Sikafloor®-31 PurCem® (AE)
Sikafloor®-31 PurCem® (AE) is a multi-component, water-based coloured polyurethane hybrid flooring coating. It has a matt, impervious, chemical resistant, hard wearing surface. Suitable for use in hot and tropical climatic conditions.
- Good wear resistance
- High mechanical resistance
- Good chemical resistance
- Non tainting /odourless
- VOC free
- Can be applied to substrates with high moisture content (7 days old or mature damp concrete)
Usage
Sikafloor®-31 PurCem® (AE) is used as top and wear coat layer in Sikafloor® PurCem® anti-slip system build-ups and coating on horizontal surfacesAdvantages
- Good wear resistance
- High mechanical resistance
- Good chemical resistance
- Non tainting /odourless
- VOC free
- Can be applied to substrates with high moisture content (7 days old or mature damp concrete)
Packaging
Part A | 1.50 kg plastic drums |
Part B | 1.40 kg plastic jerry can |
Part D | 1.80 kg plastic bags |
Part A + B + D | 4.70 kg ready to mix units |
Colour
Part A | White liquid |
Part B | Brown liquid |
Part D | Colourpack as per list below |
Available colours: beige, maize yellow, dusty grey, oxide red, grass green, slate grey, traffic grey.
Product Details
APPROVALS / CERTIFICATES
- 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).
- Campden and Chorleywood Food Research Association, reference S/REP/125424/1a and 2a, dated 8th February, 2012
- Liquid water transmission rate test report from the Technology Centre, reference 15456 dated January 25th, 2012
- Impact resistance values tested at PRA, reference no. 75221-151, dated January 11th, 2012
Composition
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 D | 12 months from date of productions. 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 + D mixed: ~1.25 kg/l (+20 °C)
Shore D Hardness
~80 | (ASTM D 2240) |
Tensile Adhesion Strength
> 2.0 N/mm2 (failure in concrete) | (EN 1542) |
Application
Mixing Ratio
Mix full units only.
Ambient Air Temperature
+10 °C min. / +40 °C max.
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. / +40 °C max.
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 min |
+20 °C | ~22 - 25 min |
+30 °C | ~15 - 18 min |
+35 °C | ~12 - 15 min |
Curing Time
Before overcoating Sikafloor®-31 PurCem® (AE) allow:
Substrate temperature | Minimum | Maximum |
+10 °C | 16 h | 72 h |
+20 °C | 8 h | 48 h |
+30 °C | 4 h | 24 h |
+35 °C | 4 h | 24 h |
Times are approximate and will be affected be changing ambient and substrate conditions, particularly temperature and relative humidity.
Consumption
~0.4 - 1.0 kg/m2 (depending on the system build-up)
MIXING
Premix Part A with a low speed electric stirrer and then add Part B and mix for 30 seconds, until a uniform colour is achieved.
Use a double paddle (axis) mixer and gradually add Part D (pigment powder) to the mixed resin. Allow Part 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 + B + D) to ensure complete mixing.
Mixing Tools
A low speed electric stirrer (300 - 400 r.p.m.) and an Exomixer-type mixing paddle suited to the size of the mixing container to minimise the air entrapment.
APPLICATION
On smooth screeds apply the mixed Sikafloor®-31 PurCem® (AE) using a short or medium nap roller directly from a paint tray. On broadcasted screeds pour the material and spread it using a squeegee and then back-roll the excess using a medium knap roller.
CLEANING OF EQUIPMENT
Clean all tools and application equipment with Thinner C immediately after use. Hardened / cured material can only be mechanically removed.