Product Data Sheet Show all documents

Sikagard®-65 WN MY

Water dispersed epoxy coating for curing and protection of concrete

Sikagard®-65 WN MY is a solvent free, water dispersed, two part epoxy resin for curing and protection of precast concrete segments immediately after de-moulding. It is designed and formulated to meet high durability demands in aggressive environments.

  • Easy and fast to apply with a roller
  • Water dispersed
  • Solvent free (odourless)
  • Good hiding properties / cosmetic finish
  • Fast curing at high temperature
  • Pore sealer
  • Increased chemical resistance
  • Increased abrasion resistance
  • Tools can be cleaned with water
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Product Data Sheet Show all documents

Usage

Sikagard®-65 WN MY is used to cure and protect precast concrete segments, as an efficient alternative to conventional curing and protection procedures. Segments can be produced without any micro-cracks and due to the penetration of the epoxy resin into the concrete surface, a barrier against the ingress of aggressive ions can be obtained.  

Advantages

  • Easy and fast to apply with a roller
  • Water dispersed
  • Solvent free (odourless)
  • Good hiding properties / cosmetic finish
  • Fast curing at high temperature
  • Pore sealer
  • Increased chemical resistance
  • Increased abrasion resistance
  • Tools can be cleaned with water

Packaging

Part A

22.5 kg pail

Part B

7.5 kg pail

Part A+B

30 kg set

Colour

  • White
  • Light grey
  • Grey
  • Other colour available upon request

Product Details

Product Information

Composition

Water dispersed epoxy resin

Shelf Life

12 months from the date of production

Storage Conditions

Store in original unopened packaging in dry conditions at temperatures between +5 °C and +30 °C. Keep away from direct sunlight.

Density

Part A + B

~1.4 kg/l (at +20 °C)

Solid content by volume

~52 %

(ASTM D2697-03 (2014))
Technical Information

Tensile Adhesion Strength

To concrete

> 1.5 N/mm² (Concrete failure)

Permeability to Water Vapour

0 mm at 3 bars water pressure for 72 hours

(DIN 1048)

Diffusion Resistance to Water Vapour

~3768 µH2O

(BS EN 1062–2 / BS EN ISO 7783:2011)

Application

Application Information

Mixing Ratio

Part A : B = 3 : 1 by weight

Substrate Temperature

+70 °C max.

Pot Life

~35 minutes (Caution! End of pot life is not visually noticeable)

Curing Time

At 85 % r.h.,

Temperature

Minimum curing time before transportation of segments

Fully cured

+20 °C

~12 hours

~10 days

+30 °C

~4 hours

~7 days

Waiting Time / Overcoating

Minimum

Maximum

~4 hours (at +30 °C)

3 days

The overcoating time is dependent on the ambient temperature, relative humidity and wind conditions.
Consumption

Consumption

Primer

1 coat x Sikagard®-65 WN MY diluted with 8–10 % clean water

~100 g/m²

Subsequent coats

Sikagard®-65 WN MY (not diluted)

100–250 g/m² per coat

Sikagard®-65 WN MY should be applied in minimum 2 coats (not including primer). The number of coats is dependent on the Dry Film Thickness (DFT) requirement. Please consult our Technical Sales Representative for more information.
Application steps

SUBSTRATE QUALITY

Surface shall be dry and must be clean of loose cement particles.

MIXING

Stir Part A with an electric mixer at low speed (600 rpm). Then add Part B and continue mixing until a homogeneous colour is achieved (approx. 2–3 minutes).

APPLICATION

Sikagard®-65 WN MY may be applied either with a brush or a roller. It is not recommended to spray Sikagard®-65 WN MY.

CLEANING OF TOOLS

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

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