7 mil white polyester film with a brilliant white glossy finish for outstanding “color pop” and a grayback for 100% lightblock. The durable construction is engineered to withstand repeated rolling in portable display units without tearing or edge fraying. Instant dry & water resistant. The lightblocking layer eliminates image washout caused by light diffusion. Dye & UV Inks.

Sihl 3170 Data Sheet.pdf