Product Data Sheet Safety Data Sheet Show all documents

Sikagard®-405 W

1-part, water-based, acrylic resin coating for walls and ceilings with mid-sheen finish

Sikagard®-405 W is a 1-part, water-based, modified acrylic resin coating. It contains an organic in-film preservative and provides a mid-sheen finish.

  • Good resistance to repeated cleaning and disinfection regimes using mild detergents and cleaning solutions
  • Tough
  • High durability
  • Good opacity (covering power)
  • Good water vapour permeability
  • Ultra-low VOC emissions
  • Low odour
  • Seamless
  • Easy to clean
  • Easy to apply
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Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikagard®-405 W is used as a:
  • Top coat or standalone coating for walls and ceilings
Sikagard®-405 W is used on:
  • Concrete
  • Bricks
  • Gypsum and cement-based substrates
  • Metal
  • Timber
  • Tiles
  • Plastic
Please note:
  • The Product may only be used for interior applications.
  • The Product may only be used by experienced professionals.

Advantages

  • Good resistance to repeated cleaning and disinfection regimes using mild detergents and cleaning solutions
  • Tough
  • High durability
  • Good opacity (covering power)
  • Good water vapour permeability
  • Ultra-low VOC emissions
  • Low odour
  • Seamless
  • Easy to clean
  • Easy to apply

Packaging

One Part Container

15 L (19.8 kg) drums

Colour

Cured colour

White

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • Contributes towards satisfying Materials and Resources (MR) Credit: Building product disclosure and optimization — Environmental Product Declarations under LEED® v4

  • Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4

  • Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU)

APPROVALS / STANDARDS

  • Biological Resistance ISO 22196, SikaGard®-406W, IMSL, Report No. IMSL 2015/02/0

  • Crack-bridging test EN 1062-7, SikaGard®-403W, kiwa, Report No. P 10108-E

  • Fire testing ISO 476, SikaGard®-405W, Exova, Report No. 363979

  • Specular Gloss, Fineness of Grind, Wet Scrub Resistance and Contrast Ratio tests

  • Taint test EN 4120, SikaGard®-405W, Campden BRI, Report No. S/REP/138532/1

  • Triangle test EN 4120, SikaGard®-405 W, Campden BRI, Report No. S/REP/138532/1

  • Vapour permeability test EN 7783, SikaGard®-405W, 4ward, Certificate No. PO45008
Product Information

Chemical Base

Water-based, acrylic copolymer dispersion

Shelf Life

12 months from date of production

Storage Conditions

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight and frost. Always refer to the packaging.

Density

1.31 kg/L

(EN ISO 2811-1)

Solid content by mass

55 %

Solid content by volume

42 %
Technical Information

Tensile Strength

Unreinforced

10 N/mm²

Tensile adhesion strength

> 1.5 N/mm² (failure in concrete primed with Sika® Bonding Primer)

(EN 1542)

Chemical Resistance

Good short-term resistance to mild acids, alkalis, cleaning agents and disinfectants. Please contact Sika Technical Services for specific information.

Disinfection with hydrogen peroxide vapour:

  • Resistant when using STERIS VHP technology.

  • Resistant to PEA vaporisation technology if a system structure with glass fibre reinforcement is used.

  • Resistant when using Oxypharm vaporiser type NOCOSPRAY under the following conditions:

Disinfectant

Concentration

Setting at vaporiser

Contact time

NOCOLYSE Mint (6 %)

1 ml/m3

20 m3 (1.5 min vaporisation)

30 min

NOCOLYSE One Shot (12 %)

3 ml/m3 (2 cycles)

45 m3 (5 min vaporisation)

30 min

NOCOLYSE Food (7.9 %)

1 ml/m3

20 m3 (1.5 min vaporisation)

30 min

NOCOLYSE Food (7.9 %)

5 ml/m3 (2 cycles)

75 m3 (5 min vaporisation)

60 min

 

Permeability to Water Vapour

51.5 g/m2 in 24 hours

(EN ISO 7783)

Application

Application Information

Layer Thickness

120 µm

Product Temperature

Maximum

+35 °C

Minimum

+8 °C

Ambient Air Temperature

Maximum

+35 °C

Minimum

+8 °C

Relative Air Humidity

Maximum

80 % r.h.

Dew Point

Beware of condensation. The substrate and uncured applied product must be at least +3 °C above dew point to reduce the risk of condensation on the surface of the applied product.

Substrate Temperature

Maximum

+35 °C

Minimum

+8 °C

Substrate Moisture Content

Visibly damp-free

Waiting Time / Overcoating

Before applying Sikagard®-405 W on Sikagard®-405 W, allow:

Temperature

Minimum

Maximum

+10 °C

4 hours

7 days

+20 °C

2 hours

7 days

+30 °C

1 hour

7 days

Before applying Sikagard®-405 W on Sikagard®-403 W, allow:

Temperature

Minimum

Maximum

+10 °C

4 hours

7 days

+20 °C

1 hour

7 days

+30 °C

1 hour

7 days

Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.

Applied Product Ready for Use

Temperature

Touch dry

Full cure

+10 °C

8 hours

7 days

+20 °C

4 hours

7 days

+30 °C

3 hours

7 days

Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.
Consumption

Consumption

0.20 kg/m² per layer

0.15 L/m² per layer

Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply the Product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
Application steps

MIXING

  1. IMPORTANT Avoid air entrapment. Use an electrical stirrer at low speed (300–400 rpm) to stir the Product until a uniform liquid has been achieved.

APPLICATION

WARNING

Hazardous respirable droplets may be formed when sprayed.

  1. Do not breathe spray or mist.

IMPORTANT

Reduced service life due to incorrect treatment of cracks

The incorrect assessment and treatment of cracks may lead to a reduced service life and reflective cracking.

  1. For static cracks, ensure the width is suitable for overcoating with Sikagard®-405 W.
  2. For dynamic cracks, ensure the movement is within the movement capacity of Sikagard®-405 W.

IMPORTANT

Risk of crazing due to excess moisture

Crazing may occur if coating undried surfaces.

  1. Ensure the entire surface is fully dry before proceeding.
  2. Allow new concrete substrates to cure or hydrate for a minimum of 10 days, and preferably 28 days.

IMPORTANT

Incompatibility with silicone sealants

Do not apply over silicone sealants.

IMPORTANT

Application on acoustic boards

Acoustic boards may lose some acoustic absorption after coating.

IMPORTANT

Do not thin or brush out like conventional paints

 

IMPORTANT

Gloss finish may vary

The gloss of the finish can vary with temperature, humidity and the absorbency of the substrate.

ROLLER APPLICATION

  1. IMPORTANT For aesthetic reasons, use the same roller type in the same areas. Apply the Product to the correct film thickness per layer with a short-pile roller.

AIRLESS SPRAY APPLICATION

This method leads to a smoother surface compared to roller application.

  1. IMPORTANT Use the same application type in the same areas. Apply the Product to the correct film thickness per layer with airless spraying application equipment, use tip sizes from 0.38–0.53 mm and a fan angle from 40° to 60°.

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use. Hardened material can only be removed mechanically.

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