Decorative Surfacing
Optus Decorative Surfacing Systems comprise natural stone aggregate fixed in place with polyurethane resin. This type of surfacing is used in many areas such as footpaths, driveways, patios, concourses and in general landscaping schemes. It has been developed to overcome problems encountered with loose stone surfacing where stone tends to spread over adjacent areas and collect rubbish and weeds.
These attractive systems have the appearance of loose gravel, but none of the disadvantages. They can be specified to blend in and harmonise with their surroundings.
Two systems are available:
The resin bonded system
This uses a clear or coloured resin adhesive over which a natural stone aggregate is spread. With this system the maximum stone size is usually 5mm and the surface appearance free from resin and highly textured.
The resin bound system
In this system a highly light stable resin is mixed with stone aggregate and applied as a thick relatively smooth screed. Larger aggregates are possible and there is virtually no limit to the depth. The size of stone is however normally limited to 10mm. The surface can be trowelled or tamped and have an open or closed texture. The resin coating enhances the natural colour of the stone.
Both systems have the marked advantage over cement-based alternatives in that they are rapid curing and more flexible. Reasonable movement of a substrate can be accommodated and this is important on flexible bitumen macadam surfaces.
These systems can be applied over concrete, bitumen macadam, metal, timber and many other surfaces accepting both foot and vehicle loadings.
