Sikafloor®-29 PurCem® (AE)
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.
Suitable for use in hot and tropical climatic conditions.
- Good wear resistance
- High mechanical and impact resistance
- High softening point
- Good chemical resistance
- Non tainting /odourless
- Fast curing
- Can be applied to substrates with high moisture content (7 days old or mature damp concrete)
Usage
Sikafloor®-29 PurCem® (AE) 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
- 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 | 1.40 kg plastic drum |
| Part C | 17.3 kg paper bags |
| Part D | 1.80 kg plastic pouch |
| Part A + B + C + D | 22.0 kg ready to mix units |
Colour
| Part A | White liquid |
| Part B | Brown liquid |
| Part C | White powder |
| Part D | Pigment |
Product Details
SUSTAINABILITY
USGBC LEED® Rating. Confirms Section FQ (Indoor Environment Quality), Credit 4.2 Low Emitting Materials Paints and Coatings (VOC content ≤ 50 g/l).
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 C | 6 months from date of production. Must be protected from humidity |
| Part D | 12 months from date of production. Protect from freezing |
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. Protect from direct sunlight, heat and moisture.
Density
Mixed A + B + C + D: ~1.97 kg/l (+20 °C)
Shore D Hardness
| ~80 - 85 | (ASTM D 2240) |
Compressive Strength
| ≥ 25 N/mm2 (28 d / +23 °C / 50 % r.h.) | (BS EN 13892-2) |
Tensile Adhesion Strength
| Concrete failure | (EN 1542) |
Application
Mixing Ratio
Part A : B : C : D = 1 : 0.93 : 11.5 : 1.2 (packaging size = 1.5 : 1.4 : 17.3 : 1.8) 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. / +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
| Temperature | 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®-29 PurCem® (AE) allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 20 h | 72 h |
| +20 °C | 10 h | 48 h |
| +30 °C | 5 h | 24 h |
| +35 °C | 5 h | 24 |
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. For the colourpack version, premix Part A neutral with a low speed electric stirrer and add Part D to it. Mix until a uniform colour is achieved. Add Part B and mix for 30 seconds.
Use a double paddle (axis) mixer and gradually add Part C (aggregate) to the mixed resin. 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 + D) to ensure complete mixing.
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 double paddle mixer.
APPLICATION
Apply the mixed Sikafloor®-29 PurCem® (AE) 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® (AE) while the primer is still tacky. If the primer becomes tack free, reapply the primer.
CLEANING OF EQUIPMENT
Clean all tools and application equipment with Thinner C immediately after use. Hardened/cured material can only be mechanically removed.