Metzger/McGuire Gallon Stain Prevention Film (SPF) has several chemical choices to fill joints and cover surfaces. It can be used to protect conventional concrete, colored concrete, stained concrete, tile and other surfaces.
Spal-Pro SPF is a water based, one component liquid that, when dry, creates a film. This film creates a protective seal over concrete to prevent or reduce staining caused by joint filler and joint sealant overfill. SPF will prevent staining by most epoxy, polyurea and polyurethane fillers and sealants.