Product Data Sheet Show all documents

Sikafloor® TC 257

(former MSeal TC 257)

2 PART POLYURETHANE UV RESISTANT PROTECTIVE TRAFFIC COATING

Sikafloor® TC 257 is a two-component, hardwearing, pigmented, aliphatic polyurethane coating, designed for application in heavily trafficked areas. It provides a UV-resistant, hard-elastic surface resistant to chemicals and abrasion. Suitable for use in hot and tropical climatic conditions. 

  • Excellent impact and abrasion resistance
  • Tough elastic
  • UV and weather resistant
  • Good chemical and oil resistance
  • Non-yellowing
  • Gloss finish
Product Data Sheet Show all documents

Usage

The high abrasion resistance of Sikafloor® TC 257 combined with its elasticity makes it suitable for use in car parks both indoors and outdoor. Sikafloor® TC 257 may be used in the following applications:
  • Pedestrian walk ways
  • Light engineering workshops
  • Car parks
  • Vehicle ramps and traffic aisles
 

Advantages

  • Excellent impact and abrasion resistance
  • Tough elastic
  • UV and weather resistant
  • Good chemical and oil resistance
  • Non-yellowing
  • Gloss finish

Packaging

22.5 kg (18 L) units (Part A + Part B)

Colour

Standard colours: Basalt Grey, Black Grey, May Green, Oxide Red, Brilliant Blue, Light Grey, Traffic Grey, Reseda Green

Please request local Sika representative for standard colour chart.

Other colors are available on request.

Product Details

Product Information

Chemical Base

Polyurethane resin

Shelf Life

12 months from date of production

Storage Conditions

Store in a dry area in original sealed packaging at temperatures between +5°C and +30°C. Protect from direct sunlight, heat and moisture.

Density

Mixed resin: ~1.25 g/l (at 25°C), may vary with colour

Solid Content by Weight

> 70 %, may vary with colour

 
Technical Information

Abrasion Resistance

~50 mg 

(CS17 / 1000 g / 1000 cycles)

(ASTM C957)

Tensile Adhesion Strength

≥ 2.0 N/mm2 (or failure in concrete)

(ASTM D4541)

Tear Strength

~40 kN/m

(ASTM D1004)

Chemical Resistance

Sikafloor® TC 257 is resistant to acids and alkalis of medium concentrations, mineral oil products and solvents. For more details, contact Sika's sales representative.

Application

Application Information

Ambient Air Temperature

+10°C min. / +35°C max.

Relative Air Humidity

80 % r.h. max.

Dew Point

Beware of condensation!
The substrate and uncured floor must be at least 3°C above dew point to reduce the risk of condensation or blooming on the floor finish.

Pot Life

~60 min at 25°C

(ASTM D2471)

Curing Time

Foot traffic: ~48 hours at 25°C (initial cure)

Time is approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.

Refer to PDS of relevant base coat for more information.

Tack Free Time

~2 h at 25°C

Time is approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.
Consumption

Consumption

From 0.25 kg/m2 per coat, depending on the system, surface profile (roughness), exposure and area of application.
Note: These figures are theoretical and do not include for any additional material required due to surface porosity, surface profile, variations in level and wastage etc..
Application steps

MIXING

Mix full units only. Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved. To ensure thorough mixing pour materials into another container and mix again to achieve a consistent mix. Over-mixing must be avoided to minimise air entrainment.

APPLICATION

Prior to application, confirm substrate moisture content, relative humidity and dew point. As a seal coat, the product can be applied by roller or squeegee and then back-rolled (crosswise) with a short-piled roller.

 

Apply a single coat or as a multi coat sandwich system incorporating aggregates to give a slip resistant finish. When applying as a top coat or part of a multi coat system, do not exceed the maximum overcoating times of the previous coating.

CLEANING OF TOOLS

Clean all tools and application equipment with suitable thinner (Xylene / MEK / Acetone), immediately after use. Hardened and/or cured material can only be removed mechanically.

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