August 2, 2016 By Ultra Black Border – 500mL Ultra Black is a non-reflective Black Border Goo for trimming your screen and to absorb any overlapping light from your projector. Category: Classic Screen Goo Description Description Price: $44 SIZE – 500mL SKU – 4605 Related products Reference White 1000mL Pair Reference White 16L Finish Coat High Contrast 16L Finish Coat Max Contrast +20 16L Finish Coat