Sikafloor®-2650
Sikafloor®-2650 is a 2-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
Usage
The Product is used as a:- Smooth wearing roller coating on concrete and cementitious screed substrates
- 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 | 25.5 kg |
Container Part B | 4.5 kg |
Container Part A + Part B | 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
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
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 %
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.
- Do not expose the Product to chemical or mechanical strain at elevated temperatures
Chemical Resistance
Resistant to many chemicals. Contact Sika Technical Services for specific infomration.
Application
Mixing Ratio
Part A : Part B (by weight) | 85 : 15 (by weight) |
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 | ~70 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.
- 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 ADDED
| 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 ADDED
| 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 ADDED
| 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
| Function | Consumption |
| Roller coat for smooth systems | ~0.5–0.6 kg/m² |
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
IMPORTANT
Higher amounts 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.
- Mix Part A (resin) for ~30 seconds.
- Add Part B (hardener) to Part A.
- Mix continuously for 3 minutes, until a uniform mix is achieved.
- If necessary, gradually add the required amount of booster.
- If additional materials were added, mix for a further 2 minutes until a uniform mix is achieved.
- To ensure thorough mixing, pour materials into another container and mix again to achieve a smooth and uniform mix.
- 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
IMPORTANT
No application on rising moisture
Do not apply on substrates with rising moisture.
IMPORTANT
Protect from moisture
After application, protect the Product from damp, condensation and direct water contact for at least 24 hours.
IMPORTANT
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.
IMPORTANT
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.
IMPORTANT
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.
- Lightly grind the cured surface.
- Apply a scratch coat consisting of the Product mixed with ~3 % of Sika® Extender T.
ROLLER COATING
- Pour the mixed Product onto the substrate.
- Note: The consumption is specified in Application Information.
- 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.
CLEANING OF TOOLS
Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be removed mechanically.