Crosslinking / Coupling / Curing Agents for Coatings and Inks

Borchi® OXY-Coat 1101 by Borchers (Milliken) is a VOC- and cobalt-free curing agent and metal-based catalyst ideal for water-based alkyd coatings. It can improve drying activity, color performance, gloss and haze compared to cobalt-based driers. It is based on a unique, patented, highly active iron complex. It is suitable for all coatings with binders that dry by oxidation.

• It provides brighter whites and lower yellow tones.
• It offers improved adhesion in direct-to-metal applications.
• It can be used in coatings for adverse weather conditions.
• Applications include wood-, industrial-, and architectural coatings, as well as printing inks.
• Borchi® OXY-Coat 1101 is APEO-free and complies with Proposition 65, REACH, environmental labels "Blue Angel" (RAL-UZ 12a) and "EU Ecolabel"(Regulation (EC) No. 66/2010, Commission Decision 2014/312/EU).
• Recommended dosage level is 0.25-2%.

WANNATE® HT-400 by Wanhua Chemical is a low-viscosity reactive thinner and hardener component for aqueous- and lightfast two-component polyurethane coatings. In moisture-curing one-component polyurethane systems, it can be used as single binder or combined with other polyisocyanate mixture.

• It can be combined with WANNATE® HT-100, HT-600, and IT-170B.
• WANNATE® HT-400 shows compatibility with aliphatic- and aromatic polyisocyanates, polyester polyols and polyacrylates such as hydroxy polyacrylate.

WANNATE® HTBL-472M by Wanhua Chemical acts as a hardener. It is a caprolactam-blocked aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI), dissolved in 28% propylene glycol monomethyl ether acetate.

• The stoving temperature can be reduced by the addition of a catalyst, e.g. dibutyltin dilaurate (DBTL), without reducing the storage stability.
• It aids in improving the flexibility and adhesion in conventional stoving systems.
• WANNATE® HTBL-472M is used in colorfast and weather-stable, one-component polyurethane coatings.

EPOCROS™ WS-300 by Nippon Shokubai is a VOC-free adhesion promoter and waterborne crosslinking agent based on acrylic, high oxazoline functionalized reactive copolymer. The new crosslinking technology enhances the reactivity between oxazoline groups and carboxy groups through a heating and mixing process involving EPOCROS™ WS and a carboxy group-containing emulsion with a specific neutralization rate.

• It offers lower curing temperature, excellent storage stability, no peeling and long pot life for one packaging.
• It provides film properties, low toxicity, fast drying and improved water- & heat resistance.
• It shows excellent adhesion to polyethylene terephthalate (PET), oriented polypropylene (OPP) and polyvinyl chloride (PVC).
• It exhibits controllable appearance by glass transition temperature adjustment and crosslinking reaction at low temperature (80-120°C) with no by-product.
• It offers high reactivity and performance expression with even small addition.
• EPOCROS™ WS-300 is designed for coatings (metals, films, paper, plastics, leather), primer (film, plastics, building materials, automobiles, PVB inks), paints, inks and pigment printing.
• It is registered with CSCA(Japan) and TSCA(USA) regulations.

EPOCROS™ WS-700 by Nippon Shokubai is a VOC-free adhesion promoter and a waterborne crosslinker based on acrylic, high oxazoline functionalized reactive copolymer. The new crosslinking technology enhances the reactivity between oxazoline groups and carboxy groups through a heating and mixing process involving EPOCROS™ WS and a carboxy group-containing emulsion with a specific neutralization rate.

• It offers lower curing temperature, excellent storage stability, no peeling and long pot life for one packaging.
• It provides film properties, low toxicity, fast drying and improved water- & heat resistance.
• EPOCROS™ WS-700 allows crosslinking reaction at low temperature (80-120°C) and without any by-product.
• It exhibits high reactivity and performance expression with even small addition.
• It offers excellent adhesion to polyethylene terephthalate (PET), oriented polypropylene (OPP) and polyvinyl chloride (PVC).
• Recommended for coatings (metals, films, paper, plastics, leather), primer (film, plastics, building materials, automobiles, PVB inks), paints, inks and pigment printing.
• It is registered with CSCA (Japan), TSCA (USA), REACH EU and IECSC (China) regulations.

