Permalac SR is a one-part, clear, scratch-resistant topcoat. This product is VOC-compliant according to CA state guidelines. It is recommended that base layers of Permalac, either 2 coats of Permalac NT (recommended) or 3 coats of Permalac Original/EF, be done prior to applying the Permalac SR. Apply 1 coat of the Permalac SR on top to provide a final, scratch-resistant layer. It is available in satin or matte finishes.