DEMCO PUR 400 TOP COAT UVM/S

Description

A two-component, acrylic polyurethane-based, elastic matte topcoat. It is used as a topcoat where resistance to atmospheric corrosion and UV is required and elasticity is desired.

Advantages

• Elastic.
• Moves together with the surface it is applied to.
• Does not crack or break.
• Thanks to its UV resistance, it does not dull or chalk.
• Thanks to its low viscosity, it can be easily applied to floors and vertical surfaces by brush, roller or spray gun.

Suitable Substrates

• Concrete surfaces primed with Solvent-Free Epoxy Impregnating Primer DEMCO EPOX 100 PR.
• If required, solvent-free elastic PU, polyurea or EP coatings.

Technical Properties

Surface Preparation and Application

Surface preparation:

• Surfaces to be coated must be free of oil, rust, dust and similar contaminants.
• The surface to be coated must be free of moisture, and no loose layer whatsoever may remain.
• Glossy surfaces should be roughened by shot blasting, grinding or milling.
• The prepared concrete surface must be primed with the Solvent-Free Epoxy Impregnating Primer DEMCO EPOX 100 PR, following the application instructions, so that it is fully impregnated.
• Any cracks and holes in the surface must be repaired using epoxy putty.

Mixing and thinning:

• After component A has been mixed in its own container, all of component B must be poured into component A and the two components mixed for at least 3 minutes until a homogeneous mixture is obtained.
• Mixing at low speed is recommended to prevent air bubbles from forming in the mixture.
• If necessary, it is thinned with Polyurethane Thinner PUR 1000 THINNER at a ratio of max. 5 – 10%.

Application:

• After the primer coat has been applied, make sure the primer surface has become touch-dry; depending on the ambient temperature, DEMCO PUR 400 TOP COAT UVM/S should be applied after approx. 24 hours.
• The Acrylic Polyurethane Elastic Matte Topcoat DEMCO PUR 400 TOP COAT UVM/S is applied by brush, roller or preferably spray gun over the aforementioned primer or, where deemed necessary, over solvent-free elastic PU, polyurea or EP coatings.

Application Conditions

• Working area temperature must be 15°C – 30°C.
• The ideal substrate temperature is 15°C – 30°C. The temperature must never be below 10°C.
• For indoor and outdoor applications, substrate temperature, ambient temperature and ambient humidity must be taken into account.
• The relative moisture of the substrate must be below 4% and the ambient humidity below 80%.
• Mix only as much product as is needed for the application, and do not interrupt the application until the entire mix has been used.
• For 24 hours after application, the surface must not be touched or come into contact with water.
• DEMCO PUR 400 TOP COAT UVM/S applied at 20 – 25°C reaches full cure at room temperature in an average of 7 days.

Coverage

A dry film thickness of 50 – 55 µ is obtained in a single coat at a coverage of 0,150 – 0,200 kg/m².

Storage and Shelf Life

Store in unopened original packaging at 15 – 25°C in dry, closed warehouses away from direct sunlight. Under these conditions, shelf life is 6 months.

Packaging

Total Net: 20 kg (A: 16,00 kg / B: 4,00 kg)

Approvals / Standards

Tested to EN 1504-2 within the scope of CE certification.

Safety Precautions

• Avoid contact of the mixture or its components with skin and eyes; in case of contact, rinse with plenty of water and seek medical advice.
• Wear protective gloves, clothing and goggles.
• Keep out of reach of children.