Standard tacky mats are plastic film layers of polyolefin. The adhesiveness of the standard tacky mats is pressure sensitive and acrylic based. The film has no measurable amount of cadmium, chlorine, sodium or lead content. Also, there is no release coating left behind by the top and bottom film. - Clean room mats are tacky mats that help trap impurities for locations that require stringent dust and dirt control. Our clean room sticky mats feature a tacky surface which removes dirt and dust from shoe surfaces before they can contaminate a clean room.