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The
primary technical focus of the waterborne, water repellent is
the commercial production of a waterborne, water repellent,
which contains natural products and exceeds the performance
properties of existing water and solvent borne commercial systems.
While there are several waterborne products currently available,
the vast majority of commercially available water repellents
are high Volatile Organic Compound (VOC) solvent-based systems.
VOCs are suspected of causing numerous atmospheric and environmental
issues; thus the Environmental Protection Agency (EPA), along
with additional state environmental agencies, began a reduction
in the permissible VOC levels of coatings in the early 1970s
which continue today. This reduction in allowable VOC levels
enhances the primary marketable feature of waterborne systems
which is typically lower VOC levels when compared to solvent-based
systems.
A
new generation of waterborne water repellents has been developed
at USM. These products contain as much as 15% agricultural materials
and preliminary performance is promising. Long term evaluation
is under way while new products continue to be formulated. |
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