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Sikafloor 20 N PurCem

Sikafloor 20 N PurCem View larger
Typical Coverage (per coat)3 - 18kg per m²
Touch Dry12 Hours
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.

Sikafloor 20 N PurCem is a multi-component, resin rich, smooth trowel grade, coloured polyurethane modified, cement and aggregate screed suitable for floors subject to heavy loading, abrasion and chemical exposure

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£65.64 + VAT

Sikafloor 20 N PurCem is a multi-component, resin rich, smooth trowel grade, coloured polyurethane modified, cement and aggregate screed suitable for floors subject to heavy loading, abrasion and chemical exposure. It has a textured aggregate surface providing medium to heavy profile slip resistance and is typically installed at 6 to 9mm thick.

Uses: In areas subject to heavy loading, abrasion and high chemical exposure, to provide a hard wearing surface, such as in:

  • Food processing plants, in wet or dry process areas, freezers and coolers, thermal shock areas
  • Chemical plants
  • Laboratories
  • Workshops
  • Suitable for concrete protection providing physical resistance (Principle 5, method 5.1 of EN 1504-9)
  • Suitable for concrete protection providing chemical resistance (Principle 6, method 6.1 of EN 1504-9)

Features and Benefits:

  • Fluid consistency requires less labour to install than conventional heavy duty modified PU trowel grade screeds
  • Excellent chemical resistance.  Resists a wide range of organic and inorganic acids, alkalis, amines, salts and solvents.
  • Similar coefficient of thermal expansion to concrete, allowing movement with the substrate through normal thermal cycling. It will perform and retain its physical characteristics through a wide temperature range from -40°C (-40°F) up to +160°C (320°F)
  • Steam cleanable at 9mm thick
  • Bond strength in excess of the tensile strength of concrete. Concrete will fail first
  • Non taint, odourless
  • VOC free
  • High mechanical resistance.
  • Slip resistance. Natural textured surface provides anti-slip traction
  • High abrasion resistance
  • Rapid one step application. Normally, no concrete primer or sealer required
  • Can be applied on to 7 to 10 day old concrete after adequate preparation and with a tensile bond strength in excess of 1.5 MPa (218 psi)
  • Seamless, no additional expansion joints are necessary; simply maintain and extend existing expansion joints up through the Sikafloor PurCem flooring system
  • Easily maintained
  • Wide range of application temperatures +10°C - +40°C

System Structure

Standard System Build-up Sikafloor 20 N PurCem
- Bodycoat Sikafloor 20 N PurCem

Alternative on green concrete:
- Scratch coat of Sikafloor 21 N PurCem min 1.5mm thick, lightly broadcast with Sika Quartz Sand 0.4 – 0.7mm.
- Bodycoat of Sikafloor 20 N PurCem 6 – 9mm

Alternative when used with Sikafloor epoxy primer:
- Prime with Sikafloor 155 WN, Sikafloor 156, Sikafloor 160, Sikafloor 161 any of which must be fully blinded with Sika Quartz Sand 0.4 - 0.7mm for the subsequent application of Sikafloor 20 N PurCem.
- Wear layer of Sikafloor 20 N PurCem

Approvals & Standards

  • Conforms Section EQ (Indoor Environmental Quality), Credit 4.2 Low-Emitting Materials Paints and Coatings Calculated VOC content ≤ 50 g/l
  • Polyurethane screed for concrete protection according to the requirements of EN 1504-2 and conforms to the requirements of EN 13813: 2002, DoP 02 08 02 02 001 0
  • 000001 1088, certified by Factory Production Control Body, 0086, certificate 541325, and provided with the CE-mark.
  • Fire classification report according to EN 13501-1 from Exova Warrington Fire for Sikafloor®-20 PurCem® No.317045, dated 24th of March, 2012
  • Liquid water transmission rate test report from the Technology Centre, Ref. 15456 dated January 25th, 2012
  • Abrasion resistance tests performed by Face Consultants Ltd., according to BS 8204- 2:2003, report ref. FC/12/3850, dated January 17th, 2012. (Tests performed on Sikafloor® -20/21 PurCem® standard versions)
  • Impact resistance values tested at PRA, Ref. nº 75221-151a, dated February 15th, 2012
  • Thermal expansion coefficient and freeze-thaw cycle resistance performed at RWTH / IBAC, report nº M-1614 dated May 29th, 2012.

Concerning contact with foodstuffs, it conforms to the requirements of:

  • EN1186, EN 13130, and prCEN/TS 14234 standards, and the Decree on Consumer Goods, representing the conversion of directives 89/109/EEC, 90/128/EEC and 2002/72/EC for contact with food stuffs, according to test report by ISEGA, 32758 U11 and 32759 U11, both dated December 6th, 2011. (Tests performed on Sikafloor® -20/21/22/29 and 31 PurCem®)
  • USDA. Acceptance for use in food plants in the USA
  • Canadian Food Inspection Agency acceptance for use in food plants in Canada.
  • British Standards Specifications (BSS) acceptance for use in the UK. Campden and Chorleywood Food Research Association, Ref. S/REP/125424/1a and 2a, dated 8th February, 2012

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Free delivery on orders over £75 (terms & conditions)

• Deliveries will be made within 3 working days (standard delivery)
• You must be UK mainland based for the free delivery offer.
• Postcodes listed are excluded from the free delivery and priced below.

Please note: deliveries will need to be signed for at the point of delivery.

UK Mainland OnlyUp to £75.00£75.01 +
Standard (2/3 working days)£8.00FREE
Next Day£15.00£15.00
Next day before 09:00am£30.00£30.00
Next day before 10:30am£25.00£25.00
Next day before 12:00pm£20.00£20.00
Saturday Delivery£35.00£35.00














£25 (Standard 2-3 Day Delivery Only)

AB30, AB31, AB32, AB33, AB34, AB35, AB36, AB37, AB38, AB44, AB45, AB46, AB47, AB48, AB49, AB50, AB51, AB52, AB53, AB54, AB55, AB56, FK, G83, IV, KW1, KW2, KW3, KW4, KW5, KW6, KW7, KW8, KW9, KW10, KW11, KW12, KW13, KW14, PA, PH, HS, KA27, KA28, ZE

£35 (Standard 2-3 Day Delivery Only)

BT, IM

£50 (Standard 2-3 Day Delivery Only)

JE, GY

Please note that all carriage prices are quoted without V.A.T. at the current rate.

Scottish Islands - outside standard distribution area, please contact us for a quote.

There may be an exception for heavy goods when purchased in quantity where we will contact you to advise any additional charges.

Next Day delivery and Saturday Service is available on stocked items for orders received before 11:00am only.

Because of the nature of our products, we use specially selected carriers to ensure safe and prompt delivery to you.

Please note: Any time or date named by Rawlins Paints Limited for delivery is given and intended as an estimate only and Rawlins Paints Limited shall not be liable to make good any damage or loss whether arising directly or indirectly out of a delay in delivery. Deliveries are made using a reliable nationwide carrier. Although over 99% of consignments arrive on time, we recommend that no labour is employed to undertake work until materials have arrived on site.

Sikafloor 20 N PurCem TDS

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Sikafloor 20 N PurCem MSDS

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Sikafloor PurCem Brochure

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