Sikagard® WallCoat AL-11 Hygienic
Sikagard® WallCoat AL-11 Hygienic is a crack bridging wallcoating system, based on waterborne modified acrylic resin containing an in film preservative to protect the coating from attack and degradation by bacteria, funghi, mould yeast and algae.
- Seamless, easy to clean finish
- Very low emission of VOC
- Good resistance to repeated cleaning regimes using mild detergents and cleaning solutions
- no degradation of the film caused by bacteria, funghi, mould, yeast and algae
- Tough and highly durable
- Good water vapour permeability
- medium crack brdiging properties due to glass fibre reinforcement
- Solvent free
- Good opacity
- Odourless
- Easy to apply
System Structure
Usage
- Application on concrete, bricks, cement and gypsum based substrates, metal surfaces, timber, tiles and plastic
- Suitable for production facilities in the pharmaceutical, medical engineering, food and beverage industry, hospitals, prisons, healthcare and leisure facilities
Advantages
- Seamless, easy to clean finish
- Very low emission of VOC
- Good resistance to repeated cleaning regimes using mild detergents and cleaning solutions
- no degradation of the film caused by bacteria, funghi, mould, yeast and algae
- Tough and highly durable
- Good water vapour permeability
- medium crack brdiging properties due to glass fibre reinforcement
- Solvent free
- Good opacity
- Odourless
- Easy to apply
Colour
standard colour white
others on request
Appearance
| Top Coat | Appearance |
| Sikagard®-405 W and | mid-sheen |
| Sikagard®-406 W | matt |
System Details
ENVIRONMENTAL INFORMATION
Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings
APPROVALS / STANDARDS
- Eurofins, test report, VOC emission acc. French regulations Decret DEVL 11019093D, March 23, 2011 and Decret DEVL 11034675A, see Product Data Sheets of products used
- PRA, test report, gloss, fineness, grind wet scrub resistance and contrast ratio acc. EN 13300, see Product Data Sheet of product used as top coat
- Test Institute Hoch, test report No. KB-Hoch-160714, classification reaction to fire acc. according EN 13501-1, June 2016
- IMSL, determination of antibacterial activity acc. ISO 22196, see Product Data Sheet of product used as top coat
- KIWA, test report No.: P 10108, determination of crack bridging properties according EN 1062-7, April 2016
- IMSL, test report, determination of the resistance of surface coatings to mould growth according BS 3900 Part G6, see Product Data Sheet of product used as top coat
- CampdenBRI, sensory evaluation of choclate to test the taint potential, using the triangle test method according TES-S—002 odour transfer method, see Product Data Sheet of product used as top coat
System Structure
Sikagard® WallCoat AL-11 Hygienic
| Layer | Product |
| 1. Primer/ Base coat | Sikagard®-403 W + 5 % water |
| 2. Intermediate layer | Sikagard®-403 W + embedment of Sika® Reemat lite |
| 3. Top coat | Sikagard®-405 W or Sikagard®-406 W or Sikagard®-207 W |
Composition
Acrylic Copolymer Dispersion, waterborne
Nominal thickness
250–300 µm
Crack Bridging Ability
| Class A2 (up to 0.45 mm) | (EN 1062-7) |
Reaction to Fire
| C-s1, d0 | (EN 13501-1) |
Chemical Resistance
Good resistance to mild acids, alkalis, cleaning agents and disinfectants. Please contact local Sika technical service for specific information.
Disinfection with Hydrogen Peroxide Vapor:
- Resistant when using STERIS VHP technology
- Resistant to PEA vaporisation technology according test report PEA, max. 5 hours
- Resistant when using Oxypharm vaporiser NOCOSPRAY® with the following set-up:
| Disinfectant | Concentration | Setting at vaporiser | Contact time |
| NOCOLYSE® Mint (6 %) | 1 ml/m³ | 20m³ (1.5 min vaporisation) | 30 min |
| NOCOLYSE® ONE Shot (12 %) | 3 ml/m³ (2 cycles) | 45m³ (5 minutes vaporisation) | 30 min |
| NOCOLYSE® Food (7.9 %) | 1 ml/m³ | 20m³ (1.5 minutes vaporisation | 30 min |
| NOCOLYSE® Food (7.9 %) | 5 ml/m³ | 75m³ (5 minutes vaporisation) | 60 min |
Application
Product Temperature
+8 °C min. / +30 °C max.
Ambient Air Temperature
+8 °C min/ +40 °C max.
Relative Air Humidity
≤ 80 %
Dew Point
Beware of condensation
The substrate and the uncured material must be at least 3 °C above dew point due to risk of condensation
Substrate Temperature
+8 °C min. / +35 °C max.
Substrate Moisture Content
Substrate shall be visible dry, no rinsing water
Waiting Time / Overcoating
Between application of the different layers allow:
| Temperature | Minimum | Maximum |
| +10 °C | 4 h | 7 d |
| +20 °C | 2 h | 7 d |
| +30 °C | 1 h | 7 d |
Applied Product Ready for Use
Minimum 72 hours at +20 °C
Lower temperatures may lead to longer curing times
Consumption
| Layer | Product | Consumption |
| Primer | Sikagard®-403 W | ~ 0.20 kg/m² |
| Intermediate | Sikagard®-403 W + Sika Reemat Lite | ~ 0.30 kg/m² |
| Top coat | Sikagard®-405 W or Sikagard®-406 W or Sikagard®-207 W | ~ 0.15 kg/m² per layer |
CLEANING
The top coats are tested in accordance to EN 11998:2006 related to wet scrub resistance.
According EN 13300 the product is classified in class 1, which is the highest wet scrub resistance class. Therefore the surface can be cleaned with a wet sponge, using mild detergents and rewashed with clean water.