Polar® Blockout is an opaque printable block out film ideal for two-sided window graphics and other block out layer needs . To create eye-catching two-sided window graphics, simply combine Polar® Blockout with a reverse printed Clear print media, such as Drytac SpotOn® Clear Gloss or Polar® Dynamic Clear. Polar® Blockout’s high opacity prevents graphics from showing through on the other side when using as a cover up graphic or label.