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Chartwell International Inc. (USA).
Chartwell International, Inc. of USA offer a
range of non-silane based adhesion promoters and coupling agents for a variety
of industries including:
Coatings.
Plastics.
Adhesives.
Rubber.
Inks.
Abrasives.
Metal Pretreatment.
Glass & Ceramics.
Chemical Description:
They are unique compositions based upon
proprietary organofunctional metal organics supplied as solutions in water,
ethylene glycol, propylene glycol, diethylene glycol, or dipropylene glycol.
Compatible and stable in water-borne and solvent-borne systems.
General
Advantages:
In general, the main advantages of the Chartwell
range are:
Products
are hydrolytically stable. Improvements in adhesion measured at time of
coating, ink or adhesive preparation DO NOT decrease after 60 days or more of
ageing in contrast with other systems such as silanes in waterborne systems.
Products
are stable in humid environments.
Chartwell
range can be used in both water and solvent based products.
At
normal use Chartwell range are
indefinitely stable
over the pH range 4-10.
Chartsil (solid) range can be used in powder coatings and
sulfur cured rubbers.
Many Chartwell products costing down to 50% of silane (and most
other) alternatives, but used on 1:1 replacement basis offer real formulation
savings.
They
improve durability performance and extend lifetime of the applied
product.
Chartwell range are non-flammable and non-corrosive, containing
non-toxic metals.
Chartwell International, Inc. is a customer-oriented and
dedicated supplier. All sample requests and orders shipped promptly.
Applications
Chartwell International, Inc. Adhesion Promoters
may be used in a variety of industries including:
Coatings:
Are commercially used in all industrial solvent-borne,
water-borne and powder coatings.
Are used in coil coat primers for salt fog resistance.
Are used in polyester/melamine topcoats for pigment
dispersion.
Improve wet adhesion to metals, concrete, plastics, wood etc.
Use on metals increases corrosion resistance and salt fog
resistance; generally by two fold.
Improve humidity resistance, corrosion resistance, pigment
dispersion.
Reduce creep at the scribe.
Are easily post-added to water-borne coatings.
Plastics:
Improve pigment/filler dispersion.
Improve physical strength properties of mineral filled
composites (thermosets and thermoplastics).
Provide enhanced adhesion of water-borne acrylic to Mylar and
treated polypropylene.
Adhesives:
Are commercially used in all water-borne and 2-K epoxy or 2-K
Urethane adhesives.
Substantially improve adhesion of rubber, epoxy, polyurethane
etc to metals, plastics and elastomers.
Provide enhanced adhesion of water-borne acrylic pressure
sensitive adhesive to Mylar (enables slitting of stock without adhesive
build-up).
Rubber:
Are
commercially used in SBR, EPDM, nitrile rubbers.
Provide
excellent adhesion of formed rubber articles to metals, rubbers and synthetic
plastics (e.g. PVC) etc.
Confer
improved abrasion resistance.
Inks:
Are
commercially used to markedly improve adhesion of water-borne inks to plastic
film (including treated polyethylene and treated polypropylene).
Abrasives:
Improve
wear resistance and durability.
Metal Pretreatment:
When
used in treating metals with dilute aqueous solutions (containing non-toxic
metals) provide marked increase in adhesion of varied coatings.
Glass & Ceramics.
Improve
adhesion and durability.
Please contact Chemicalia Pty Ltd for further assistance. | 
