The
Society of Protective Coatings (SSPC) released
its latest Abrasive Specification – SSPC-AB 4,
making it the first update since 2000. The AB
series of specifications establish proper quality
controls and procedures for using Recyclable
Encapsulated Abrasive Media during surface preparation.
While these standards are not referred to directly
in many coating specifications, they are used
from within other SSPC documents – most notably
SSPC-SP7, SSPC-SP6, SSPC-SP10 and SSPC-SP5. These
are perhaps the most widely cited standards for
surface preparation world wide and certainly
within the USA. The SP series of standards has
always required that abrasives meet an AB quality
standard. Before this AB 4 release, exceptions
allowed for the use of composite abrasives like
Sponge Media, as no AB abrasive quality standards
were applicable.
"Now with AB 4 in place it
will be easier to specify and utilize this new
environmental cost-saving abrasive technology..." explains
Bill McLaughlin, Sponge-Jet VP of Technology,
"coating engineers and facility managers
can now use SSPC-AB 4 to properly specify composite
abrasives." He
adds, "It is important to note that these
composite particles not only have standard high-performance
abrasives – such as aluminum oxide, and
steel grit but also include a second component
which has the dust and rebound suppressant qualities
known to this abrasive type."
As SSPC suggests, "this standard
provides requirements for selecting and evaluating
abrasive media encapsulated in a compressible
non-uniform matrix." Other generic names for
Recyclable Encapsulated Abrasive Media that
may meet this specification are: pliant media,
composite abrasives, soft abrasives or manufactured
abrasives. This standard will further allow
engineers wishing to specify a low dust, low
damage (low ricochet) abrasive on a particular
project to specifically cite AB 4 as part of
the surface preparation standard. For example:
" The surface shall be abrasive blasted to
a SSPC-SP 5 (white metal) level of cleanliness
utilizing abrasives which meet the AB 4 quality
standard".
To learn more about the new
SSPC-AB 4 specification, contact the Society
of Protective Coatings at +1-412-281-2331
or visit http://shopping.netsuite.com/s.nl/c.579824/it.A/id.354/.f.
Sponge-Jet is headquartered
in Portsmouth, NH. They are the world's
leading manufacturer of dry, low dust abrasive
blasting media and equipment. For more
information, contact your local Sponge-Jet
representative, visit www.spongejet.com
or call
1-603-610-7950
(in Europe call +44(0)1253390731).
Note: Other
surface preparation standards such as:
NACE (National Association of Corrosion
Engineers) No. 4, No. 3, No. 2, No. 1 and
ISO's SA-1, SA-2, SA-2 1/2 and SA-3 compare
directly to the SSPC SP series of standards
described above.
Contact Tony Anni at 603-610-7950
or via email at marketing@spongejet.com |