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Phenolic resins are used in many high-performance coating applications, where industries need outstanding corrosion protection against most acids, solvents, and salts. Resins, pigments, solvents, additives, and intermediates make up the SI Group portfolio for coating formulations. Phenolic resins alone in surface coating formulations may face common occurrences like rigidity, low color stability, and requiring thermal curing. Combining phenolic resins with additional resins like epoxy, polyester, or alkyds, allows for greater adhesion in surface coatings as well as chemical resistance.
Coating technology is a very complex process that involves resins, pigments, solvents, and additives. Cross-linking phenolic resin with alkyds and epoxy resin allows for outstanding metal surface coatings with high adhesion and chemical resistance. This compatibility with various blends offers formulators the chance to strengthen the inherent brittle phenolic resin films for a wider commercial applications.
Industry | Resin Type | Applications | Compatible Systems |
---|---|---|---|
Metal Packaging | Resols Etherified Resoles |
Metal coatings that are applied in the interior of the can for various foods, beverages, aerosols, tubes, industrial containers and drums. | Epoxy, polyester PVB |
Industrial Coatings | Resoles Novolacs Epoxy Novolacs |
Industrial coatings for tank linings, pumps, machinery, marine, pipes, wash primers, hoods, and residential coil coating (HVAC coatings). | Epoxy, alkyd, polyester |
Electrical Insulating Coatings | Resols Etherified Resoles |
Electrical coatings that protect the primary and secondary insulation of electrical components. | Alkyd |
Printing Inks | Resols Novolacs |
Printing ink modifier that provides pigment dispersion, flowability, viscosity and adhesion of the ink onto difficult substrates. |
Rosin and other rosin modifiers |
Powder Coatings | Novolacs | Modifier and curing agent for this specific coating application which can be applied electrostatically and cured under heat of UV. | Epoxy |
The SI Group's phenolic resin portfolio offers a variety of solid and liquid, reactive and non-reactive phenolic resins that provides the following property benefits:
Phenolic resins are often used in combination with other materials as they require heat-curing and are often very rigid. But those blending capabilities offer outstanding benefits for coating formulators, and the following resols and novolacs are a great foundation for industrial coating applications.
Resin Name | Application | Form | Solubility - Compatibility |
---|---|---|---|
FB-110 XB50 | Industrial Protective Coatings | Liquid | Esters, Ketones |
FB-190 | Industrial Protective Coatings | Solid | Alchohols, Esters, Aromatic Hydrocarbons, Ketones |
FB-209 BT57 | Metal Can Coatings | Liquid | Xylene, Toluene, Aromatic Solvent 150, n-Butyl acetate, Butyl glycol |
FB-210 B60 | Metal Can Coatings | Liquid | Xylene, Toluene, Aromatic Solvent 150, n-Butyl acetate, Butyl glycol |
FB-250 BX50 | Industrial Protective Coatings | Liquid | Methyl ethyl ketone, n-Butyl acetate, Ethanol, Isopropanol, Polyvinyl butyral, Polyvinyl acetate, Short oil alkyd resins |
SFC-112/65 | Metal Protective Coatings | Liquid | Aromatic hydrocarbons, Alcohols, Ketones, Esters |
SFC-112/72 | Internal Metal Protective Coatings | Liquid | Aromatic hydrocarbons, Alcohols, Ketones, Esters |
SFC-138B | Varnishes | Liquid | Aromatic hydrocarbons, Alcohols, Ketones, Esters |
SFP-121H | Adhesives | Flakes | Ethanol, Toluene, Acetone, Ethyl acetate, Cyclohexane, Methylene Chloride, Trichloroethylene, Methyl ethyl ketone |
Phenolic resin coatings performance can further be improved by incorporating the SI Group portfolio of stabilizer additives. These thermally stable, non-volatile additives enhance the stability of the formulation during processing and curing while improving the longevity and service life of the phenolic resin coating.
SI Group Antioxidants
Antioxidants, when introduced to phenolic resin coatings, protect against oxidative degradation of polymers from heat exposure. These additives provide increased durability and performance for the phenolic resin coatings.
Hindered phenolic radical scavengers that stabilize the phenolic resin coating over its service life.
Phosphite peroxide decomposers that stabilize the phenolic resin coating during processing and application.
Offer synergistic effect of both primary and secondary antioxidants with less raw material (RM) to handle, non-dusting forms, and lower variability.
• Primary antioxidant
• Chemistry: Hindered phenolic
• Ease of handling
• Great compatibility and low migration
• Non-discoloring and low viscosity
• Low freezing (< -20 ℃)
• Secondary antioxidant
• Chemistry: Phosphite
• Liquid form for ease of handling
• Regulatory compliant and nonylphenol-free
• Higher phosphorus content than alternatives
• Used as TNPP drop in
SI Group UV Stabilizers
Photochemical reactions caused by absorbed UV light will degrade the phenolic resin coating over its lifetime. The SI Group offers high-performance, regenerative UV light stabilizers that prevent photo-oxidation.
Absorb the light at a certain wavelength and dissipate into heat.
Scavenge radicals formed by interaction of light with the polymers.
Outstanding light absorber that prevents oxidative yellowing and degradation
Summary
Interior metal substrates and various industrial coating applications require a strong foundation that protects the product from chemical stains and provides improved adhesion to difficult substrates. The SI Group portfolio of phenolic resins and additives offers many solutions depending on your application and curing technology. Contact us today if you have questions about which grade or additive works best for your coating application.
PHONE 425.372.9328
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