Where re-fuelling or maintenance operations are to be undertaken, the same considerations apply as for hanger floors. However, where areas are simply intended for aircraft parking, high-strength design asphalt mixtures, particularly high-stone content asphalts have been used for the purpose and should prove satisfactory. Where a degree of oil resistance is required asphalt mixes containing proprietary oil-resisting binders should be considered. Where the larger aircraft are involved, epoxy asphalt may well prove the most suitable surfacing.