Sika Icosit KC 340/4, Polyurethane grout for tram baseplates, Exterior, Black, 6 kg

Category: Grouts

SIKA

Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.

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2-part polyurethane grout under discrete baseplates of tram / light rail tracks

Sika® Icosit® KC 340/4 is a flexible two-part polymer grout based on polyurethane resin. It is designed as a vibration absorbing, load-bearing, flexible grout for the precision alignment of rails, turnouts / switches, etc. Sika® Icosit® KC 340/4 is also used for fixing track components to rigid substrates such as concrete slabs, steel bridge decks and tunnel invert slabs.

Medium axle loads of trams and light-rail vehicles.
Noise and vibration suppression.
Reduces erosion of concrete under baseplate.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (shore A 65).
Damping, compressible.
Good electrical insulation against stray currents.
No stress peaks on anchor bolts.
Excellent adhesion on various substrates.
Levels out tolerances.
Suitable as a powerful, shear-resistant adhesive.
Absorbs dynamic stresses and prolongs the life of concrete substructure.
Insensitive to moisture.
Long durability, less maintenance.

Usage

As a noise and vibration reducing grout under discrete baseplates of tramway or light rail track sections.

Advantages

Medium axle loads of trams and light-rail vehicles.
Noise and vibration suppression.
Reduces erosion of concrete under baseplate.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (shore A 65).
Damping, compressible.
Good electrical insulation against stray currents.
No stress peaks on anchor bolts.
Excellent adhesion on various substrates.
Levels out tolerances.
Suitable as a powerful, shear-resistant adhesive.
Absorbs dynamic stresses and prolongs the life of concrete substructure.
Insensitive to moisture.
Long durability, less maintenance.

Packaging

Part A	5,46 kg container
Part B	0,54 kg container
A+B	6 kg

Refer to current price list for packaging variations.

Colour

Black

Technical Information

Shore A Hardness

65 ± 5 (after 28 days)

(ISO 868)

Shore hardness assists with material identification and assessing the curing progress on site.

Compressive stiffness

Load-Deflection Diagram

en_PNG_02-en-railfixing-icosit-KC-340-4-1200x900

Static stiffness determined according to DIN 45673-1.

Dimensions of test specimen 360 × 160 × 25 mm;

Spring index k_stat = 29 kN/mm, determined as per the secant method between 8 and 32 kN.

Tensile Strength

~2,6 N/mm²

(ISO 527)

Electrical Resistivity

~1,22 × 10⁹ Ω·m

(DIN VDE 0100-610 and IEC 93)

Service Temperature

-40 °C minimum / +80 °C maximum

short term +150 °C maximum

Chemical Resistance

Long-term resistant against:

Water
Most detergents
Sea water

Temporary resistant against:

Mineral oils, diesel fuel

Short-term or no resistance against:

Organic solvents (ester, ketone , aromates) and alcohol
Concentrated acids and lyes

Contact Sika® Technical Services for specific information.

Application Information

Mixing Ratio

Part A : Part B = 100 : 10 (parts by weight)

Layer Thickness

15 mm minimum

60 mm maximum

Product Temperature

Condition product parts before application preferably at ~+15 °C to assist with flow and curing speed

Ambient Air Temperature

+5 °C minimum / +35 °C maximum

Relative Air Humidity

90 % maximum

Substrate Temperature

+5 °C minimum / +35 °C maximum

Substrate Moisture Content

Dry to matt damp

Pot Life

~11 minutes at +20 °C

After this time, the mixture becomes unusable.

Higher temperatures will shorten pot life.

Curing Time

Tack-free ~2 hours at +20 °C

Trafficable ~12 hours at +20 °C

Curing Rate

	Shore A Hardness Values at Different Curing Temperatures
Curing Time	0 °C	5 °C	23 °C	35 °C
1 Hour	-	-		~20
2 Hours	-	-	~20	~35
4 Hours	-	~15	~30	~40
7 Hours	~25	~25	~40	~50
1 Day	~40	~40	~50	~55
2 Days	~45	~45	~55	~60
3 Days	~50	~50	~60	~60
7 Days	~55	~55	~60	~60
14 Days	~55	~55	~60	~60

Waiting Time / Overcoating

On primer or coating at +20 °C

	Minimum	Maximum
Icosit® KC 330 Primer	1 hour	3 days
Sikadur®-32+	24 hours	7 days

The above design is only a sample of the options available, for reference purposes only. Our policy of continuous improvement may result in a change of specifications without notice. If any discrepencies might be between the data sheet values and standards, we reserve the rights to make technical changes. Our company will not be held responsible, as all or any of pictures, drawings, weights and dimensions details or other elements in this document are only indicative and must not be considered contractual. Contact our sales team for other specifications or custom made products.

