EVONIK CORPORATION › ACEMATT® HK 400 ACEMATT® HK 400 $0.00 ACEMATT® HK 400 is an untreated, medium particle sized precipitated silica. It is especially recommended for pigmented systems. Quantity: Add To Cart Added! ACEMATT® HK 400 is an untreated, medium particle sized precipitated silica. It is especially recommended for pigmented systems. You Might Also Like ACEMATT® 3400 ACEMATT® 390 ACEMATT® 3300 ACEMATT® OK 412 ACEMATT® OK 520
