ASTM D4956 Type 4 High Intensity Micro Prismatic Retro Reflective Sheeting. Type 4 reflective films utilize man made prisms for reflectivity. More efficient micro prisms make the films twice as bright as high intensity glass bead films, and 7 times brighter than engineer grade. Type 4 films reflect out further than lower typed glass bead films. The difference can be seen on the spec sheet below. HIM is a thicker acrylic based film, so CAD cutting is difficult. These films are best used for sign backgrounds, bollards, building corners, dumpsters, fire hydrants, roll off containers, trailers, etc.. Sold in wide and narrow rolls. Available in all traffic colors as well as striped barricade tapes in white/red and white/orange. We carry Nikkalite for our Acrylic based type 4 films, and Oralite for our flexible PVC based films. (work zone)
Type 4 is produced by different manufacturers. The specifications sheets on this page are from Nikkalite and Oralite. Others will have similar photo-metrics.HIM
Steven Cole (Economics, MBA – University of West Florida , Business & Innovation – Stanford University) 25 years of experience in the reflective safety business. Specializing in vehicle accident and rear end collision reduction through increased visibility.