Resin bound patios, pathways, and driveways will last many years. They are also hardwearing and require little maintenance.
The main types used to make driveways are UV stable polyurethane or non-UV stabilised polyurethane. UV stable resin is more refined. It is therefore a better quality resin. Therefore, it is the most costly of both.
What is the real difference between these two? It is very simple. UV stable or aliphatic polyurethanes (or aliphatic for scientists out there) retain their clear colour and aren’t affected by UV radiation. Non UV Polyurethanes (aromatic for scientists) change to a darker brown colour if exposed to UV. UV is the best option if you want your resin-bound surface to remain the same colour. UV is essential if you use a light or colored aggregate blend. The finished product will not be the same as the one you chose.
Non-UV may be acceptable if the aggregate mixture is yellow/brown. However unless the surface is fully exposed to UV, there will likely be some colour variation due shading. This is high risk because of parking cars, gates and trees as well as pots and pots. ).
According to some sources, Non-UV stable resins can be brittle due to UV exposure. However, the industry was originally completely Non-UV. It has been proven strong and durable. Non-UV resins are often stronger than UV stabilised resins. Use materials with a proven track record.