
  • Long tooling time 20-30 minutes.
 

Packaging

Generic Cartridge with Nozzle.

Colour

White

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Fire rated to EN1366 Part 4.
  • EN15651-1:2012 Type F EXT-INT Class F25LM CC.
  • Certifire.
  • Acoustic rated to BS EN ISO 140-3.
  • Tested for air permeability to EN13141-1 Ventilation for buildings. Performance testing of components/products for residential ventilation.
Product Information

Shelf Life

12 months from date of manufacture. 

Storage Conditions

Store in cool dry conditions between + 5 °C and +30 °C.  PROTECT FROM FROST.

Density

ca. 1.35 g/cm3
Technical Information

Shore A Hardness

25 to 30 (Shore A)

Secant Tensile Modulus

<0.4 N/mm2 @23 °C (ISO8339)

Movement Capability

25 % (ISO9047)

Elastic Recovery

>70 % (ISO7389)

Service Temperature

-40 to +140 °C

Application

Application Information

Sag Flow

<3 mm (ISO7390 at 50 °C and 50 % RH)

Curing Rate

1-2 mm/24hrs at 50% Relative Humidity/23 °C

Tack Free Time

20 to 30 minutes
Consumption

Consumption

ca. 10.5 linear metres at 6 mm bead
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.

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