Knowledge Base About the materials Is the resin coloured? Article sections No, BasePro do not use any coloured resins with our resin bound system. Last Updated: 7 years ago in About the materials Related Articles What will happen to resin bound surfacing during times of extreme heat or freezing? What size of stone is used for the resin bound surfacing? Is resin bound surfacing strong enough to take vehicles? Will the resin change colour over time? Is the stone natural or man made?