Sikagard®-62

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

• Coating for concrete protection according the requirements of EN 1505-2/2004.
• WRAS, test report No. M104991, 2011, Contact with water for wholesome purposes according BS 6920-1:2000
• Certified Green Label by Singapore Green Building Council

Epoxy resin

Part A: 12 months
Part B: 12 months
From date of production if stored properly.

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

Mixed resin ~1.37 kg/L

Density values determined at +23 °C

~100 %

Please contact Sika technical service for specific information.

Part A : Part B = 3 : 1 by weight

~0.2 mm per layer

(min. recommendation is two layers or depend thickness required)

+8 °C min. / +40 °C max.

< 80 %

+8 °C min. / +40 °C max.
≥ 3 °C above dew point, beware of condensation

~0.30 kg/m² per layer

(min. recommendation is two layers or depend consumption required)

The concrete substrate must be sound and of sufficient compressive strength (~25 N/mm²) with a minimum pull off strength of 1.0 N/mm².

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.
On high absorbent, non-sound, contaminated, not cement based substrates precautions have to be taken and a suitable primer has to be used.

Concrete Substrate
Concrete substrate must be prepared mechanically to achieve an open textured surface.
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® rendering and levelling mortar.
 

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.

Prior to mixing stir part A mechanically. When all of part B has been added to part A mix continuously for 3 minutes until an uniform mixed 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.

Apply by brush, roller or airless spray.

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