Borchi® OXY-Coat 1310 by Borchers (Milliken) is a metal-based, cobalt-free, curing additive and catalyst. It is based on a unique, patented, highly active iron complex. It improves drying activity, color performance, gloss and haze compared to cobalt-based driers.

• It is designed for thixotropic solvent-based coatings with resins that dry by oxidation including alkyds, vegetable oils, epoxy esters and polybutadiene.
• It provides improved stain- and chemical resistance, lower gardner color numbers and faster dry times and can prevent wrinkles at higher film builds.
• It has the ability to be used in adverse conditions.
• It is suitable for use in solvent-based architectural, wood, and industrial coating applications, as well as printing inks.
• The recommended dosage level of Borchi® OXY-Coat 1310 is 0.5-3%.
• It complies with EU-REACH, ECL, EINECS, TSCA and NECI.

EPOCROS™ WS-500 by Nippon Shokubai acts as a water soluble crosslinker and adhesion promoter. It is a standard acrylic-based oxazoline functionalized reactive copolymer. The new crosslinking technology enhances the reactivity between oxazoline groups and carboxy groups through a heating and mixing process involving EPOCROS™ WS and a carboxy group-containing emulsion with a specific neutralization rate.

• It offers lower curing temperature, excellent storage stability, no peeling and long pot life for one packaging.
• It offers high reactivity and performance expression with even small addition.
• It exhibits crosslinking reaction at low temperature (80-120°C) with no by-product.
• It provides film properties, low toxicity, fast drying and improved water- & heat resistance.
• It shows excellent adhesion to polyethylene terephthalate (PET), oriented polypropylene (OPP) and polyvinyl chloride (PVC).
• EPOCROS™ WS-500 is used in coatings (metals, films, paper, plastics, leather), primer (film, plastics, building materials, automobiles, PVB inks), paints, inks and pigment printing.
• It is registered with CSCA (Japan), TSCA (USA), REACH EU and IECSC (China) regulations.

CYMEL® 303 LF by allnex is a highly methylated, monomeric melamine crosslinker supplied in liquid form. Its high extent of alkylation and low tendency to self-condense makes this product a highly effective crosslinking agent for a broad range of applications such as can, container, automotive and general industrial coatings. While CYMEL® 303 LF is insoluble in water, it shows excellent compatibility with water-soluble backbone polymers and provides very good stability in amine-stabilized waterborne formulations. It shows excellent compatibility with water-soluble backbone polymers and provides very good stability in amine-stabilized water-borne formulations. Recommended for high solids & water-borne-coatings and inks. The shelf life of this resin is 1800 days.

WANNATE® IT-170MX by Wanhua Chemical acts as a hardener component for lightfast two-component polyurethane coatings. It provides excellent weather- and chemical resistance, very good gloss- and color retention, and outstanding mechanical properties.

• Due to its high drying speed, it works as an assistant resin in alkyd spray coating systems.
• It is suitable for automotive OEM-, refinishing and industrial coatings.
• It is normally mixed with WANNATE® HT series based on its high hardness.
• It offers excellent dilutional stability, low reactivity and prolonged pot life.
• WANNATE® IT-170MX can be mixed with aliphatic polyisocyanates such as WANNATE® HT-100, HB-100, polyester polyols, aromatic polyisocyanates, polyacrylates and alkyd resins.

WANNATE® IT-170S by Wanhua Chemical acts as a hardener component for lightfast two-component polyurethane coatings. It exhibits high weather- and chemical resistance, very good gloss- and color retention, and outstanding mechanical properties.

• It is normally mixed with WANNATE® HT series based on its high hardness.
• It is suitable for automotive OEM-, refinishing- and industrial coatings.
• Due to it high drying speed, it works as an assistant resin in alkyd spray coating systems.
• It offers excellent dilutional stability, low reactivity and prolonged pot life.
• WANNATE® IT-170S can be mixed with aliphatic polyisocyanates such as WANNATE® HT-100, HB-100, polyester polyols, aromatic polyisocyanates, polyacrylates and alkyd resins.