Sikasil®-670 Fire

• Contributes towards satisfying Indoor Environmental Quality (EQ) Credit: Low-Emitting Materials under LEED® v4 — 1–3 points

• Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU)

• AS 1530.4:2014 and AS 4072.1:2005 (R2016) Fire assessment report

• DoP Sikasil®-670 Fire – EAD 350141-00-1106:2017 – 56464597 – en

• Fire Testing EN 13501-1, Sikasil-670 Fire, CSTB, Report No RA15-0053

• UL Product iQ, XHBN.HW-S-0114 - Joint Systems, System No. HW-S-0114

• CE marking and declaration of performance based on EN 15651-1:2012 Sealants for non-structural use in joints in buildings and pedestrian walkways — Part 1: Sealants for facade elements

• CE marking and declaration of performance based on EN 15651-2:2012 Sealants for non-structural use in joints in buildings and pedestrian walkways — Part 2: Sealants for glazing

• CE marking and declaration of performance based on EN 15651-4:2012 Sealants for non-structural use in joints in buildings and pedestrian walkways — Part 4: Sealants for pedestrian walkways

• Airborn Sound Transmission EN 140-3, Sikasil-670 Fire, UKAS, Report No C/20664/R

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.

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +25 °C. Always refer to the packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Refer to the section 'Certificates and test reports' or contact Sika Technical Services for specific information.

Rw(C;C_tr) = 38(-2;-9)

Use closed cell, polyethylene foam backing rod.

The substrate temperature must be +3 °C above dew point temperature and free from frost and ice.

IMPORTANT

Poor adhesion due to incorrect priming procedure

Incorrectly defined or uncontrolled priming procedures may lead to a variation in product performance.

1. Test adhesion on project-specific substrates and agree on procedures with all parties before full project application. For more information contact Sika Technical Services.

Poor adhesion due to inadequate surface preparation

Note: Primers are adhesion promoters. Primers cannot replace proper surface preparation and surface cleaning.

1. Do not use primers for improving poorly prepared or poorly cleaned joint surfaces.

The substrate must be sound, clean, dry and free of contaminants such as dirt, oil, grease, cement laitance, sealant residues and poorly bonded coatings which could affect adhesion of the primer and sealant.

The substrate must be of sufficient strength to withstand the stress induced by the sealant during movement. Use techniques such as wire brushing, grinding, grit blasting or other suitable mechanical methods to remove all weak substrate material. Repair all damaged joint edges with suitable Sika repair products. Remove dust, loose and friable material from all surfaces before applying the sealant.

If tested or supported by experience, the Product can be used without primers or activators on many substrates.

IMPORTANT

Strictly follow installation procedures

Strictly follow installation procedures as defined in Method Statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Masking

It is recommended to use masking tape where neat or exact joint lines are required. Remove the tape within
the skin time after finishing.

 
Joint Backing
After the required substrate preparation, insert a suitable backing rod to the required depth.

 
Priming
If required, prime the joint surfaces as recommended in substrate preparation. Avoid excessive application of primer causing puddles at the base of the joint.

 
Application
Prepare the end of the cartridge / foil pack before or after inserting into the sealant gun. Fit the nozzle and cut it to the desired bead size. Extrude Sikasil®-670 Fire into the joint ensuring that it comes into full contact with the sides of the joint and avoiding any air entrapment.

 
Finishing
As soon as possible after application, sealant must be firmly tooled against the joint sides to ensure adequate adhesion and a smooth finish. Use a compatible tooling agent (e.g. Sika® Tooling Agent N) to smooth the joint surface. Do not use tooling products containing solvents.

Clean all tools and application equipment with Sika® Remover-208 immediately after use. Once cured, hardened material can only be removed mechanically. For cleaning skin use Sika® Cleaner-350H.