
Sikafloor®-29 PurCem®
Sikafloor®-29 PurCem® is a multi-component, polyurethane hybrid mortar. It has high impact and mechanical resistance, good resistance against chemicals and wear. It is typically installed at 3 -9 mm thickness.
- Good wear resistance
- High mechanical and impact resistance
- High softening point
- Good chemical resistance
- Non tainting /odourless
- Fast curing
- VOC free and environmental friendly
- Can be applied to substrates with high moisture content (7 days old or mature damp concrete)
Usage
Sikafloor® -29 PurCem® is used as a coving mortar, detailing and vertical rendering with Sikafloor® PurCem® floor systems.Advantages
- Good wear resistance
- High mechanical and impact resistance
- High softening point
- Good chemical resistance
- Non tainting /odourless
- Fast curing
- VOC free and environmental friendly
- Can be applied to substrates with high moisture content (7 days old or mature damp concrete)
Packaging
Part A | 1.50 kg plastic drum |
Part B | 1.50 kg plastic jerrycan |
Part C | 19.0 kg plastic bags |
Part A+B+C | 22.0 kg ready to mix units |
Colour
Part A | coloured liquid |
Part B | brown liquid |
Part C | natural grey powder |
Product Details
ENVIRONMENTAL INFORMATION
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.
APPROVALS / STANDARDS
- Polyurethane screed for concrete protection according to the requirements of EN 1504-2:2004 and conforms to the requirements of EN 13813: 2002, DoP 02 08 02 02 003 0 000001 1088, certified by Factory Production Control Body, 0086, certificate 541325, and provided with the CE-mark.
- 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
Chemical Base
Water-based polyurethane cement hybrid
Shelf Life
Part A | 12 months from date of production. Protect from freezing. |
Part B | 12 months from date of production. Protect from freezing. |
Part C | 6 months from date of production. Must be protected from humidity. |
Storage Conditions
The package must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5°C and +30°C.
Density
Part A+B+C mixed: ~ 1.97 kg/l ± 0.03 (at +20°C)
Shore Hardness
Shore D: 80 - 85 | (ASTM D 2240) |
Compressive Strength
> 44 N/mm2 after 28 days at +23°C / 50% r.h. | (BS EN 13892-2) |
Flexural Strength
> 8 N/mm2 after 28 days at +23°C / 50% r.h. | (BS EN 13892-2) |
Tensile Adhesion Strength
concrete failure | (EN 1542) |
Application
Mixing Ratio
Part A : B : C = 1 : 1 : 11.7 (packaging size = 1.5 : 1.5 : 19) by weight. Mix full units only.
Ambient Air Temperature
+10°C min. / +40°C max.
Layer Thickness
3 – 9 mm
Relative Air Humidity
85% max.
Dew Point
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.
Substrate Temperature
+10°C min. / +40ºC
Substrate Moisture Content
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.
Pot Life
Temperatures | Time |
+10°C | ~ 35 - 40 minutes |
+20°C | ~ 22 - 25 minutes |
+30°C | ~ 15 – 18 minutes |
+35°C | ~ 12 - 15 minutes |
Curing Time
Before overcoating Sikafloor®-29 PurCem® allow:
Substrate temperature | Minimum | Maximum |
+10°C | 20 hours | 72 hours |
+20°C | 10 hours | 48 hours |
+30°C | 5 hours | 24 hours |
+35°C | 5 hours | 24 hours |
Times are approximate and will be affected be changing ambient and substrate conditions, particularly temperature and relative humidity.
Consumption
~ 2.0 kg/m2/mm
MIXING
Premix part A with a low speed electric stirrer and then add part B and mix for 30 seconds. Make sure all pigment is uniformly distributed. Use a double paddle (axis) mixer and gradually add 1 part C (aggregate) to the mixed resin. DON’T DUMP!
For the colourpack version, premix 1 part Aneutral with a low speed electric stirrer and add 1 part D to it. Mix until a uniform colour is achieved. Ad 1 part B and mix for 30 seconds. Make sure all pigment is uniformly distributed. Use a double paddle (axis) mixer and gradually add 2 part C (aggregate) to the mixed resin. DON’T DUMP!
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. 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.
APPLICATION
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.
CLEANING OF TOOLS
Clean all tools and application equipment with Thinner C immediately after use. Hardened/cured Sikafloor®-29 PurCem® can only be mechanically removed.