Sikafloor®-3240
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
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 |
| Part B | 4,75 kg |
| Part A+B | 25,0 kg ready to mix units |
Colour
| Part A | coloured, liquid |
| Part B | transparent, liquid |
Sikafloor®-3240 is available in a variety of country-specific colours.
In the case of light shades (yellow or orange range), colour deviations may occur due to filling with quartz sand
Product Details
SUSTAINABILITY
LEED Produktinformation
Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings
MINERGIE-ECO product information
VOC content < 1 % (ready-to-use product)
CERTIFICATES AND TEST REPORTS
- 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,
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.
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 mass
~ 100%
Solid content by volume
~ 100%
Shore D Hardness
| ~ 60 | (7 days / +23°C / 50% r.h.) |
Abrasion resistance
| ~ 65 mg | (14 days / +23°C / 50% r.h.) |
Tensile strength
| ~ 14 N/mm² | (14 days / +23°C / 50% r.h.) |
Tensile adhesion strength
| > 1,5 N/mm² | (failure in concrete) |
Chemical resistance
See chemical resistance list
Application
Mixing ratio
Part A : Part B = 81 : 19 (by weight)
Ambient air temperature
Min. +10°C / max. +30°C
The minimum temperature must not be lowered even during curing.
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
Minimum +10°C / maximum +30°C.
The minimum temperature must not be lowered even during curing.
Substrate moisture content
The specifications of the system primers mentioned under "Coating structure" are decisive.
Pot Life
| Temperatures | Time |
| + 10°C | ~ 40 Minuten |
| + 20°C | ~ 30 Minuten |
| + 30°C | ~ 20 Minuten |
The times given above are influenced by changing conditions, especially temperature and humidity.
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
APPLICATION INSTRUCTIONS
MIXING
Stir component A mechanically before mixing. Carefully mix components A + B in the prescribed mixing ratio before application. To prevent splashing or even spilling of the liquid, mix the components for a short time at low speed with an infinitely variable electric stirrer. Then increase the stirring speed to a maximum of 300 rpm for intensive mixing. After approx. 3 minutes, add the intended proportions of quartz sand. The mixing time is at least 3 minutes and is only finished when a homogeneous mixture is obtained. Transfer (repot) the mixed material into a clean container and mix again briefly as described above.
When mixing and repotting the products, suitable protective clothing must be worn: e.g. tight-fitting safety goggles, protective gloves, long-sleeved shirt, work trousers, rubber apron and protective shoes.
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APPLICATION
Before application, determine substrate moisture, humidity and dew point.
As a primer for mastic asphalt surfaces
Sikafloor®-3240 is poured out and evenly distributed with a rubber squeegee. To achieve even wetting of the substrate, the material should be worked vigorously into the surface. Any necessary quartz sand sprinkling is done after a waiting time of 15 - 20 minutes.
As a levelling layer for mastic asphalt surfaces
Rough surfaces must be levelled beforehand. Apply the levelling layer with a squeegee or trowel to the desired thickness.
As a flow coating
Sikafloor®-3240 is poured out and evenly distributed with a notched trowel. Then immediately level and deaerate with a spiked roller in a cross pattern.
As a bedding layer
Sikafloor®-3240 is poured out and evenly distributed with a notched trowel. Immediately level and deaerate the evenly laid layer with a spiked roller in a cross pattern. Then sprinkle the surface first lightly, then in excess with quartz sand.
CLEANING OF EQUIPMENT
Clean tools immediately with Sika® Thinner.
Cured material can only be removed mechanically.