There are two main types of polyurethane resin which are used for resin bound surfacing. The two are known by a variety of different names such as: standard, UVR, aliphatic, aromatic, UV stable resin, non-stable Resin and other manufacturer specific names.
The differences between the two are as follows: Non-UV Stable Resin (aka aromatic, standard resin) is the least expensive resin which has a slightly more yellow tone and gives a honey like tint to the aggregate with which it is mixed and will slightly yellow over time with the effects of UV rays from daylight.
UV-Stable (aka aliphatic, UVR) is a premium resin which is clear and resistant to the effects of UV rays from daylight. This should be used in situations where the natural colour of the aggregate is to be retained or to negate the honey tones produced by gravel mixed using a standard aromatic resin.
|Laying Conditions for Resin Bound Gravel|
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