Water-Based Coving and Detailing Mortar with Chemical Resistance
Sikafloor-29 PurCem is a multi-component, water-based polyurethane hybrid mortar offering high impact and mechanical resistance, as well as good resistance to chemicals and wear. It's ideal for coving, detailing, and vertical rendering with Sikafloor PurCem floor systems.
Uses:
Used as a coving mortar, for detailing, and for vertical rendering in conjunction with Sikafloor PurCem floor systems.
Characteristics / Advantages:
- Good wear resistance
- High mechanical and impact resistance
- High softening point
- Good chemical resistance
- Non-tainting / odourless
- Fast curing
- VOC free
- Can be applied to substrates with high moisture content
Approvals / Certificates:
- Synthetic resin screed material according to EN 13813:2002
- Coating for surface protection of concrete according to EN 1504-2:2004
- EN1186, EN 13130, and prCEN/TS 14234 standards for contact with food stuffs
- British Standards Specifications (BSS) acceptance for use in the UK
- Fire classification report according to EN 13501-1
- Liquid water transmission rate test report
- Impact resistance values tested
Product Information:
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Composition: Water-based polyurethane cement hybrid
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Packaging: 22.0 kg ready to mix unit (various components)
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Packaging:
- Part A: 1.30 kg plastic bottle
- Part B: 1.50 kg plastic bottle
- Pigment: 0.4 kg plastic tub
- Part C: 1.60 kg plastic bag
- Part D: 17.3 kg plastic bag
- Part A+B+C+D: 22.0 kg ready to mix unit
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Colour:
- Part A: opaque liquid
- Part B: brown liquid
- Pigment: colour (dependent on choice)
- Part C: natural grey powder
- Part D: natural sand colour
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Density (mixed approx.): ~ 1.97 kg/l (at +20 °C)
Technical Information (Typical values at +23 °C / 50 % r.h.):
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Shore D Hardness: ~80–85 (ASTM D 2240)
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Compressive strength (28 days): ~44 N/mm² (BS EN 13892-2)
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Tensile strength in flexure (28 days): ~8 N/mm² (BS EN 13892-2)
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Tensile adhesion strength: concrete failure (EN 1542)
Application Information:
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Mixing ratio: Part A : P : B : C :D = 1 : 0.3 : 1.1 : 1.2 : 13.3 (by weight, full units only)
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Consumption: ~ 2.0 kg/m²/mm
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Layer thickness: 3–9 mm
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Pot Life (at +20 °C): ~ 22–25 minutes
Application Instructions:
Substrate Quality / Pre-treatment: Surface must be clean, dry, and free of contaminants. Pull-off strength should be ≥ 1.5 N/mm². Priming is required (Sikafloor 160/161 or Sikadur 31/33 depending on application).
Mixing: Premix Part A, add pigment, mix. Add Part B, mix. Gradually add Part C & D (aggregate) using a double paddle mixer for at least 2 minutes. Mix full units only.
Application: Apply the mixed mortar onto the primed substrate while the primer is tacky. Compact to the desired thickness and finish with a coving trowel or steel float. Top coats (Sikafloor 31 PurCem) can be applied for a smoother finish.
Cleaning of Equipment: Clean tools with Thinner C immediately after use. Hardened material can only be removed mechanically.
Get unbeatable trade prices and fast nationwide shipping on all Sika products. Pick up your order from our store, Sika Wetherill Park in Sydney, or any Sika warehouse nationwide.
Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.
Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.
