Product Data Sheet Show all documents

Sikafloor®-304 W

2-PART PUR MATT SEAL COAT PART OF THE SIKA COMFORTFLOOR® FLOORING RANGE

Sikafloor®-304 W is a two-part water based, very low VOC, polyurethane, matt seal coat.

  • Water based
  • Very low odour
  • Good UV resistance, non-yellowing
  • Easy to clean
Product Data Sheet Show all documents

Usage

Matt seal coat for Sika® ComfortFloor® flooring range.

Advantages

  • Water based
  • Very low odour
  • Good UV resistance, non-yellowing
  • Easy to clean

Packaging

Part A

6.0 kg containers

Part B

1.5 kg containers

Part A+B

7.5 kg ready to mix units

Colour

Resin - part A

white, liquid

Hardener - part B

yellowish, liquid

Sikafloor®-304W is silky-matt after final curing.

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

LEED Rating:

  • Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings.
  • VOC Emission certificate according to AgBB und DIBt approval requirements (AgBB – Committee for Health-related Evaluation of Building Products, DiBt – German Institute for Building Technology), Eurofins report No. 770027B.

 

APPROVALS / STANDARDS

  • Coating for concrete protection according to the requirements of EN 1504-2:2004 and the EN 13813:2002, DoP 02 08 01 04 005 0 000002 1041 certified by Factory Production Control Body, 0620 and provided with the CE-mark.
  • Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02 0801 04 005 0 000002 1041, certified by notified factory production control certification body 0620, and provided with the CE marking.
  • Fire classification acc. to EN 13501-1 Report No. KB-Hoch-090971, Test institute Hoch, Germany.
  • Biological resistance certificate Sikafloor-304W CSM Statement of Qualification - ISO 846, very good - Report No. SI 1108-533 Fraunhofer IPA, Germany.
Product Information

Chemical Base

PUR

Shelf Life

Part A

6 months from date of production

Part B

12 months from date of production

Storage Conditions

The packaging must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5°C and +30°C.

Density

Part A

~ 1.05 kg/l

Part B~ 1.13 kg/l
Mixed resin~ 1.07 kg/l (diluted with 5 % Water)

All Density values at +23°C
Technical Information

Gloss level

Angle

Value

85°

< 55

60°

< 10

Chemical Resistance

Resistant to many chemicals. Please ask for a detailed chemical resistance table.

Application

Application Information

Mixing Ratio

Part A : part B = 80 : 20 (by weight)

Ambient Air Temperature

+10°C min. / +30°C max.

Relative Air Humidity

75% max.
During curing the humidity should not exceed 75 % max. Adequate fresh air ventilation must be provided to remove the excess moisture from the curing product.

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.

Substrate Temperature

+10°C min. / +30°C max.

Pot Life

Temperatures

Time

+10°C

~ 50 minutes

+20°C

~ 30 minutes

+30°C~ 20 minutes

Caution: End of pot life is not noticeable.

Curing Time

Before overcoating Sikafloor®-304 W

Substrate temperature

Minimum

Maximum

+10°C

26 hours

4 days

+20°C

16 hours

3 days

+30°C

12 hours

2 days

Based on relative humidity of max. 70 % and good ventilation. Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Applied Product Ready for Use

Temperature

Foot traffic

Light traffic

Full cure

+10°C

~ 30 hours

~ 48 hours

~ 6 days

+20°C

~ 16 hours

~ 24 hours

~ 4 days

+30°C

~ 12 hours

~ 18 hours

~ 3 days

Note: Times are approximate and will be affected by changing ambient conditions
Consumption

Consumption

Please refer to the System Data Sheet
Application steps

MIXING

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.
After mixing give the material a rest for 10 minutes.
Over mixing must be avoided to minimise air entrainment.
Mixing Tools:
Sikafloor®-304 W must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment.

APPLICATION

Prior to application, confirm substrate moisture content, relative humidity and dew point. Uniformly spread Sikafloor®-304 W by using a short pile nylon roller. Sikafloor®-304 W can also be applied by using a airless spray equipment. A seamless finish can be achieved if a “wet” edge is maintained during application.

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use.
Hardened and/or cured material can only be removed mechanically.

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