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ALKA 251

2-Component, Environmentally-Friendly, Water-Based Clear Polyurethane Coating

Water-Based Clear Polyurethane

Alka 251 is a 2-component, water-based, high-performance, high colour stability, and high moisture resistance clear polyurethane resin designed for applications where heavy-duty protection is required. It is used in a range of roller-applied and spray flooring systems and applications.

Alka 200 - kit

Size: 5Kg / 5L Kit

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Usage

Alka 251 is designed for applications where low-VOC & heavy-duty protection is required. It is suitable for outside flooring and decorative systems’ top coat in: 

  • Industrial & Commercial. 
  • Warehouses, storage, and packaging areas,
  • Clean rooms,
  • Automotive Service Areas and Garages,
  • High Traffic Applications,
  • Workshops,
  • Food and beverage production,
  • Assembly plants and industrial processing floors,
  • Schools,
  • Shop Floors,
  • Laboratories.

Advantages

  • Durable – 100% solids.
  • Good working time,
  • Excellent bond strength,
  • Easy application/Can be applied by brush or roller,
  • Water impermeability, 
  • Low VOC
  • Water and scratch-resistant,
  • Excellent light and UV resistant,
  • High Tg and Hardness,
  • Combine with decorative vinyl chips, quartz & metallic powders to create an attractive and durable finish.

Packaging

5 Kg, 4 Kg Resin & 1 Kg hardener

Colour

– Clear & Transparent.

Shelf life: 12 months

Storage conditions

Store away from direct sunlight and away from naked flames, sparks and heating.

Flash point >25 C

Density: 1.05 Kg/L

Layer thickness
Recommended coating thickness is approximately 160-200 microns per coat

Pot Life (at 25 C)
approximately 25 minutes

Curing time (at 25 C)
Tack free time: 12-14 hours
Re-coatable: 12-24 hours
Light traffic: 3 days
Full cure: 7 days.

Consumption
Approximately 0,150 kg/m² applied as a roller coating.

Alka primer: 5–6 sqm/litre
First coat: 5–6 sqm/litre over unprimed
6–8 sqm/litre over primed or coated

Second coat: 6–8 sqm/litre Over trowelled on toppings 2–4 sqm/litre

APPLICATION INSTRUCTIONS

Alka 251 can be applied by brush or roller; the selection of roller is dependent on the type of finish required.

CLEANING OF EQUIPMENT
Xylene can be used for cleaning tools and equipment before the mixed compound begins to harden. Once cured, it can only be removed mechanically.

pdf  ALKA 251 | Product Data Sheet | PDF-165 KB (English)
pdf  ALKA 251 | Product Data Sheet | PDF-165 KB (English)

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