double sided tape substrate : PET,black with different adhesion on two sides certificate : ISO, SGS 1. ... viscosity and holding power2.high and strong cohesive force,easy to operate3.black PET in good shading4.used in LED light ,backlight ... ±300 gf-inch0.080 ±0.0524 hwidth and length according to the customer's requirements. *Have SGS,CTI,ISO,ROHS certifications ...