BRICKFORM Matte-Magic, Gloss Reducing Additive BRICKFORM Matte-Magic is a powdered flattening agent additive for Brickform solvent based sealers. The original topcoat gloss is reduced based on the amount of additive used. The finished gloss reflectance can be varied from semi-gloss to satin. Matte-Magic comes in 16 oz units, with cases of 8 units. Each unit is added to a 5 gallon sealer for gloss reduction.