Technical Information

General Description

Vadek Coatings are a spray applied multicolour coating for interior surfaces. The coating is tough and abrasion resistant, and is ideal for area of high wear, such as walls in office areas, commerical building lobbies, hotels, hospitals and other public areas. The seamless, satin finish is fully scrubbable, and mechanical damage that cannot be cleaned away can easily be touched up to restore the original effect. Almost any surface that is suitable for normal paint coating can be coated with Vadek Coatings.

Surface Preparation

Surfaces are prepared as for application of any other paint coating. Generally, surfaces must be clean, dust-free and dry, and must present a flat, gloss free finish. New surfaces should have an appropriate primer/sealer applied and allowed to dry for the specified period.

To the prepared surface, a specified exterior quality flat acrylic basecoat, should be applied by roller or spray. After the appropriate drying time, the surface is ready for the application of the multicolour.

Multicolour Application

Prior to spraying, the surrounding surfaces, to a width of 500mm, should be masked against overspray. As the product is applied by low pressure spray, there is no general paint atomisation as is normal with paint spraying.

Application should only be carried out by painters having a thorough understanding of multicolour paint spraying. Equipment normally include a compressor, pressure pot, and spraygun fitted with an internal mix nozzle having a medium to large size oriface. An in-line air pressure gauge is alos strongly recommeneded. Certain high volume, low pressure (H.V.L.P.) equipment is also suitable.

Multicolour should be gently but thoroughly stirred with a clean flat paddle prior to spraying. Avoid scraping the sides of the container. Thinning is no normally needed, but up to 5% by volume of clean water may be stirred in if necessary. Under no circumstances should any other solvent be added to the multicolour.

The cross-lap method of application is normally used, using a 50% overlap with each pass. The spraygun should be kept at right angles to the surface while spraying. After completion, surfaces should be carefully inspected for patchiness, banding or pinholing, all indications of insufficient application. Spreading rates vary depending on the texture/boldness of the pattern being sprayed. We recommend an average spreading rate of 3.0 square meters per litre, particularly where overspray and wastage has to be allowed ofr, however with medium and finer fleck patterns, sprading rates of up to 4 square meters per litrey or more are common. Ensure good ventilation of area to be sprayed. After use, equipment may be flushed with water. To clean off adherent paint, use Mineral Turpentine.

Where surfaces will be subjected to excessive hand/body contact, a clear overcoating is desirable.  A spray-applied  solvent based acrylic clear coating is recommended.  Where the clear coating cannot be spray applied, an alternative water-based acrylic clear coating can be supplied, which does not have quite the wear resistance features of the solvent based coating, but for most purposes, will do an acceptable job

After Application

Surfaces are touch dry within 3 hours, and hard dry in 24 hours under normal conditions. Allow 1 week for full cure of coating before washing. Normal soiling can be cleaned using standard soapy cleaners. Do not use cleaners containing solvents or abrasives. Further cleaning and touch up advice is available on request.