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BYK-358 N is a solution of a polyacrylate that can be used as an anti-cratering and leveling additive in all solvent-borne coatings.
BYK-358 N increases gloss and gives the coatings a long wave effect.
BYK-358 N only causes a minor reduction in surface tension and does not negatively influence the recoatability and intercoat adhesion.
CAS: 2493-02-9
MF: C7H4BrNO
MW: 198.02
EINECS: 219-662-9
Synonyms: p-Bromophenylcarbonimide;1-bromo-4-isocyanato-benzen;Benzene, 1-bromo-4-isocyanato-;Isocyanic acid p-bromophenyl ester;isocyanicacid,p-bromophenylester;p-Bromocarbanil;ISOCYANIC ACID 4-BROMOPHENYL ESTER;4-BROMOPHENYL ISOCYANATE
BYK-358 N is suited for high quality pigmented and non-pigmented industrial coatings.
BYK-358 N does not cause turbidity in clear coats or haze in pigmented systems.
This additive is thermally stable.
BYK-358 N is a solution of polyacrylate copolymer.
Acts as a leveling agent for solvent-borne and solvent-free systems.
Offers improved leveling and gloss. Reduces slightly surface tension.
Offers very good compatibility with most binders.
BYK-358 N does not causes turbidity in clears and hazing in pigmented systems.
Produces a long wave effect and avoids cratering.
Suitable for high-quality pigmented and non-pigmented industrial coatings.
Recommended dosage level of BYK-358 N is 0.1-1%.
BYK-358 N is a high-performance, polyacrylate-based surface additive engineered by BYK to drastically improve leveling and eliminate surface defects (such as craters, pinholes, and orange peel) in liquid coating systems.
Unlike silicone-based options, BYK-358 N operates by subtly modulating the surface tension without compromising the coat's physical integrity or aesthetic transparency.
BYK-358 N Chemical Properties
Melting point: 42-44 °C(lit.)
Boiling point: 158 °C14 mm Hg(lit.)
density: 1.6077 (rough estimate)
refractive index: 1.5500 (estimate)
Fp: 229 °F
storage temp.: Refrigerator (+4°C)
solubility diethyl ether: very slightly soluble
form: Crystalline Solid
color: White to light beige
Water Solubility: Sparingly soluble in water (0.40 g/L at 25°C).
Sensitive: Moisture Sensitive
Merck: 14,1430
BRN: 508203
InChI: 1S/C7H4BrNO/c8-6-1-3-7(4-2-6)9-5-10/h1-4H
InChIKey: CZQIJQFTRGDODI-UHFFFAOYSA-N
CAS DataBase Reference: 2493-02-9(CAS DataBase Reference)
EPA Substance Registry System: BYK-358 N (2493-02-9)
BYK-358 N is polyacrylate-based anti-cratering and leveling additive for all solvent-borne and solvent-free systems.
BYK-358 N provides a minor reduction of the surface tension and facilitates the acceptance of spray mist and dust.
BYK-358 N does not cause turbidity in non-pigmented systems or haze in pigmented systems.
Suitable for all ambient curing resin systems such as unsaturated polyester resins and epoxy resins.
Recommended dosage level is 0.1-0.5% based upon total formulation.
Complies with REACH.
Shelf life of BYK-358 N is 60 months.
Key Performance Benefits
No Haze or Turbidity: BYK-358 N provides perfect clarity, meaning it will not cause cloudiness in clear coats or a hazy finish in highly pigmented paint systems.
Preserved Adhesion: BYK-358 N causes only a minor reduction in surface tension, ensuring that intercoat adhesion and recoatability remain entirely unaffected.
Defect Suppression: BYK-358 N actively facilitates the acceptance of overspray mist and ambient dust, blending them seamlessly into the film to maximize gloss and create a uniform "long-wave" leveling effect.
Thermal Stability: BYK-358 N is highly resilient against thermal breakdown, making it safe for baking systems and high-temperature curing processes.
Uses
BYK-358 N is used in the synthesis of mixed bisamide derivative and monoamide product.
BYK-358 N was used in the synthesis of mixed bisamide derivative and monoamide product.
Preparation of bromophenylurea and urethan derivatives.
Form: Solution of a polyacrylate copolymer.
Recommended Dosage: Typically 0.1% to 0.5% calculated based upon the total formulation weight.
Incorporation: Can be introduced easily at any stage of the production process, including post-addition.
Shelf Life: Highly stable with a shelf life of up to 60 months when kept in its original sealed container.
