Water-based bonding adhesives are being increasingly specified
and used as replacements for conventional solvent-based bonding
adhesives in an effort to reduce volatile organic compound (VOC)
emissions. However, water-based bonding adhesives have notable
temperature and condition limitations, and NRCA has received a number of reports of
problems related to such adhesives.
As part of an effort to achieve federally mandated standards in
the Northeast and Mid-Atlantic, the Ozone Transport Commission
(OTC) developed model rules for adhesives and sealants that
regulate VOC content. Specific states' regulations and
implementation timetables vary slightly, but they generally require
adhesives, sealants and primers to contain a maximum of 250 g/L of
VOCs by Jan. 1, 2012.
Similar VOC limits occur as targets in some voluntary
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