GREMARK® PG63 3X is a flat printable, flame retardant, polyolefin heat shrink tubing. GREMARK® PG63 3X offers an excellent solution for cable identification and meets the highest requirements in railway, military and industrial sectors. GREMARK® PG63 3X is suitable for electrical cable insulation and for identifying cables and wires. It is widely used in the railway, automotive, industrial and military sector.