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Chemical grafting is a process where one "foreign" material becomes
attached to another "base" material (substrate) by means of a chemical bond and
may be visualized as the growth of "whiskers" onto the substrate. Conventional
coatings "sit" on the surface and adhere to the substrate by weak mechanical
forces which are easily broken, (characterized as peeling, chipping,
delamination). Voids,
pinholes and other substrate irregularities cannot be completely protected by conventional
coatings due to their molecular "bulk" and the "weak-force" attachment
mechanism. This results in the accelerated failure of conventional coatings when exposed
to moisture, salt, and other chemical substances in their environment.

SUBSTRATE'S
chemically
grafted coatings achieve complete, molecular-level monomeric surface penetration and
"strong-force" covalent bonding to the substrate and can be modified to enhance
desired properties such as coating thickness and resistance to corrosion, abrasion, impact
and UV degradation. Unlike conventional coatings, the grafted coatings provide permanent
surface modification.

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