Sikafloor® PurCem® HS-21 Gloss
Sikafloor® PurCem® HS-21 Gloss is an industrial flooring system based on polyurethane cement hybrid technology and is part of the Sikafloor® PurCem® Gloss system range.
The system is composed of a scratch primer coat layer and an highly durable, glossy, scratch resistant and seamless polyurethane hybrid wearing course.
It withstands chemical attack, abrasion and impacts. Due its gloss, scratch resistant and impervious surface the floor is hygienic, easy to clean and maintain.
- Good chemical resistance
- Dense and scratch resistant surface
- High mechanical resistance
- Low dirt pick up
- Easy to clean and maintain
- Low VOC and environmental friendly
- Non tainting
- Odourless during application
- Can be applied on substrates with high moisture tolerance
- Seamless
- Very good life cycle cost performance
Usage
- Food and beverage industry
- Processing and chemical industry
- Workshops
- Ramps
- Basements
- Laboratories
- Back of house areas
Advantages
- Good chemical resistance
- Dense and scratch resistant surface
- High mechanical resistance
- Low dirt pick up
- Easy to clean and maintain
- Low VOC and environmental friendly
- Non tainting
- Odourless during application
- Can be applied on substrates with high moisture tolerance
- Seamless
- Very good life cycle cost performance
Packaging
Please refer to the individual Product Data Sheets
Colour
Beige, Dusty Grey, Grass Green, Maize Yellow, Night Blue, Oxide Red, Pebble Grey, Tele Grey 2
Appearance
Smooth, gloss finish
System Details
ENVIRONMENTAL INFORMATION
- Conforms to AgBB (2012) for use in indoor environment. Test report No. 392-2014-00295701E. Eurofins Product Testing.
APPROVALS / STANDARDS
- Sikafloor® PurCem® HS-21 Gloss consist of synthetic screed material according to EN 13813:2002, provided with the CE mark
- Food Industry Approval. Certificate of Compliance to be used safely as a floor coating in food sector. Short term contact of the coating with the foodstuffs is safe as long as any hygienic regulations are not violated. Report No. 38653U14. ISEGA Forschungs- und Untersuchungs-Gesellschaft mbH.
- Taint potential. Report No. S/REP/134217/1 Campden BRI (Chipping Campden) Ltd.
- Cleanibility. Clean Room Suitable Material (Riboflavin test) test report SI 1501-752, Sikafloor® -210 PurCem®. Fraunhofer Institute for Manufacturing and Engineering and Automation IPA.
- Biological resistance. Clean Room Suitable Material Test report SI 1412-740, Sikafloor® -210 PurCem®.
System Structure
Sikafloor® PurCem® HS-21 Gloss
| Layer | Product |
| 1. Scratch coat | Sikafloor®-21/-210/-260 PurCem® |
| 2. Wear coat | Sikafloor®-210 PurCem® |
As an optional build up the primers Sikafloor®-155 W/-150/-151 + quartz sand 0.3–0.8 mm fully blinded broadcast, followed by the Sikafloor®-210 PurCem® (scratch coat) can be used. Please refer to the individual Product Data Sheet.
Composition
Water-based polyurethane cement hybrid
Nominal Thickness
~ 3-6 mm
Volatile organic compound (VOC) content
Very low content of Volatile Organic Compounds. It fulfils the stringent demands for indoor air quality and low VOC emitting products AFFSET, M1 Gold, AgBB, EMICODE and A+.
Shelf Life
Please refer to the individual Product Data Sheets
Storage Conditions
Please refer to the individual Product Data Sheets
Water Absorption
| 0 % | (CP BM2/67/2) |
Shore D Hardness
~80 | (ASTM D 2240) |
Abrasion Resistance
| <1500 mg (CS 22/1000/1000) (7 days / +23°C) | (DIN 53 109) |
Resistance to Impact
Class II (>10 N/mm2) | (ISO 6272) |
Compressive Strength
>50 N/mm2 after 28 days at +23°C / 50% r.h. | (BS EN 13892-2) |
Tensile Strength
| ≥ 15 N/mm2 after 28 days at +23 °C / 50% r.h. | (BS EN 13892-2) |
Tensile Adhesion Strength
> 2.0 N/mm2 | (EN 1542) |
Reaction to Fire
Bfl-s1 | (EN 13501-1) |
Chemical Resistance
Please refer to Sikafloor® PurCem® Gloss chemical resistance guide. Contact Sika technical service for specific information.
Thermal Resistance
| 3 mm | 6 mm |
| -10 °C to +60 °C | -20 °C to +70 °C |
Permeability to Water Vapour
Class II (24 m) | (EN 1504-2) |
Capillary Absorption
< 0.01 kg/(m2h0,5) | (EN 1062-3) |
Skid / Slip Resistance
SRV Dry | SRV Wet |
~65 | ~44 |
Application
Product Temperature
Please refer to the individual Product Data Sheets
Ambient Air Temperature
+10 °C min / +35 °C max
Relative Air Humidity
80 % 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 other disturbance of the surface on the floor finish.
Substrate Temperature
+10 °C min / +35 °C max
Substrate Moisture Content
Sikafloor® PurCem® HS-21 Gloss can be installed on substrates with higher moisture content. The substrate needs to be visibly dry and have an adequate pull-off strength min 1.5 N/mm2. No ponding water. Check for rising moisture.
Applied Product Ready for Use
| Temperature | Foot traffic | Light traffic | Full cure |
| +10 °C | ~ 40 hours | ~ 48 hours | ~ 7 days |
| +20 °C | ~ 22 hours | ~ 26 hours | ~ 3 days |
| +30 °C | ~ 18 hours | ~ 22 hours | ~ 2 days |
Note: Times are approximate and will be affected by changing ambient and substrate conditions
Consumption
| Layer | Product | Consumption |
| 1. Scratch coat | Sikafloor®-21/-210/-260 PurCem® | ~1.0–3.0 kg/m2 |
| 2. Wear coat | Sikafloor®-210 PurCem® | ~1.9 kg/m2/mm |
Consumptions are theoretical and do not include any wastage, additional material need due to porosity, substrate profile etc.
CLEANING
Please refer to the Sikafloor® Cleaning Regime.