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Sikasil®-670 Fire - Fire rated joint sealant

Verified by manufacturer 6 days ago

Sika Limited

Sikasil®-670 Fire is a fire rated, one-component, moisture-curing, low-modulus elastic joint sealant.

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Application

Designed for fire rated movement and connection joints on porous and non-porous substrates. Suitable for exterior and interior applications.

Description

Sikasil®-670 Fire is designed for fire rated movement and connection joints on porous and non-porous substrates. It is a one component, moisture-curing, low modulus elastic joint sealant.


Features and benefits:

  • Up to four hours fire resistance to EN 13366-4.
  • Very good resistance to weathering.
  • Movement capability of ± 35% (ASTM C 719).
  • Easy to smooth and good workability.
  • Good adhesion to various different substrates.
  • Natural curing.
  • LEED v4 EQc 2: Low-Emitting Materials.


Approvals and standards:

  • EN 15651-1 F EXT-INT CC 25 LM.
  • EN 15651-4 PW INT.
  • ISO 11600 F 25 LM & G 25 LM.
  • ASTM C 920, class 35.
  • EN 1366-4 assessment report.
  • ETA (ETAG 026).
  • UL listing (UL 2079).
  • EN 13501-2 classification report.
  • EN 140-3.

General information

Color

White

Grey

Black

Finish

Smooth

Material

Silicone

Shape

Formless

Length

50 mm

Width

50 mm

Height

230 mm

Uniclass

Pr_30_31_76_77 Silicone construction joint sealantsPrimary

CAWS

K10/245 Ceiling lining on timber

K10/220 Proprietary suspended ceiling system

K10/215 Suspended ceiling system

P31/710 Sealing

L10/75 Sealant joints

P31/40 Sealing around services

L10/810 Sealant joints

L20/820 Sealant joints

L20/80 Sealant joints

Product range

Sealing & Bonding / Passive Fire Protection

Specification data - Silicone construction joint sealants

Standard

To BS EN ISO 11600.

Material

Neutral cure.

Class

F-25LM and G-25LM.

Colour

White.

Grey.

Black.

Fire performance

-

Fire resistance

To EN 1366-4, 4 hours.

Reaction to fire

Class E.

Pack size

600 ml foil pack.

300 ml cartridge.

Density

To ISO 1183-1, ~1.35 kg/l.

Shore A hardness

To ISO 868, ~20.

Manufacturer guidance

After 28 days.

Tensile Modulus

To ISO 8339, ~0.30 N/mm² (at 100% elongation (23 °C)); ~0.50 N/mm² (at 100% elongation (-20 °C)).

Manufacturer guidance

Secant Tensile Modulus.

Elastic recovery

To ISO 7389, ~70%.

Tear resistance

To ISO 34, ~4.0 N/mm.

Manufacturer guidance

Tear Propagation Resistance.

Movement

To ISO 9047, ± 25%; to ASTM C 719, ± 35%.

Manufacturer guidance

Movement Capability.

Service temperature

-40°C (minimum) to +150°C (maximum).

Joint

-

Manufacturer guidance

Joint Design.

  • The joint width must be designed to suit the joint movement required and the movement capability of the sealant.
  • The joint width shall be ≥ 10 mm and ≤ 40 mm.
  • The joint depth shall be ≤ 20 mm.
  • A width to depth ratio of 2:1 must be maintained.


Consult manufacturer and insert requirements.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Manufacturing plant location

Material

Silicone

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

5.31 kg CO₂ eq/kg

Self-declared

Lower emissions

Recyclability

0

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

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