degrees oof ccleanliness oof bblast-cleaned ssurfaces
TRANSCRIPT
White Metal
Brush-OffTightly adherent mill scale and rust mayremain on the surface. Mill scale and rustare considered adherent if they cannot beremoved with a dull putty knife.
CommercialEvenly dispersed very light shadows,streaks and discolorations caused by stainsof rust and mill scale may remain on nomore than 33% of the surface.
Near-white MetalEvenly dispersed very light shadows,streaks and discolorations caused by stainsof rust and mill scale may remain on 5%of the surface.
White MetalFree of all visible oil, grease, dirt, dust,mill scale and rust.
DDeeggrreeeess ooff CClleeaannlliinneessss ooff BBllaasstt--CClleeaanneedd SSuurrffaacceess*
SSPC-SP 7NACE No. 4SA-1
SSPC-SP 6NACE No. 3SA-2
SSPC-SP 10NACE No. 2SA-2 1/2
SSPC-SP 5NACE No. 1SA-3
*Images shown are previously uncoated surfaces, viewed without magnification
For the complete official guide to surface cleanliness, refer to SSPC-Vis-1: Guide and Reference Photographs for Dry Abrasive Blast Cleaning; SSPC Publication 02-12 www.sspc.org
Key: Steel where mill scale has started to flakeand light rusting occurs.
Key: Steel where all mill scale has flakedoff and complete rusting has occured.
Key: Steel where pitting and complete rustinghas taken place.
Commercial
Near-White Metal
Brush-Off Brush-Off Brush-Off
Commercial Commercial
Near-White Metal Near-White Metal
White Metal White Metal
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©2007 Clemco Industries Corp. • Washington, MO 63090 • www.clemcoindustries.com
Impact of Nozzle Wear on Air Consumption
System Air Volume Requirements at 100 PSI
Compressed Air and Abrasive Consumption Pressure Loss in Air Hose
Abrasive Comparison
®
Distributed By
JN 2064-0998, Rev. D 06/07Stock No. 21932
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