Sika Sikafloor 21 PurCem is used as a scratch coat primer, base coat and wear coat layer in Sikafloor®Pur-Cem® system build ups, in areas of medium to heavy loading, high chemical exposure and abrasion.
Sikafloor®-21 PurCem® may only be used by experienced professionals.
The surface must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc. All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by vacuum. Pull of strength shall not be less than 1.5 N/mm2. If in doubt apply a test area first.
Premix part A with a low speed electric stirrer and then add part B and mix for 30 seconds. For the colour pack version, premix part A neutral with a low speed electric stirrer and add part D to it. Mix until a uniform colour is achieved. Ad part B and mix for 30 seconds. Use a double paddle (axis) mixer and gradually add part C (aggregate) to the mixed resin. Allow part C to blend for further 2 minutes minimum, to ensure complete mixing and a uniform moist mix is obtained. During the operations, scrape down the sides and bottom of the container with a flat or straight edge trowel at least once (parts A+B+C) to ensure complete mixing.
Use a low speed electric stirrer (300 - 400 rpm) for mixing parts A and B. For preparation of the mortar mix use a double paddle mixer. Prior to application, confirm substrate moisture content, relative humidity and dew point. As a scratch coat Sikafloor®-21 PurCem® can be applied using a steel trowel. As a body coat Sikafloor®-21 PurCem® can be applied using a toothed trowel or pin screed, to the desired thickness, or a steel trowel. Remove air with a spike roller. For further details please refer to the related system data sheet.
Sika Sikafloor 21 PurCem is used within the following systems:
|Type:||Water Based Screed|
|Stock Colours:||RAL 1001, RAL 1006, RAL 3009, RAL 5015, RAL 6010, RAL 7032, RAL 7035, RAL 7037, RAL 7038|
|VOC Content:||140 g/L|
|Suitable Substrates:||For flooring|
|Application Method:||Steel Trowel, Toothed Trowel, Pin Screed, Spike Roller|
|Theoretical Coverage:||1.93 Kg per m2 per mm|
|Wet Film Thickness (WFT):|
|Dry Film Thickness (DFT):|
|Pot Life:||22 - 25 minutes at 20°C|
|Surface Dry:||See datasheet|
|Overcoatable:||Between 24 hours and 48 hours at 20°C|
|Fully Cured:||See datasheet|
|Cleaner / Thinner:||Clean all tools and application equipment with Sika Thinner C immediately after use. Hardened / cured material can only be mechanically removed.|
|Shelf Life:||Part A: 12 months, Part B: 12 months, Part C: 6 months, Part D: 24 months. Protect all from freezing.|
|Packaging:||Available in 21 Kg|
The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.
Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.