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All Tech Industries'
coatings and sealants can be defined as the result of a chemical reaction
between an isocyanate (MDI or HDI pre-polymer ) and an
amine-terminated resins (amine or resin).
The isocyanate can be aromatic or aliphatic in nature. It can be
monomer, polymer, or any variant reaction of isocyanates,
quasi-prepolymer or a prepolymer.
The prepolymer, or quasi-prepolymer,
can be made of an amine-terminated polymer resin, or a
hydroxyl-terminated polymer resin.
The resin blend must be made up of amine-terminated polymer
resins, and/or amine-terminated chain extenders. The
amine-terminated polymer resins will not have any
intentional hydroxyl moieties. Any hydroxyls are the result
of incomplete conversion to the amine-terminated polymer
resins. The resin blend may also contain additives, or
non-primary components. These additives may contain
hydroxyls, such as pre-dispersed pigments in a polyol
carrier. Normally, the resin blend will not contain a
catalyst(s).
The
industry also allows the use of pigment dispersions in
coatings and sealants
(these are commonly used as
colorants) assuming correct stoichiometric calculations have been used. These amines are
generally comprised of polyetheramines and a primary amime
chain-extender which is used to impart hardblock content and
place the formulation on a 1:1 by volume ratio. All Tech Industries'
coatings can also be comprised of aspartic esters which
provide amine functionality.
All Tech Industries'
coatings and sealants provides a chemical
backbone containing amine linkages.
All Tech Industries'
coatings and sealants are
generally
used as an industrial coating in severe environments with
good chemical resistance to hydrocarbons and hydrogen
sulfide gas and immersed sewage applications.
Spray
Foam Insulation-
All Tech Industries'
Spray
Foam Insulation
can be defined as the result of a chemical
reaction between an isocyanate and a polyol. It is important
to realize that spray foam insulation requires the use of a catalyst
to complete the reaction in a timely manner. As with
sealants and coatings, a pigment dispersed in a polyol is generally used
for colorant. These formulations generally require various
volume ratios and ambient temperatures. Usually these
formulations have no amines in the backbone. All
functionality is considered to be hydroxyl (i.e. containing
alcohols).
All Tech Industries'
Spray
Foam Insulation
are generally used as casting
materials and foams. They show good longevity and are
relatively inexpensive.
Hybrid-
Hybrid formulations can be defined as
the result of a chemical reaction between an isocyanate and
a mixture of polyol and amine reactants. These formulations
generally provide an “intermediate” coating or sealant that displays
many of the same properties of a coatings or sealants. However, hybrid
formulations can also display some of the negative problems
associated with Spray Foam Insulation chemistry. In coatings
formulation, hybrids generally contain a polyether/polyester polyol and a primary amine resulting in a chemical backbone
comprised of amine and hydroxyl functionality. coatings and
sealants/insulation
hybrids are normally associated with use on “non-critical”
items that generally do not require immersion or extreme
temperature conditions for application. Some examples of
these applications include sprayed-in truck bed linings and
balcony deck coatings.
Aromatic:
Chemistry.
Of, relating to, or containing one or more six-carbon rings
characteristic of the benzene series and related organic groups.
Aliphatic:
Of,
relating to, or designating a group of organic
chemical compounds in which the carbon atoms are
linked in open chains.
[From Greek aleiphar, aleiphat-, oil,
from aleiphein, to anoint with oil.]
If you don't see your
system listed,
contact an All Tech Industries engineer today
(989-826-9999)
for a deeper discussion about your specific requirements.
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