Sikasil®-670 Fire

• LEED v4 EQc 2: Low-Emitting Materials

• 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

Neutral cure silicone

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.

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.

−40 °C min. / +150 °C max.

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.
 

For larger joints please contact our Sika Technical Service.

Use polyethylene foam backing rods.

+5 °C min. / +40 °C max.

+5 °C min. / +40 °C max., min. 3 °C above dew point temperature

The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Sikasil®-670 Fire adheres without primers and/or activators

Clean all tools and application equipment immediately after use with Sika® Remover-208. Once cured, resi-
dual material can only be removed mechanically.
For cleaning skin use Sika® Cleaning Wipes-100.