What is White Fused Alumina 220#?
White Fused Alumina (WFA): A synthetic abrasive known for its high purity (over 99% alumina), extreme hardness (9.0 on the Mohs scale, second only to diamond and silicon carbide), and excellent wear and corrosion resistance. 220# (Grit 220): This refers to the particle size. Grit 220 is a medium-fine grit, which provides a balance between a relatively smooth surface finish and strong abrasion resistance. It’s a very common choice for durable protective coatings.
Why is this a Good Choice for Pipe Guardrails?
Abrasion and Impact: Resists damage from scraping, bumping, or impact from equipment, vehicles, or other objects. Corrosion: WFA itself is chemically inert, making it ideal for harsh environments like coastal areas (salt spray), chemical plants, or roads treated with de-icing salts. Weathering: Provides long-term protection against UV radiation, rain, and temperature fluctuations. Cleanability: The hard, dense surface is easy to clean and prevents dirt and contaminants from embedding.
Resulting Coating Properties:
High Abrasion Resistance: The hard WFA particles form a protective, textured shield. Excellent Anti-Slip Properties: The 220# grit creates a rough surface ideal for safety underfoot.
Common Applications:
Industrial Facilities: Factories, warehouses, oil & gas platforms. Marine Environments: Bridges, piers, docks, offshore platforms. Infrastructure: Highway overpasses, bridges, tunnels.