Grit Material: Blue-fired Aluminum Oxide, white aluminum oxide
Backing Material: Glass fiber reinforced latex paper

The SIA Abrasives 1948 SIAFlex aluminum oxide paper is known for it's versatility and is ideal for working tricky surfaces that are difficult to reach. It can be used in wet and dry sanding applications and is designed for manual or machine sanding. This paper provides high stock removal with an amazing finish, a long lifetime, and can be used on various surfaces.