Plastic Abrasive Blast Media (PABM) are considered specialty media that are typically used in very specific applications. There are three primary types of PABM that are differentiated by their hardness; although, all of these media are considered softer and less aggressive than more popular blast media. PABM are manufactured to meet the military specification MIL-P-85891-A which details the different types.
Urea (Type II) is the most popular plastic abrasive media. Urea is typically used for auto paint stripping. Urea is a soft media {in between Melamine (Hardest) and Acrylic (Softest)}. Urea media can be used for mold and tool die cleaning/stripping.
Melamine (Type III) is typically used when a technician is not as concerned about the surface finish of the substrate relative to blasting cycle time. Melamine offers the quickest strip rate of all three PABM. Melamine media also breaks down the quickest of the three.
Acrylic (Type V) is the least used of all three medias. Acrylic is a truly specialized media and is used for applications like fiberglass, boats, helicopters and aircraft. Acrylic media will last the longest of all three medias.
Friday, January 9, 2009
Subscribe to:
Post Comments (Atom)
Posts
0 comments:
Post a Comment