Sikafloor®-2640
Sikafloor®-2640 is a 2-part, epoxy, coloured, high build, slightly textured, fast curing floor coating and seal coat. It provides a hard wearing, seamless, low maintenance, slip resistant gloss finish when broadcasted with different aggregate grades. Varying thickness’s can be achieved from 0.6–0.8 mm. For medium - heavy wear conditions. Internal use.
- Fast curing
- Low odour
- Low emission
- Low yellowing
- Improved blush resistance
- Seamless and hygienic
- Good mechanical resistance
- Easy application by roller and squeegee
- Gloss finish
- Slip resistant surface to suit clients requirements
- Low maintenance
Usage
- Seal / top coat for slip resistant broadcast systems, such as multi-storey and underground car park decks, maintenance hangars and for wet process areas, e.g. beverage and food industry
- Coloured, slightly textured, roller coat for concrete and cement screeds with normal up to medium heavy wear e.g. storage and assembly halls, maintenance workshops, garages and loading ramps
Advantages
- Fast curing
- Low odour
- Low emission
- Low yellowing
- Improved blush resistance
- Seamless and hygienic
- Good mechanical resistance
- Easy application by roller and squeegee
- Gloss finish
- Slip resistant surface to suit clients requirements
- Low maintenance
Packaging
| Part A | 26.7 kg containers |
| Part B | 3.3 kg containers |
| Part A+B | 30 kg ready to mix units |
Colour
Final floor appearance: Textured gloss finish
| Resin - Part A | coloured, liquid |
| Hardener - Part B | transparent, liquid |
Available in various colour shades.
Applied colours selected from colour charts will be approximate.
For colour matching: Apply colour sample and confirm selected colour under real lighting conditions.
When product is exposed to direct sunlight, there may be some discolouration and colour variation, this has no influence on the function and performance of the floor finish.
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Product Details
ENVIRONMENTAL INFORMATION
- Conformity with LEED v4 MRc 4 (Option 2): Building Product Disclosure and Optimization - Material Ingredients.
- Conformity with LEED v4 EQc 2: Low-Emitting Materials.
- Conformity with LEED v4 MRc 2 (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations.
- Class A+ according to French Regulation on VOC emissions.
- VOC Emission certificate according to AgBB und DIBt approval requirements, Report No: 391_2019_00253501_D_EN_02.
APPROVALS / STANDARDS
- CE Marking and Declaration of Performance to EN 1504-2 - Surface protection product for concrete - Coating
- CE Marking and Declaration of Performance to EN 13813 - Resin screed material for internal use in buildings
Chemical Base
Epoxy
Shelf Life
24 months from date of production
Storage Conditions
The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.
Density
| Part A | ~1.58 kg/l |
| Part B | ~0.98 kg/l |
| Mixed resin | ~1.48 kg/l |
All Density values at +20 °C.
Solid content by weight
~100 %
Total solid epoxy composition acc. to the test method Deutsche Bauchemie e.V. (German Association for construction chemicals)
Solid content by volume
~100 %
Product Declaration
EN 1504-2: Surface protection product for concrete - Coating
EN 13813: Resin screed material for internal use in buildings
Shore D Hardness
| ~78 (7 days / +23 °C) | (DIN 53 505) |
Abrasion Resistance
| ~935 mg (H22/1000/1000) (7 days / +23 °C) | (DIN 53109) |
Tensile Adhesion Strength
| > 1.5 N/mm² (failure in concrete) | (ISO 4624) |
Application
Mixing Ratio
Part A : Part B = 89 : 11 (by weight)
Ambient Air Temperature
+5 °C min. / +30 °C max.
Relative Air Humidity
80 % max
Dew Point
Beware of condensation.
The substrate and uncured applied floor material must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the floor finish.
Low temperatures and high humidity conditions increase the probability of blooming.
Substrate Temperature
+5 °C min. / +30 °C max.
Substrate Moisture Content
≤ 4 % parts by weight.
Test method: Sika®-Tramex meter, CM-measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene-sheet).
Pot Life
| Temperature | Time |
| +10 °C | ~30 minutes |
| +20 °C | ~20 minutes |
| +30 °C | ~15 minutes |
Curing Time
| Substrate temperature | Minimum | Maximum |
| +10 °C | ~12 hours | ~3 days |
| +20 °C | ~6 hours | ~2 days |
| +30 °C | ~3 hours | ~1 day |
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 | ~12 hours | ~15 hours | ~24 hours |
| +20 °C | ~6 hours | ~11 hours | ~14 hours |
| +30 °C | ~3 hours | ~9 hours | ~12 hours |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Consumption
Refer to the following System Data Sheets:
- Sikafloor® MultiDur ET-20
- Sikafloor® MultiDur EB-19
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MIXING
Prior to mixing all parts, mix separately Part A (resin) thoroughly using an electric single paddle mixer (300 - 400 rpm) or other suitable equipment. Add Part B (hardener) to Part A and mix Part A + B continuously for 3 minutes until a uniformly consistent mix has been achieved. To ensure thorough mixing pour materials into a clean container and mix again for at least 1 minute to achieve a smooth consistent mix. Excessive mixing must be avoided to minimise air entrainment. During the final mixing stage, scrape down the sides and bottom of the mixing container with a straight edge trowel or spatula at least once to ensure complete mixing. Mix full units only. Mixing time for A+B = ~4 minutes.
APPLICATION
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.
Prior to application, confirm substrate moisture content, relative air humidity, dew point, substrate, air and product temperatures. If moisture content > 4% parts by weight, Sikafloor® EpoCem® may be applied as a Temporary Moisture Barrier (T.M.B.) system.
Primer
Pour mixed Sikafloor®-150 /-151 primer onto the prepared substrate and apply by brush, roller or squeegee then back roller in two directions at right angles to each other. Ensure a continuous, pore free coat covers the substrate. If necessary, apply two priming coats.
Confirm waiting /overcoating time has been achieved before applying subsequent products. Refer to individual primer Product Data Sheet.
Levelling
Rough surfaces must be levelled first using Sikafloor®-150/-151 levelling mortar. Confirm waiting /overcoating time has been achieved before applying subsequent products. Refer to individual Product Data Sheet.
Textured coating
Pour mixed Sikafloor®-2640 onto the prepared substrate and apply using a short-piled roller in two directions at right angles to each other. A seamless finish can be achieved if a ‘wet’ edge is maintained during application.
Seal coat
After waiting the appropriate overcoating time / curing, pour the mixed Sikafloor®-2640 onto the textured coating and spread evenly using a squeegee at the required consumption rate ( 0.6–0.8 kg/m2 ) to completely encapsulate the sand. Then using a short-piled roller, back roller in two directions at right angles to each other. A seamless finish can be achieved if a ‘wet’ edge is maintained during application.
CLEANING OF TOOLS
Clean all tools and application equipment with Thinner C immediately after use. Hardened material can only be removed mechanically.
CLEANING
To maintain the appearance of the floor after application, Sikafloor®-2640 must have all spillages removed immediately and must be regularly cleaned using rotary brush, mechanical scrubbers, scrubber dryer, high pressure washer, wash and vacuum techniques etc. using suitable detergents and waxes. Refer to Sika® Method Statement: Sikafloor®-Cleaning Regime.