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Space for beller discs

28th February 1987
Page 82
Page 82, 28th February 1987 — Space for beller discs
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• Traditional aluminium oxide coatings on fibre grinding discs are a thing of the past, according to 3M Automotive Trades, which has brought out a highperformance alternative, the Cubitron range for metal grind ing in the bodyshop.

A ceramic mineral coating said to be a spin-off from space technology is used on the new range, developed partly in response to the increased grinding demands set by Ml( (Metal Inert Gas) welds. The discs are designed for vehicle body repair processes including door skin removal and flange grinding as well as weld grinding and rust removal. In a test watched by a Workshop reporter the new disc smoothed a weld in 1.02 minutes compared to 1.40 minutes with a conventional coating.

Significantly, says 3M, after five minutes continuous use the Cubitron grinding disc still cuts efficiently while others have dulled out and begun to generate heat.

The discs are available in three grades — 50, 36 and 24 grit — and in both 100mm and 178mm diameter versions. The discs also feature a phenolic bonding system for improved heat and moisture resistance and stand up better to pressure applied on the tool by the operator.

The Cubitron grinding discs have an advanced closed-coat construction for increased surface contact.

3M Automotive