SP3 - Power Tool Cleaning - Removal of all loose rust, loose mill scale, and
loose paint to degree specified, by power tool chipping, descaling, sanding,
wire brushing, and grinding.
SP6/NACE No.3 - Commercial Blast Cleaning - Blast cleaning until at least
two-thirds of the surface area is free of all visible residues. (For
conditions where thoroughly cleaned surface is required.)
From: Bill Polhemus [mailto:bill(--nospam--at)polhemus.cc]
Sent: Thursday, April 05, 2001 10:08 AM
Subject: QUERY: SSPC Definitions
If someone wouldn't mind, could you please give me a summary of the
definitions Structural Steel Painting Council (SSPC) SP6 (Commercial Blast
Cleaning), and SSPC SP3 (Power Tool Cleaning)?
William L. Polhemus, Jr., P.E.
Polhemus Engineering Company