Product Data Sheet
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Sikafloor®-3240

2-PART PUR TOUGH-ELASTIC, LOW-VOC, SELF SMOOTHING FLOOR

Sikafloor®-3240 is a two part solvent free, coloured self-smoothing PUR resin, total solid according to Deutsche Bauchemie, with tough-elastic properties. Sikafloor®-3240 makes use of Sika's unique i-Cure technology to improve surface aesthetics and reduce sensitivity for ambient humidity during application.

  • Flexible and tough-elastic
  • Crack-bridging
  • Application on asphalt substrates possible (mastic asphalt)
  • Good chemical and mechanical resistance
  • Solvent-free and low VOC emissions
  • Possible slip resistant surface
  • Easy to apply and to keep clean
  • Economical
  • Not sensitive to moisture
Product Data Sheet
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Usage

  • Smooth wearing course with crack-bridging properties for industrial floors in production and storage facilities, workshops etc.
  • Broadcast wearing course with crack-bridging properties for wet working areas (food and beverage industry etc.), car park decks and loading ramps etc.
  • Applicable on asphalt surfaces, indoor, as in shopping centres, exhibition and storage areas.

Advantages

  • Flexible and tough-elastic
  • Crack-bridging
  • Application on asphalt substrates possible (mastic asphalt)
  • Good chemical and mechanical resistance
  • Solvent-free and low VOC emissions
  • Possible slip resistant surface
  • Easy to apply and to keep clean
  • Economical
  • Not sensitive to moisture

Packaging

Part A

20.25 kg containers

Part B

4.75 kg containers

Part A+B

25.0 kg ready to mix units

Colour

Part A

coloured, liquid

Part B

transparent, liquid

Sikafloor®-3240 is available in broad range of colours.

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings

 

APPROVALS / CERTIFICATES

  • Synthetic resin screed material according to EN 13813:2002, certified by notified factory production control body and provided with the CE mark
  • Coating for surface protection of concrete according to EN 1504-2:2004, certified by notified factory production control body and provided with the CE mark.
  • Emission test according to the German AgBB-scheme and guidelines of the DiBt (AgBB – Committee for Health-related Evaluation of Building Products, DiBt – German Institute for Building Technology). Sampling, testing and evaluation were performed according to ISO-16000, Report No. 392-2015-00212801_D_DE_02, Eurofins Product Testing A/S, Denmark.
  • Fire classification according to DIN EN 13501-1:2010-01: Report No. 20150909/01, MPA Dresden
  • Outgassing VOC emission certificate: Cleanroom Suitable Materials - CSM. Statement of Qualification, ISO-AMCm class -6.9. Tested by IPA report No. SI 1506-767.
  • Biological Resistance Class “Good “–Cleanroom Suitable Materials. Evaluation of the biological resistance in accordance with ISO 846. Tested by IPA report No. SI 1506-767.
  • Riboflavin test according to ISO 4628-1 and VDI 2083-17: Excellent. Tested at Fraunhofer IPA test report SI 1506-767.
  • Paint compatibility according to PV 3.10.7 tested at HQM Induserv Germany, test report 15-08-15203573-001.
  • Crack bridging properties following to EN 1062-7 method A, Test report No: 51-15-0056, IBOS GmbH.
  • Slip resistance class determined according to DIN 51131, test reports 020109-15-16, 020109-15-16a, 020109-15-17, 020109-15-17a, 020109-15-18, 020109-15-18a,
Product Information

Composition

Polyurethane (PUR)

Shelf life

12 months from date of production

Storage conditions

The product 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

~1.4 kg/l

Part B

~1.3 kg/l

Mixed resin (filled 1:0.5)

~1.6 kg/l

Filling 1:0.5 with quartz sand F34 0.1–0.3 mm. All Density values at +23 °C.

Solid content by weight

~100 %

Solid content by volume

~100 %
Technical Information

Shore D Hardness

~ 60 (7 days/23 °C/50 % r.h.)

(DIN 53505)

Abrasion Resistance

~ 65 mg (14 Days/23 °C/50 % r.h.)

(ASTM D 4060)

Tensile Strength

~ 14 N/mm2 (14 days/23 °C/50 % r.h.)

(DIN EN ISO 527-2)

Tensile Adhesion Strength

>1.5 N/mm2 (failure in concrete)

(EN 13892-8)

Chemical Resistance

Resistant to many chemicals. Contact Sika technical service for specific information.

Application

Application Information

Mixing Ratio

Part A : Part B = 81 : 19 (by weight)

Ambient Air Temperature

+10 °C min. / +30 °C max.

Relative Air Humidity

~ 75 - 80 %

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.

Substrate Moisture Content

< 4 % pbw moisture content.
Test method: Sika®-Tramex meter, CM - measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet).

Pot Life

Temperatures

Time

+10 °C

~ 40 minutes

+20 °C

~ 30 minutes

+30 °C

~ 20 minutes

Curing Time

Before overcoating Sikafloor®-3240 allow:

Substrate temperature

Minimum

Maximum

+10 °C

~ 30 hours

~ 72 hours

+20 °C

~ 24 hours

~ 48 hours

+30 °C

~ 16 hours

~ 36 hours

Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. If maximum waiting time is exceeded, the Sikafloor®-3240 surface have to be grinded to get mechanical bonding between the Sikafloor® layers

Applied Product Ready for Use

Temperature

Foot traffic

Light traffic

Full Cure

+10 °C

1 day

3 days

9 days

+20 °C

12 hours

2 days

5 days

+30 °C

8 hours

1 day

3 days

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

Consumption

Please refer to the System Data Sheets
Application steps

MIXING

Prior to mixing, stir part A mechanically. When all of part B has been added to part A mix continuously for 2 minutes until a uniform mix has been achieved. When parts A and B have been mixed, add the quartz sand F34 0.1 – 0.3 mm and mix for a further 2 minutes until a uniform mix has been achieved. To ensure thorough mixing pour the materials into another pail and mix again to achieve a consistent mix. After mixing leave the mixture for 3 minutes to react before applying.
Mixing Tools
Sikafloor®-3240 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.
Sikafloor®-3240 is poured and spread evenly by means of a serrated trowel or pin rake. When used in a self-smoothing system, roll in two directions with a spike roller to ensure even thickness and to remove entrapped air.

CLEANING OF EQUIPMENT

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

CLEANING

To maintain the appearance of the floor after application, Sikafloor®-3240 must have all spillages removed immediately and be regularly cleaned using rotary brush, mechanical scrubbers, scrubber dryer, high pressure washer, wash and vacuum techniques etc., using suitable detergents and waxes.

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