Sika® Icosit® KC 120 Trackfix

• Approval by the German Federal Railway Authority for operational testing of ballast bonding. 
• Reaction to fire behaviour A2_fl-s1 according to EN 13501-1. 

Polyurethane resin

In unopened original container, 12 months from production date

Store the product in tightly closed original containers in dry and temperature-controlled rooms (+15°C to +25°C).

Minimum +15°C / maximum +30°C

Minimum +5°C / maximum +40°C

Minimum +5°C / maximum +30°C

~90 minutes (at +23°C and without the use of Sika® Icosit® KC 120 Trackfix Booster)

• ~3 to 4 kg/m² for ballast slope reinforcement.
• ~1 to 2 kg/m² for bonding ballast bed of up to 15 cm thickness.
• ~2 to 4 kg/m² for bonding ballast bed of up to 30 cm thickness.
• ~5 to 8 kg/m² for bonding ballast bed of up to 50 cm thickness.

NOTE: Consumptions stated here are based on our experiences. Prior to the works, a field test should be conducted within the area in question to enable an accurate calculation of the consumption required for that specific site.

Before application, ballast must be inspected and examined by the most appropriate means, in accordance with any requirements, so the works can be suitably planned. The ballast to be bonded should be as dry, clean and free of separating components as possible. A field trial to assess bonding is recommended.

The product is usually pumped using two-component pumps. Alternatively, one-component pumps or a 'flooding' process without a pump can be used. For this purpose, A and B components are mixed homogeneously (i.e. without streaks) in a dry and clean container in the specified mixing ratio using an agitator. Due to its relatively long reaction time, the mixed product can then be processed with a one-component pump or by 'flooding' the ballast. 

Both components are pumped directly from the containers using two-component pumps.

Suitable pumps: TPH INJECT PS 25-II and TPH INJECT PS 5-II. 

At the end of the separate delivery hoses, the components are brought together in a 'T' or 'Y' piece and then mixed homogeneously (i.e. free of streaks) in the mixing tube by means of a static mixer.

Suitable static mixer: Static mixer 13-32 . 

The reaction mixture is applied to the prepared track ballast via a subsequent injection lance in such a way that an even distribution of the product is achieved ('flooding' method). For a simple and even distribution we recommend the use of an appropriate distribution head (approximately 40 cm long T-shaped discharge pipe with outlet openings).

Due to the relatively long reaction time of Sika® Icosit® KC 120 Trackfix, the product can alternatively be processed with a one-component pump. For this purpose, the components are mixed homogeneously (i.e. free of streaks) in a dry and clean vessel with a slow working agitator and then added to the pump.

Suitable pumps: CONTRACTOR 1U and ME 1 K ELEKTRISCH. 

After mixing as detailed above, it is also possible to pour the reaction mixture onto the track ballast within the processing time without a pump ('flooding' application method). 

The low-viscosity product penetrates quickly into the pore structure of the ballast and bonds or consolidates the ballast permanently.

The areas to be consolidated must be reworked at intervals depending on the penetration behaviour, until the required quantities of resin have been used up and have led to overall consolidation of the ballast.

Alternatively, Sika® Icosit® KC 120 Trackfix can also be injected into the ballast by means of ram lances or placed under the sleeper plane.

Pot life: ~90 minutes (+23°C) without booster. 

Foam factor without contact of water: ~1. 

Foam factor with contact of water: ~1.5 to 3. 

Curing: ~24 hours. 

By adding the catalyst Sika® Icosit® KC 120 Trackfix Booster to the Sika® Icosit® KC 120 Trackfix A component, different reaction times can be set according to the application (see Pot Life Table below).

Pot life was measured at +20°C and in a dry condition. The addition of the accelerator was to 20 kg of component A.

Clean equipment immediately after use with SikaInject® CL-2. Hardened material can only be removed mechanically.