This is a 8 mil, yellow, varnish coated cotton cloth with a pressure-sensitive adhesive. Packed in bulk with 24 rolls per case. NOTICE: New straight weave cambric. Please review the Scotch ® Varnished Cabric Tapes 2510 and 2520 Data Sheet Carefully to ensure this product meets your application requirements. This Scotch® Electrical Insulating Varnished Cambric Tape 2520 used