Sika Icosit KC 320/50, Polyurethane grout for embedded tracks (medium hardness), Exterior, Grey, 10 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 for continuous embedded tracks (Shore Hardness A 58)

Sika® Icosit® KC 320/50 is a flexible 2-part polyurethane polymer resin grout. It is designed as a vibration absorbing, load-bearing, flexible grout for fixing grooved or T–rails onto concrete slabs, steel bridge decks and tunnel invert slabs. Particularly suitable for embedded (floating) rail designs.

Noise and vibration suppression.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (Shore Hardness A 58).
Damping, compressible.
Good electrical insulation against stray currents.
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 for continuous embedded grooved or T–rails and road crossing applications.

Advantages

Noise and vibration suppression.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (Shore Hardness A 58).
Damping, compressible.
Good electrical insulation against stray currents.
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	9,1 kg container
Part B	0,9 kg container
A + B	10 kg

Colour

Grey

Technical Information

Shore A Hardness

58 ± 5 (after 28 days)

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

Compressive stiffness

Load-Deflection Diagram

en_PNG_02-en-diagram-icosit-320-50

Static stiffness determined according to DIN 45673-1.

Test specimen dimensions 1000 x 180 x 25 mm.

Spring index c = 54 kN/mm, determined as per the secant method between 8 kN and 32 kN.

Tensile Strength

~1,4 N/mm² (ISO 527)

Thermal Resistance

-40 °C min. / +80 °C max.

Short term +150 °C max.

Chemical Resistance

Long-term resistant against:

Water
Most detergents
Sea water, alkaline water

Short-term resistant against:

Mineral oils, diesel fuel

Short-term or no resistance against:

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

Contact Sika Technical Services for specific information.

Application Information

Mixing Ratio

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

Layer Thickness

Minimum 15 mm

Maximum 60 mm

Product Temperature

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

Ambient Air Temperature

+5 °C min. / +35 °C max.

Relative Air Humidity

80 % max.

Substrate Temperature

+5 °C min. / +35 °C max.

Substrate Moisture Content

Dry

Pot Life

~15 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
Traffickable	~24 hours at +20 °C

Curing Rate

Shore A	Curing Temperature
Curing Time	5 °C	23 °C	35 °C
2 h	-	~10	~21
4 h	-	~21	~30
7 h	~8	~29	~35
1 d	~28	~40	~45
3 d	~36	~49	~53
7 d	~44	~52	~55
14 d	~45	~53	~57

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.

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General Specifications
Packaging	10 kg
Chemical Base	2-part polyurethane grout
Usage	Noise reducing grout for grooved/T-rails and road crossings
Usage Area	Exterior
Color	Grey
Working Time	15 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 for continuous embedded tracks (Shore Hardness A 58)

Noise and vibration suppression.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (Shore Hardness A 58).
Damping, compressible.
Good electrical insulation against stray currents.
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 for continuous embedded grooved or T–rails and road crossing applications.

Advantages

Noise and vibration suppression.
More uniform load distribution into substructure.
Watertight undersealing.
Flexible, elastic (Shore Hardness A 58).
Damping, compressible.
Good electrical insulation against stray currents.
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	9,1 kg container
Part B	0,9 kg container
A + B	10 kg

Colour

Grey

Technical Information

Shore A Hardness

58 ± 5 (after 28 days)

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

Compressive stiffness

Load-Deflection Diagram

en_PNG_02-en-diagram-icosit-320-50

Static stiffness determined according to DIN 45673-1.

Test specimen dimensions 1000 x 180 x 25 mm.

Spring index c = 54 kN/mm, determined as per the secant method between 8 kN and 32 kN.

Tensile Strength

~1,4 N/mm² (ISO 527)

Thermal Resistance

-40 °C min. / +80 °C max.

Short term +150 °C max.

Chemical Resistance

Long-term resistant against:

Water
Most detergents
Sea water, alkaline water

Short-term resistant against:

Mineral oils, diesel fuel

Short-term or no resistance against:

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

Contact Sika Technical Services for specific information.

Application Information

Mixing Ratio

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

Layer Thickness

Minimum 15 mm

Maximum 60 mm

Product Temperature

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

Ambient Air Temperature

+5 °C min. / +35 °C max.

Relative Air Humidity

80 % max.

Substrate Temperature

+5 °C min. / +35 °C max.

Substrate Moisture Content

Dry

Pot Life

~15 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
Traffickable	~24 hours at +20 °C

Curing Rate

Shore A	Curing Temperature
Curing Time	5 °C	23 °C	35 °C
2 h	-	~10	~21
4 h	-	~21	~30
7 h	~8	~29	~35
1 d	~28	~40	~45
3 d	~36	~49	~53
7 d	~44	~52	~55
14 d	~45	~53	~57