EVONIK CORPORATION › ACEMATT® OK 607 ACEMATT® OK 607 $0.00 ACEMATT® OK 607 is a fine particle sized wax treated precipitated silica. It is suitable for pigmented and non-pigmented systems. Add To Cart Added! ACEMATT® OK 607 is a fine particle sized wax treated precipitated silica. It is suitable for pigmented and non-pigmented systems. You Might Also Like ACEMATT® 3300 ACEMATT® HK 440 ACEMATT® 810 ACEMATT® OK 900 ACEMATT® OK 390