Sikasil®-670 Fire is a fire rated, 1-component, moisture-curing, low-modulus elastic joint sealant.Sikasil®-670 Fire is designed for fire rated movement and connection joints on porous and non-porous substrates.

Advantages

• Up to 4 hours fire resistance according to EN 1366-4.
• Very good resistance to weathering.
• Movement capability of ± 35 % (ASTM C 719).
• Easy to smooth and very good workability.
• Good adhesion to many different substrates.
• Neutral curing.
  
  

Colour

White, Grey, Black

Product Information

Chemical Base

Neutral cure silicone

Shelf Life

Sikasil®-670 Fire has a shelf life of 12 months from the date of production, if it is stored in undamaged, original, sealed packaging, and if the storage conditions are met.

Storage Conditions

Sikasil®-670 Fire shall be stored in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +25 °C.

Density

~1.35 kg/l                                                                  (ISO 1183-1)

Technical Information

Shore A Hardness

~20 (after 28 d)                                                           (ISO 868)      

Secant Tensile Modulus

~0.30 N/mm² at 100 % elongation (23 °C)                     (ISO 8339)                 
~0.50 N/mm² at 100 % elongation (−20 °C)

Movement Capability

± 25 %                                                                         (ISO 9047)               
± 35 %                                                                         (ASTM C 719)

Elastic Recovery

~70 %                                                                          (ISO 7389)   
                 
Tear Propagation Resistance

~4.0 N/mm                                                                      (ISO 34)       
             
Service Temperature

−40 °C min. / +150 °C max.

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 (for exceptions, see table below).
 

Standard joint widths for joints between concrete elements:

All joints must be correctly designed and dimensioned in accordance with the relevant standards, before their construction. The basis for calculation of the necessary joint widths are the type of structure and its dimensions, the technical values of the adjacent building materials and the joint sealing material, as well as the specific exposure of the building and the joints.

Data Sheets

Product Data Sheet 
Safety Data Sheets 
Declaration of Performance
Environmental Product Declarations Sheets

Packaging

600 ml foil pack, 12 foil packs per box
300 ml cartridge, 12 cartridges per box

The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.