Vertex® 90 ST1 is a fine particle size fatty acid treated Magnesium Hydroxide (MDH).

Vertex® magnesium hydroxide products provide excellent fire retarding and smoke suppression performance for the thermoplastic and elastomeric compounds.

Vertex 90 ST1 is a fatty acid-treated product that provides superior fire performance and enhanced mechanical properties when used to make fire-rated polymeric compounds. The surface treatment promotes uniform dispersion of the magnesium hydroxide in the polymer used and enhances compounding and processing throughput, providing enhanced compound performance especially for high-loading applications in halogen-free polyolefins.