Scotchlite 3900 Diamond Grade Reflective Sheeting Series is a wide angle prismatic lens reflective sheeting designed for the production of durable traffic control signs and delineators that are exposed vertically in service.

The cube corner lenses in this sheeting are designed to provide higher sign brightness than sheetings that use glass bead lenses.

The interlocking diamond seal pattern is unique to 3M wide angle prismatic retroreflective sheetings. Because of the small cube corners, the seal cell walls or legs appear smooth.

The sheeting is made with small arrows in the surface repeated three times across the roll and at 300mm intervals down the roll. These arrows which point down the length of the roll serve as reference marks for photometric testing. The arrows are also used as visual aids to sheeting orientation when fabricating signs for special high entrance angle situations.

The Scotchlite Diamond Grade Series 3970 LDP Reflective Sheeting - Class 1A is designed for Long Distance Performance. Scotchlite Diamond Grade Series 3990 VIP Reflective Sheeting -Enhanced Class 1 is designed to provide high sign brightness and Visual Impact Performance at short sight distance where other reflective sheetings do not.