Micronized Laboratory Abrasives

Micronized Laboratory Abrasives (MLA) are a new tool available to the Materials Scientist from PSI. MLA Products, manufactured by the 3M Company, can replace the traditional abrasive papers commonly used in the Met Lab. The unique features of this product enable the user to achieve the basic laboratory requirements of specimen finish and flatness. With MLA, these goals will be reached with greater speed and more repeatable results.

Excellent specimen finish is achieved by the precision grading system used to select abrasive particles for each grade. Classified by the more accurate micron grading system, particle size grading is held to much tighter tolerances than conventional abrasive products. This results in a higher density of the specified particle size available to do the grinding required. This controlled uniformity of particle size, combined with electrostatic coating of the polyester film backing, provides an unexcelled grinding product.

Specimen flatness is achieved and maintained through the grinding steps by the consistent 5 mil caliper of the dense, polyester backing. Unlike the traditional paper products, the abrasive particles cannot "recede" into the backing. This feature results in shorter grind times and longer life because the abrasive particles remain at the "cutting" interface. Shorter grind times mean less heat generation in the sample. Longer life means improved lab economics.

MLA products are available in both Aluminum Oxide (Al₂O₃) and Silicon Carbide (SiC). Aluminum Oxide is recommended for use on ferrous materials. Silicon Carbide product should be used on non-ferrous materials. Both abrasive types can be ordered from PSI in discs, rolls and sheets. A complete description of the various available products can be found in the PSI Catalog.

If your lab work can benefit from flatter, more consistent finishes combined with shorter grinding cycles and longer abrasive life, you should consider Micronized Lab Abrasives from PSI. Samples are available at no charge by contacting the PSI office.