Acrylic Finisher is a sealer to help prevent any paint chipping, scratches, sealing your Angelus Leather Dye, and also to provide different sheens. All the Acrylic Finishers contain a different shine to them. Matte has the least amount of shine while the High Gloss has the most amount of shine.
Please see second picture for reference. The order based on the amount of shine to the Finish is as follows from the least to the most - Matte, Satin, Regular, then High Gloss.
*Make sure your surface is completely dry and ready for finisher before applying.