Sika Sikafloor 280 is a three part epoxy mortar, consisting of an epoxy binder and quartz sand with a maximum grain size of 1.2 mm.
Sika Sikafloor 280 is formulated for use as an epoxy screed with a layer thickness of 2–10 mm. This mortar screed is suitable for heavy mechanical wear environments such as in the metal industry, print shops, loading ramps, etc. Sika Sikafloor 280 is also suitable as a repair mortar for floors and civil structures (e.g. bridges etc.) or embedding of balustrades and nosings etc.
- Very high abrasion resistance
- Very high impact resistance
- High compressive and flexural strength
- High bond strength
- Supplied in pre-batched units
- Efficient and easy application
The concrete substrate must be sound and of sufficient compressive strength (minimum 25 N/mm2) with a minimum pull off strength of 1.5 N/mm2. The substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc. Concrete substrates must be prepared mechanically
using abrasive blast cleaning or scarifying equipment to remove cement laitance and achieve an open textured surface.
Weak concrete must be removed and surface defects such as blow holes and voids must be fully exposed. Repairs to the substrate, filling of blowholes / voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials. All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum.
Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved. When parts A and B have been mixed, add the quartz sand and if required the Extender T and mix for a further 2 minutes until a uniform mix has been achieved. To ensure thorough mixing pour materials into another container and mix again to achieve a consistent mix. Over mixing must be avoided to minimise air entrainment
Prior to application, confirm substrate moisture content, relative humidity and dew point. If substrate moisture content is more than 4 % pbw, Sikafloor® EpoCem® may be applied as a temporary moisture barrier (T.M.B.) system. For strongly absorbent substrates apply a primer coat. The primer has to be cured tack free before the bonding bridge is applied.
Make sure that a continuous, pore free film covers the substrate. Apply Sikafloor®-156/-161 by brush, roller or squeegee. Preferred application is by using a squeegee and then backrolling crosswise.
Bonding bridge / impregnation:
Apply the mortar screed evenly on the tacky bonding bridge, using levelling boards and guide rails as necessary. After a short waiting time compact and finish the
mortar with a trowel or Teflon coated power float (usually 20 - 90 rpm). Power floats can only be used on mortar layers > 8 mm.
- Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02 08 01 02 007 0000001 1008, certified by notified factory production
control certification body 0921, certificate of conformity of the factory production control 2017, and provided with the CE marking
- Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02 08 01 02 007 0000001 1008, certified by notified factory
production control certification body 0921, certificate of conformity of the factory production control 2017, and provided with the CE marking
- Suitable as a repair material for concrete roads acc. German standard MEB-3. Report No. P 1658, Polymer Institut, Germany.
|Stock Colours:||Light Grey|
|VOC Content:||500 g/L|
|Suitable Substrates:||For concrete flooring|
|Application Method:||Levelling Boards and Guide Rails|
|Theoretical Coverage:||2.2 Kg per m2 per mm|
|Wet Film Thickness (WFT):|
|Dry Film Thickness (DFT):|
|Pot Life:||40 minutes at 20°C|
|Surface Dry:||See datasheet|
|Fully Cured:||See datasheet|
|Cleaner / Thinner:||Clean all tools and application equipment with Sika Thinner C immediately after use. Hardened and / or cured material can only be removed mechanically.|
|Shelf Life:||24 months from date of production in original unopened containers|
|Packaging:||Available in 27.5 Kg Litres|
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.