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• Recommended Substrate Conditions & Temperatures
• System Specification
• Instructions for Use
• Safety Precautions

Recommended Substrate Conditions & Temperatures

Primed concrete:

• Suitable primer must be dry and free from any contamination

Coated concrete:

• Existing sound coating systems; sufficiently roughened, dry and cleaned
• To ensure compatibility, rub the existing coating with a cloth with Xylene or MEK for 10 seconds, and remove existing coatings if dissolving occurs
• Rough surface; eventually abraded by power tool or diamond abrading tool

Substrate temperature and application conditions:

• Ambient temperature during application and curing should be between 10°C and 25°C
• Relative humidity during application and curing should not exceed 85%
• Substrate temperature during application and curing should be between 10°C and 30°C
• Substrate temperature during application should be at least 5°C above dew point

System Specification

Standard system:

• NU-KLAD SL: 1 x 2000 µm (80.0 mils) on top of primed concrete

Fully sprinkled anti-skid system:

• NU-KLAD SL: 1 x 2000 µm (80.0 mils) on top of primed concrete
• Anti-skid fully sprinkled
• Note: In case of fully sprinkled an extra layer of SIGMADUR 520 or SIGMADUR 550 can be applied for a better aesthetical appearance

Instructions for Use

Mixing ratio by weight: base to hardener to filler 14:3.1:7.9:

• Material temperature should be between 10°C  and 20°C
• Mix base and hardener with a variable-speed mechanical mixer thoroughly for 1 minute
• Add the filler while stirring and stir thoroughly for 2 minutes
• Pour the mixture into another can and mix for 2 minutes, until homogeneous
• The speed of the mixer should not exceed 800 rpm to avoid air entrapment

Induction time:

• None

Pot life:

• 35 minutes at 10°C
• 25 minutes at 20°C
• 15 minutes at 25°C

Anti-skid system:

• Apply NU-KLAD SL: 1 x 2000 μm on top of primed concrete
• Fully sprinkle anti-skid in the wet layer
• Remove excess of anti-skid after drying
• An extra layer of 50 μm SIGMADUR 520 or SIGMADUR 550 can be applied for a better aesthetical appearance

Trowel/Swedish knife:

• Pour an appropriate amount of mixture on the primed concrete and spread it evenly by trowel or Swedish knife
• Use a spiked roller to avoid air entrapment

Recommended thinner:

• No thinner should be added

Cleaning solvent:

• Thinner 90-53

Overcoating interval for DFT up to 2000 µm (80.0 mils):

• Nu-Klad SL:
  
  • 24 hours - 7 days @ 20°C
• Polyurethane topcoat:
  
  • 36 hours - 3 days @ 20°C
• Surface should be dry and free from any contamination
• For intervals exceeding the maximum overcoating interval, the surface has to be roughened sufficiently before overcoating

Curing time for DFT up to 2000 µm (80.0 mils):

• Dry to walk on: 24 hours @ 20°C
• Light impact/abrasion: 24 hours @ 20°C
• Full cure: 7 days @ 20°C

Safety Precautions

• Since improper use and handling can be hazardous to health and cause of fire or explosion, safety precautions included with Product Data/Application Instruction and Material Safety Data Sheets must be observed during all storage, handling, use and drying periods (see 'Data Sheets' section above)