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SikaCoat®-555

Micro-fiber reinforced acrylic waterproofing coating

SikaCoat®-555 is a water-based, one-component liquid waterproofing coating with self-priming and microfiber reinforcement. It creates a flexible, durable waterproof membrane suitable for various applications.

  • Microfiber reinforced acrylic for flexibility and durability.
  • Resistant to micro cracks with excellent penetration.
  • High UV resistance and solar reflectivity for energy efficiency.
  • Eco-friendly, water-based, and non-toxic.
  • Bridges cracks and bonds well to various substrates.
  • Elastic waterproofing with superior coverage.
  • Easy application by roller, brush, or spray.
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Usage

Waterproofing applications:
  • Flat and sloped exposed roofs
  • New and refurbishment projects
  • External walls
  • Roofs with complex details (e.g., penetrations, drains, skylights)
Compatible Substrates:
  • Concrete, mortar, and cement-based materials
  • Brick and clay roof tiles
  • Metal surfaces (steel, zinc, aluminium)
 

Advantages

  • Microfiber reinforced acrylic for flexibility and durability.
  • Resistant to micro cracks with excellent penetration.
  • High UV resistance and solar reflectivity for energy efficiency.
  • Eco-friendly, water-based, and non-toxic.
  • Bridges cracks and bonds well to various substrates.
  • Elastic waterproofing with superior coverage.
  • Easy application by roller, brush, or spray.

Packaging

  • 5 kg pail
  • 20 kg pail

Colour

  • White
  • Grey
  • Also available in other colours upon request (subject to minimum order quantity)

Product Details

Product Information

Composition

Water based emulsion with internal microfiber reinforcement

Shelf Life

12 months from date of production

Storage Conditions

Store properly in original, unopened, undamaged sealed packaging in dry condition at temperature between +5 °C and +30 °C. Protect from direct sunlight.

Density

~1.30 kg/l

(ASTM D1475)

Viscosity

~70,000 cps

(ASTM D2196-99)

Solid content by weight

~65 %

(ASTM D1644)
Technical Information

Tensile Strength

~2.5 N/mm²

(ASTM D412)

Solar Reflectance

~81.50 %

(ASTM E903-20)

Thermal Emittance

~0.92

(ASTM C1371-15)

Solar Reflectance Index

~102.3 at 6–10 m/s

(ASTM E1980-11)

Elongation at break

~200 %

(ASTM D412)

Application

Application Information

Ambient Air Temperature

+5 °C min. / +35 °C max.

Substrate Temperature

+5 °C min. / +35 °C max.

Substrate Moisture Content

≤ 4 % pbw

Test method: Sika®-Tramex meter, CM-measurement or oven-dry-method.

No rising moisture according to ASTM D4263 (Polyethylene-sheet)

Waiting Time / Overcoating

Minimum

1–2 hours at +25 °C

Maximum

~24 hours at +25 °C

Applied Product Ready for Use

~72 hours at 25 °C
Consumption

Consumption

For wall

Primer

SikaCoat®-555 diluted with 15–20 % clean water

0.3 kg/m² (undiluted)

First coat

SikaCoat®-555

0.3 kg/m²

Second coat

SikaCoat®-555

0.3 kg/m²

For roof

Primer

SikaCoat®-555 diluted with 15–20 % clean water

0.3 kg/m² (undiluted)

First coat

SikaCoat®-555

0.65 kg/m²

Second coat

SikaCoat®-555

0.65 kg/m²

The consumption above are approximates and does not include wastages.

For porous substrates, the consumption may be higher.
Application steps

MIXING

Mix SikaCoat®-555 manually or use a low speed mixer until it is completely homogeneous prior to ap-plication.

APPLICATION

Dilute SikaCoat®-555 with 15–20 % of clean water. Stir gently until the mix is homogenous and uniform colour is achieved. Using a short hair wool roller, brush or by airless spray, apply a layer of the diluted SikaCoat®-555 onto the substrate, observing that it penetrates well in all the cracks.

After the primer has dried (> 3 hours at +30 °C), apply successive layers of SikaCoat®-555 to the desired film thickness. Ensure the previous layer is completely dry before applying the next layer.

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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