WFA 46 Grit Guide: Applications, Specs & Sourcing

The phrase 'WFA 46' refers to White Fused Alumina (WFA) with a #46 grit size, a high-purity synthetic abrasive widely used in industrial sandblasting, surface preparation, and precision cleaning Hlh-Js. It is characterized by extreme hardness (Mohs 9) and chemical stability, making it the preferred choice for treating sensitive materials like stainless steel without risk of iron contamination Hlh-Js.

Product Overview

WFA 46 is a medium-coarse grit valued for its angular structure, which provides aggressive cutting power while maintaining a controlled profile on surfaces Hlh-Js.

Key Properties: High purity (>99% Al₂O₃), iron-free, friable (self-sharpening), and heat-resistant Hlh-Js Amazon.
Primary Applications: Rust and scale removal on stainless steel, aerospace component cleaning, manufacturing of bonded abrasives (grinding wheels), and high-grade refractories Hlh-Js.

Market Trends & Insights

Safety and Sustainability: There is a clear market shift toward WFA as a safer alternative to silica sand to prevent silicosis, and its recyclability in enclosed blast rooms makes it more cost-effective than single-use slags like copper slag Hlh-Js.
Sector Growth: Demand is particularly strong in the medical device, aerospace, and electronics industries, where substrate purity is non-negotiable Hlh-Js.
Pricing: B2B market prices currently range from $0.88 to $0.95 per kg for high-purity abrasive grades, while large-scale refractory grades can be sourced between $400 and $800 per metric ton .

I have compiled a list of 29 suppliers and products for WFA 46, including detailed pricing and manufacturer rationale. Please check the deliverable below for the full list.

Wfa 46

Overview

Product Overview

Market Trends & Insights

White Fused Alumina Wfa 46 Grit

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