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Most commonly used application
methods:
Coatings
Coatings are applied on the surface of substrates to improve
the functional properties and durability. Conventional coatings
need extensive surface preparation for adhesion and need to
build up thickness for performance. Such is not the case with
APS' coating formulations. Most APS coatings can be applied
in one step with no or minimal surface preparation. In addition,
due to the chemistry of APS' chemical grafting process, thinner
coatings can be used to achieve a higher degree of property
performance. Delamination will not occur due to the chemical
bond formed between the coating and the substrate with some
subsurface penetration occuring through the use of molecularly
small and lightweight monomers.
Typical coating methods can be used such as dip, spray, roll,
flow coat, etc. APS coatings can be formulated to be air dried,
however, in the interest of time, heat or some energy source
(i.e., UV or infrared lights) can be used.
Additives
APS can develop additives to incorporate into the raw material/resin
prior to extruding or molding. In this case, the new properties
will penetrate the matrix of the material. APS chemists will
adjust the formulation to conform to the processing parameters
used by the manufacturer. Due to the molecular bond formed
by APS' process, the new properties will not migrate and leach
from the material over time, even under severe conditions.
Laminates
APS chemists have extensive experience in bonding the same
or different substrates together. Materials that are difficult
to adhere to are effectively bonded with APS' process. Again,
no or minimal surface preparation is needed and the end result
is a chemical attachment of one substrate to the other. Consequently,
substrate failure will occur before adhesion failure. In addition,
if two substrates with different coefficients of thermal expansion
are bonded, an APS developed adhesive's bonding action will
not be affected. Such is not the case with conventional adhesives
which cannot withstand the varying expansion and contraction
of different substrates.
Application of all APS chemical grafting formulations can
applied at ambient temperatures and normal atmospheric conditions.
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