Resin Bound Tree Pits

BoundWorx® TP System

Red Granite Tree PitTree pits are an attractive, practical and environmentally friendly solution for covering and protecting the bases of trees where soil and roots are exposed. This permeable system helps to alleviate the usual problems of vandalism, litter entrapment and messy loose gravel while giving a smart finish and still allowing the tree to grow.

The finish is made by combining a high strength UV stable polyurethane resin with a 6-10mm sized washed and dried aggregate. The resin and aggregate are mixed together in a forced action mixer or, for smaller quantities, mixed in a tub with a 110v drill and paddle mixer, and then the material is trowelled to a depth of 50mm.

Double Tree Pit

Preparation And Application

A pit is formed using concrete or similar edging. The area of the tree pit should be a well compacted urban tree soil and the area to be laid should be clean and dry.

The resin and aggregate are mixed together in a forced action mixer or, for smaller quantities, mixed in a tub with a 110v drill and paddle mixer, and then trowelled to a depth of 50mm. Tree pits that have wide spans or that take occasional vehicular traffic should be laid at a depth of 75mm or more, depending on the anticipated traffic loading and span.

To aid grip when using a rounded aggregate finish, we recommend scattering a fine layer of glass grit or clear quartz sand after the materials have been laid and before the resin has cured.