Product Data Sheet Show all documents
Sikafloor®-2650

Sikafloor®-2650

Low odour, fast curing, smooth, epoxy floor coating

Sikafloor®-2650 is a two-part, low odour, fast curing, epoxy, coloured, roller coating that provides a hard wearing, seamless, low maintenance, smooth gloss finish.

  • Fast curing
  • Good mechanical resistance
  • Good impact resistance
  • Good yellowing resistance
  • Very good blush resistance
  • Low VOC emissions
  • Low odour
  • Low maintenance
 
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Product Data Sheet Show all documents

Usage

The Product is used as a:       
  • Smooth wearing roller coating on concrete and cementitious screed substrates.
       Please note: the Product may only be used for interior applications.

Advantages

  • Fast curing
  • Good mechanical resistance
  • Good impact resistance
  • Good yellowing resistance
  • Very good blush resistance
  • Low VOC emissions
  • Low odour
  • Low maintenance
 

Packaging

Container Part A

8.5 kg or 25.5 kg

Container Part B

1.5 kg or 4.5 kg

Container Part A + Part B

10 kg or 30 kg ready to mix unit

Refer to the current price list for available packaging variations.

Colour

Part A

Coloured, liquid

Part B

Transparent, liquid

Cured Appearance

Gloss finish

Available in RAL 7032 and RAL 7035, other colours on request. Please contact Sika® Customer Services for availability.

Exposure to Direct Sunlight

Note: When the 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 coating.

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4.

APPROVALS / STANDARDS

  • CE marking and declaration of performance based on EN 13813:2002 Screed material and floor screeds — Screed material — Properties and requirements — Synthetic resin screed material.

  • CE marking and declaration of performance based on EN 1504-2:2004 Products and systems for the protection and repair of concrete structures — Surface protection systems for concrete — Coating. 
Product Information

Chemical Base

Solvent-free epoxy

Shelf Life

12 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.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Density

Part A

~1.53 kg/l

Part B

~1.00 kg/l

Mixed Product

~1.41 kg/l

Solid content by mass

~100 %

Solid content by volume

~100 %
Technical Information

Tensile adhesion strength

> 1.5 N/mm² (failure in concrete)

(EN 1542)

Service Temperature

IMPORTANT

Simultaneous Mechanical and Chemical Strain

While the Product is exposed to temperatures up to +60 °C, simultaneous mechanical or chemical strain may cause damage to the Product.

  1. Do not expose the Product to chemical or mechanical strain at elevated temperatures. 

Application

Application Information

Mixing Ratio

Part A : Part B (by weight)

85 : 15

Sikafloor®-54 Booster

Note: Add between 2 % and 4 % of Sikafloor®-54 Booster, by weight of the mixed resin, to the Product to decrease the waiting times.

Product Temperature

Minimum

+8 °C

Maximum

+23 °C

Ambient Air Temperature

Minimum

+8 °C

Maximum

+30 °C

Relative Air Humidity

Maximum

80 % r.h.

Minimum

20 % r.h.

Dew Point

Beware of condensation. The substrate and uncured applied product must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the surface of the applied product. Low temperatures and high humidity conditions increase the probability of blooming.

Substrate Temperature

Minimum

+8 °C

Maximum

+23 °C

Substrate Moisture Content

Refer to the Product Data Sheets of the individual primer

Pot Life

Temperature

Without Sikafloor®-54 Booster

With 2 % Sikafloor®-54 Booster

With 4 % Sikafloor®-54 Booster

+8 °C

~90 minutes

~75 minutes

~70 minutes

+10 °C

~90 minutes

~70 minutes

~55 minutes

+15 °C

~50 minutes

~40 minutes

~35 minutes

+23 °C

~30 minutes

~15 minutes

-

IMPORTANT

Exothermic Reaction

Do not leave the mixed product in its container after the end of the pot life, as the exothermic reaction of the product leads to foaming.

  1. At the end of the Product's pot life, fill the container completely with quartz sand to stop the exothermic reaction.

Applied Product Ready for Use

WITHOUT Sikafloor®-54 Booster

Temperature

Foot Traffic

Light Traffic

Full Cure

+8 °C

~11 hours

~16 hours

~36 hours

+10 °C

~8 hours

~14 hours

~24 hours

+15 °C

~6 hours

~7 hours

~18 hours

+23 °C

~4 hours

~6 hours

~8 hours

WITH 2 % Sikafloor®-54 Booster

Temperature

Foot Traffic

Light Traffic

Full Cure

+8 °C

~10 hours

~14 hours

~26 hours

+10 °C

~7 hours

~10 hours

~18 hours

+15 °C

~5 hours

~6 hours

~12 hours

+23 °C

~3 hours

~3 hours

~6 hours

WITH 4 % Sikafloor®-54 Booster

Temperature

Foot Traffic

Light Traffic

Full Cure

+8 °C

~9 hours

~12 hours

~24 hours

+10 °C

~6 hours

~8 hours

~12 hours

+15 °C

~4 hours

~5 hours

~8 hours

Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.
Consumption

Consumption

Function

Consumption

Roller Coat for Smooth Systems

0.4 – 0.5 kg/m²
Application steps

EQUIPMENT

MIXING EQUIPMENT: Electric double paddle mixer (>700 W, 300 to 400 rpm).

APPLICATION EQUIPMENT: Short pile roller. 

SUBSTRATE QUALITY

Cementitious substrates must be structurally sound and of sufficient compressive strength (minimum 25 N/mm2), with a minimum tensile strength of 1.5 N/mm2.

Substrates must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.

 

MIXING

Dosage of Sikafloor®-54 Booster at Higher Ambient Temperatures

If more than 2 % of Sikafloor®-54 Booster is added at ambient temperatures higher than +15 °C, the exothermic reaction increases and the product will start foaming very quickly.

  1. Mix Part A (resin) for ~30 seconds.
  2. Add Part B (hardener) to Part A.
  3. Mix continuously for 3 minutes, until a uniform mix is achieved.
  4. If necessary, gradually add the required amount of Sikafloor®-54 Booster.
  5. If additional materials were added, mix for a further 2 minutes until a uniform mix is achieved.
  6. To ensure thorough mixing, pour materials into another container and mix again to achieve a smooth and uniform mix.
  7. During the final mixing stage, scrape down the sides and bottom of the mixing container with a flat or straight edge trowel at least once to ensure complete mixing.

APPLICATION

No Application on Rising Moisture

Do not apply on substrates with rising moisture.

      

Protect from Moisture

After application, protect the Product from damp, condensation and direct water contact for at least 24 hours.

      

Temporary Heating

If temporary heating is required, do not use gas, oil, paraffin or other fossil fuel heaters. These produce large quantities of both carbon dioxide and water vapour, which may adversely affect the finish. For heating, use only electric powered warm air blower systems.

      

Pin Holes

If the Product is applied on porous substrates during rising temperatures, pin holes may form from rising air. Apply the Product during falling temperatures.

 

Closing Pin Holes

If pin holes are present after the Product has cured, blistering may occur in the subsequent layer. Close any pin holes using the following steps.

  1. Lightly grind the cured surface.
  2. Apply a scratch coat consisting of the Product mixed with ~3 % of Sika® Extender T.

      

ROLLER COATING

  1. Pour the mixed Product onto the substrate.

    Note: The consumption is specified in Application Information.

  2. Back roll the surface in two directions at right angles with a short pile roller.

    Note: Maintain a "wet edge" during application for a seamless finish.

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