Contact our sales team for other specifications or custom made products.

Preview TDS

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General Specifications
Packaging	6 kg
Chemical Base	2-part polyurethane grout
Usage	Noise and vibration reducing grout under discrete baseplates
Usage Area	Exterior
Color	Black
Working Time	11 minutes
Product Temperature	+15 °C
Application Thickness	15 mm >< 60 mm
Ambient Air Temperature	+5 °C min. / +35 °C max.
Storage Conditions	The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +25 °C
Density	1.0 kg/l

2-part polyurethane grout under discrete baseplates of tram / light rail tracks

Medium axle loads of trams and light-rail vehicles.
Noise and vibration suppression.
Reduces erosion of concrete under baseplate.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (shore A 65).
Damping, compressible.
Good electrical insulation against stray currents.
No stress peaks on anchor bolts.
Excellent adhesion on various substrates.
Levels out tolerances.
Suitable as a powerful, shear-resistant adhesive.
Absorbs dynamic stresses and prolongs the life of concrete substructure.
Insensitive to moisture.
Long durability, less maintenance.

Usage

As a noise and vibration reducing grout under discrete baseplates of tramway or light rail track sections.

Advantages

Medium axle loads of trams and light-rail vehicles.
Noise and vibration suppression.
Reduces erosion of concrete under baseplate.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (shore A 65).
Damping, compressible.
Good electrical insulation against stray currents.
No stress peaks on anchor bolts.
Excellent adhesion on various substrates.
Levels out tolerances.
Suitable as a powerful, shear-resistant adhesive.
Absorbs dynamic stresses and prolongs the life of concrete substructure.
Insensitive to moisture.
Long durability, less maintenance.

Packaging

Part A	5,46 kg container
Part B	0,54 kg container
A+B	6 kg

Refer to current price list for packaging variations.

Colour

Black

Technical Information

Shore A Hardness

65 ± 5 (after 28 days)

(ISO 868)

Shore hardness assists with material identification and assessing the curing progress on site.

Compressive stiffness

Load-Deflection Diagram

en_PNG_02-en-railfixing-icosit-KC-340-4-1200x900

Static stiffness determined according to DIN 45673-1.

Dimensions of test specimen 360 × 160 × 25 mm;

Spring index k_stat = 29 kN/mm, determined as per the secant method between 8 and 32 kN.

Tensile Strength

~2,6 N/mm²

(ISO 527)

Electrical Resistivity

~1,22 × 10⁹ Ω·m

(DIN VDE 0100-610 and IEC 93)

Service Temperature

-40 °C minimum / +80 °C maximum

short term +150 °C maximum

Chemical Resistance

Long-term resistant against:

Water
Most detergents
Sea water

Temporary resistant against:

Mineral oils, diesel fuel

Short-term or no resistance against:

Organic solvents (ester, ketone , aromates) and alcohol
Concentrated acids and lyes

Contact Sika® Technical Services for specific information.

Application Information

Mixing Ratio

Part A : Part B = 100 : 10 (parts by weight)

Layer Thickness

15 mm minimum

60 mm maximum

Product Temperature

Condition product parts before application preferably at ~+15 °C to assist with flow and curing speed

Ambient Air Temperature

+5 °C minimum / +35 °C maximum

Relative Air Humidity

90 % maximum

Substrate Temperature

+5 °C minimum / +35 °C maximum

Substrate Moisture Content

Dry to matt damp

Pot Life

~11 minutes at +20 °C

After this time, the mixture becomes unusable.

Higher temperatures will shorten pot life.

Curing Time

Tack-free ~2 hours at +20 °C

Trafficable ~12 hours at +20 °C

Curing Rate

	Shore A Hardness Values at Different Curing Temperatures
Curing Time	0 °C	5 °C	23 °C	35 °C
1 Hour	-	-		~20
2 Hours	-	-	~20	~35
4 Hours	-	~15	~30	~40
7 Hours	~25	~25	~40	~50
1 Day	~40	~40	~50	~55
2 Days	~45	~45	~55	~60
3 Days	~50	~50	~60	~60
7 Days	~55	~55	~60	~60
14 Days	~55	~55	~60	~60

Waiting Time / Overcoating

On primer or coating at +20 °C

	Minimum	Maximum
Icosit® KC 330 Primer	1 hour	3 days
Sikadur®-32+	24 hours	7 days