Sikafloor®-29 PurCem®

LEED Rating:

USGBC LEED® Rating. Confirms Section FQ (Indoor Environment Quality), Credit 4.2 Low Emitting Materials Paints and Coatings (VOC content ≤ 50 g/l).

• Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02 08 02 02 003 0 000001 1088, certified by notified factory production control certification body 0086, certificate of conformity of the factory production control 541325, and provided with the CE marking.
• Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02 08 02 02 003 0 000001 1088, certified by notified factory production control certification body 0086, certificate of conformity of the factory production control 541325, and provided with the CE marking.
• 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® in standard and LP versions).
• 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

• Fire classification report according to EN 13501-1 from Exova Warrington Fire for Sikafloor®-31 PurCem® No.31050, dated 24th of March, 2012
• Liquid water transmission rate test report from the Technology Centre, Ref. 15456 dated January 25th, 2012
• Impact resistance values tested at PRA, Ref. No. 75221-151, dated January 11th, 2012

Water-based polyurethane cement hybrid

The package must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5°C and +30°C.

Part A+B+C mixed: ~ 1.97 kg/l ± 0.03 (at +20 °C)

Part A : P : B : C :D = 1 : 0.3  1.1 : 1.2: 13.3 (packaging size = 1.3 : 0.4 : 1.5 : 1.6 : 17.3) by weight. Mix full units only.

3–9 mm

+10 °C min. / +40 °C max.

85 % max.

Beware of condensation!
The substrate and uncured floor must be at least 3 °C above dew point to reduce the risk of condensation or blooming on the floor finish.

+10 °C min. / +40 °C max.

Can be installed on substrates with higher moisture content. No ponding water. Check rising moisture. The substrate needs to be visibly dry and have adequate pull-off strength min 1.5 N/mm².

Before overcoating Sikafloor®-29 PurCem® allow:

Times are approximate and will be affected be changing ambient and substrate conditions, particularly temperature and relative humidity.

~ 2.0 kg/m²/mm

Premix part A with a low speed electric stirrer and then add pigment and mix until uniform. Add part B and mix for 30 seconds. Make sure all pigment is uniformly distributed. Use a double paddle (axis) mixer and gradually add part C & D (aggregate) to the mixed resin. DON’T DUMP!
Allow part C & D 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+P+B+C+D) to ensure complete mixing. Mix full units only.

Mixing tools
Use a low speed electric stirrer (300-400 rpm) for mixing parts A and B. For preparation of the mortar mix use a pan type revolving mixer.

Priming:

Subject to the various applications, different epoxy primers can be used, For standard coves under 100mm in Height, Sikafloor 160/161 should be used. For concrete kerbs and vertical renders, Sikadur 31/33 Can be used, for vertical applications apply the Sikadur 31/33 by way of a 4mm V-Notch Trowel prior to the application of Sikafloor®-29 PurCem® the Thixotropic Nature of the Sikadur 31/33 Adhesives will greatly aid in the ability of the Sikafloor®-29 PurCem® to hold in place on vertical applications.

Application of Sikafloor®-29 PurCem®

Apply the mixed Sikafloor®-29 PurCem® onto the ready primed substrate and compact to the appropriate thickness, then finish the detailing profile with a coving trowel or steel float. Apply Sikafloor®-29 PurCem® while the primer is still tacky. If the primer becomes tack free, reapply the primer.

Top Coats:

Sikafloor®-29 PurCem® Is fully servicable without top coats, however in order to provide a smoother and more colour consistent finish, 1-2 x Coats of Sikafloor 31 PurCem top Coat should be applied.

Clean all tools and application equipment with Thinner C immediately after use. Hardened/cured material can only be mechanically removed.