Sika Sikafloor 2650

Sika 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.

Best Uses

Sika Sikafloor 2650 is suitable as a smooth wearing roller coating on concrete and cementitious screed substrates.

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

Sika Sikafloor 2650 may only be used by experienced professionals. Please note: the Product may only be used for interior applications.

Application

• 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.

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 Sikafloor®-54 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
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. 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. 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.