Product Data Sheet Show all documents

Sikagard®-62

2-Part epoxy-based protective coating

Sikagard®-62 is a two part, rigid, 100 % solids, coloured high build epoxy resin based protective coating.

  • Solvent free
  • Good mechanical and chemical resistance
  • High build
  • Impervious to liquids
  • Easy to mix and to apply
  • Can be used for contact with potable water*
----------------------------------------------------------------- * check local requirements and regulations  
Product Data Sheet Show all documents

Usage

  • Chemical resistant protective layer on concrete, stone, cementitious mortars and renderings, epoxy cement, epoxy resin based products and steel
  • Lining in storage tanks and silos, including potable water reservoirs*
  • Anti-corrosion coating on steel in food processing plants, sewage works, farms, agricultural enterprises, chemical and pharmaceutical facilities and beverage industry

Advantages

  • Solvent free
  • Good mechanical and chemical resistance
  • High build
  • Impervious to liquids
  • Easy to mix and to apply
  • Can be used for contact with potable water*
----------------------------------------------------------------- * check local requirements and regulations  

Packaging

Sikagard®-62 is available in 10 kg kits consisting of

Part A

7.5 kg tin can

Part B

2.5 kg tin can

Part A+B10.0 kg set

Colour

RAL 7032 (pebble grey), other on request

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

  • Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings

CERTIFICATES AND TEST REPORTS

  • CE-Certification as coating for concrete protection according the requirements of EN 1504-2

  • Chemical Resistance Chart

  • DWI Appproval according to Water Quality Regulation 31
Product Information

Composition

2 Part epoxy-based resin

Shelf life

Part A: 12 months
Part B: 12 months
from the date of production, if stored according to the specified storage conditions.

Storage conditions

The packaging must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

Density

Part A

~1.30 kg/l

Part B

~1.02 kg/l

Mixed product

~1.28 kg/l

Density values determined at +25 °C

Solid content

~ 100 %

Solid content by mass

~ 100 %
Technical Information

Shore D Hardness

~80

Mechanical resistance

Impact resistance

~6 Nm

Abrasion resistance

Abrasion resistance

607 mg

Wear resistance BCA

Class AR1

Tensile adhesion strength

> 1.5 MPa to concrete

(EN 1542)

Chemical resistance

Please refer to Chemical Resistance Chart (available at request)

Temperature resistance

Exposure to dry heat

Temperature

Permanent

+50 °C

max. 7 days

+80 °C

max. 12 hours

+100 °C

Permeability to water vapour

Sd = 44 m (Class II)

(EN ISO 7783)

Permeability to carbon dioxide

Sd = 711 m

(EN 1062-6)

Service temperature

+10 °C to +50 °C

Water penetration after capillary absorption

< 0.01 kg/(m2·h0.5)

(EN 1062-3)

Application

Application Information

Mixing ratio

Part A : Part B = 3 : 1 by weight

Layer thickness

~0.14 mm per layer

Ambient air temperature

+8 °C min. / +40 °C max.

Relative air humidity

< 80 %

Substrate temperature

+8 °C min. / +40 °C max.

Minimum 3 °C above dew point, beware of condensation!

Pot Life

Temperature

Working Time

+10 °C

~30 min

+20 °C

~20 min

+30 °C

~10 min

Waiting time to overcoating

Temperature

Min.

Max.

Full cure

+10 °C

~ 30 hours

~ 3 days

~ 14 days

+20 °C

~ 10 hours

~ 2 days

~ 10 days

+30 °C

~ 6 hours

~ 1 day

~ 5 days
Consumption

Consumption

~0.20 kg/m² per layer*

*Min. recommendations is three layers. Total number of layers shall depends on required level of protection.
Application steps

SUBSTRATE PREPARATION

Concrete Substrate

The substrate must be sound, clean, dry, free from contaminants such as dirt, grease, oil, old coatings, release agents, laitance and other adhesion preventing or influencing substances. Weak areas in the substrate must be removed and surface defects such as blowholes and voids must be fully exposed. All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum. Open voids and blowholes need to be closed with a suitable Sika® pore filling mortar. The roughness of the substrate needs to be levelled with a suitable Sika® fairing coat. Concrete substrate must be prepared mechanically to achieve an open textured surface.

 

Steel Surface

Steel surface must be prepared mechanically using abrasive blast cleaning. The level SSPC-SP 10 “near white metal blast cleaned” or level Sa 2 ½ according to ISO EN 12944-4 has to be achieved. Welds and joints have to be prepared according to EN 14879, part 1. After blast cleaning remove all dust dirt and blasting material. In order to maintain the surface conditions after blast cleaning air-conditioning is recommended.

MIXING

Prior to mixing stir Part A mechanically. Then add Part B to Part A and mix continuously for 3 minutes until a uniform mix has been achieved. Use a low speed electrical stirrer (300–400 rpm) to avoid air entrapment. To ensure proper mixing pour material into a clean container and stir again. Do not mix by hand!

APPLICATION

Apply by brush, roller or airless spray onto the prepared and primed surface with a consumption of 200 g/m².

After drying of the first layer, apply the second layer with a minimum consumption of 200 g/m². Three layers are mandatory.

Optionally a fourth layer or more can be applied for extra protection in case of very harsh conditions to be expected.

For details on spray application, please consult Sika Technical Department for further information.

CLEANING OF EQUIPMENT

Clean all tools with Thinner C immediately after use. Hardened and/or cured material can only be removed mechanically.

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