Liquid Polyurethane Waterproofing - PUR 625

Description

PUR 625is a ready to use, single component, polyurethane-based waterproofing material in liquid form. It has high UV

stability and is suitable for pedestrian traffic.

Usage Areas

It is safely applicable on concrete, stone, fibre-cement sheets and metals, in rain gutters, canals and water ducts, terrace

roofs, protection of polyurethane foam applications, water tanks, damp bulks, and swimming pools against water and

moisture.

Technical Data

• Color : White

• Base : Modified polyurethane

• Thermal resistance : -35°C to +110°C

• Viscosity : 5800 mpas(white)

• Waterproofing : Waterproof at the end of a 3 day period under 5 atm pressure

• Water vapor permeability : 25,8 g/m²/day

• Adherence to concrete : 3,2 kp/cm²

• Solid content : 87%

• Application temperature : +5°C to 45°C

• Density : 1.4 gr/cm²

• Pull-out adherance : 9.19 kgf/cm²

• Slipping adherance : 75.06 kgf/cm²

• Hardness (Shore A scale) : 65

• Elongation at break (at 20°C) : % 450

Advantages

Provides a seamless, waterproof and protective coat. Provides perfect adherence for aged coatings as well.

Highly resistant to aging, diluted acids, bases, salts, chemical substances, mildew, and weather conditions. Sustains its

original properties for years. As an elastic, easy to use single component material it does not flow on vertical surfaces.

It covers capillary cracks.Resistant to sunlight since it is produced from UV resistant resins. Stable to depolymerization.

It can be applied simply. It can also be applied, as a protective coat, onto polyurethane foam.

Ever elastic; does not result in cracks on the surfaces it is applied. Has a high solid substance ratio.

Resistant to plant roots. Resistant to pedestrian traffic after it has been cured.

Surface Preparation

The surface to be treated must be dry, clean and free from all types of grease.

Maximum humidity must be 5%. Otherwise the product results in foaming and swelling on wet parts.

It takes at least 15 days for fresh concrete surfaces to dry up as required.

Application

The material must be mixed throughly and applied by a brush, roller or spray at least two layers.

It can be thinned by benzine (5% maximum) if necessary.

It is recommended to wait for approximately 12 hours before the application of the next coat when it is applied in more

than one coat. During application you must wear protective gloves.

Final curing takes 5 days.

Cleaning the equipment

The equipment can be cleaned by industrial solvents immediately after application.

Consumption

At least 1,50 kg/m² for two layers

Packaging

Net 24 kg Metal bucket

Storage – Shelf life

PUR 625has a shelf life of min. 8 months starting from production date when stored unopened, in dry and cool conditions

and at 30ºC. The whole content in the package must be consumed; the remaining product cannot be consumed later