Reactive Diluents for Coatings and Inks

Isobornyl acrylate (IBOA) by allnex is a low viscosity, monofunctional, UV/ EB energy curable reactive diluent. It polymerizes when exposed to sources of free radicals. Its bicyclic structure gives rise to polymers of increased glass transition temperature, while its monofunctionality minimizes crosslinking. Provides good hardness and resiliency combined with flexibility and impact resistance. It is characterized by a wide range of compatibility with oligomers and low color. Offers thermal resistance, low shrinkage and improved water resistance. It maintains high elongation in urethane acrylates. IBOA is used in screen inks and coating applications.

HDDA by allnex is a difunctional reactive diluent that is commonly used as a component of ultraviolet light (UV) and electron beam (EB) curable applications. It is characterized by very low viscosity, low color and efficient reduction of oligomer viscosity.

• It offers good cure response at low cross-link density.
• It is particularly useful in exterior durable coatings & inks where improved elasticity, weathering and adhesion are desired in combination with excellent water resistance.
• HDDA offers improved adhesion to plastics, metal and glass.

OTA-480 by allnex is a low viscosity reactive diluent based on a trifunctional oligoacrylate. It exhibits light color, low irritancy and good flexibility. Its high functionality contributes to good reactivity and hardness.

• It offers high cross-link density, excellent reduction of oligomer viscosity and fast cure response.
• It produces a tough finish on a variety of substrates including plastics, paper, or other coated or printed substrates.
• OTA-480 is designed for lithographic ink binders, UV/ electron beam (EB) cured inks, varnishes and coating systems.
• It has a shelf life of 2 years.

DPGDA by allnex is a difunctional reactive diluent that polymerizes when exposed to sources of free radicals. It is particularly useful in coatings and inks where improved flexibility and adhesion are desired in combination with good moisture resistance.

• It exhibits low viscosity, good diluency and light color.
• DPGDA is recommended for UV/EB cured wood coatings.
• It is also used in coatings and inks for flexible and rigid plastics.

TPGDA (Tripropylene Glycol Diacrylate) by allnex is a difunctional reactive diluent with a branched alkyl polyether backbone. Polymerization occurs when TPGDA (Tripropylene Glycol Diacrylate) is exposed to sources of free radicals.

• It possesses low viscosity, good diluency of acrylate oligomers and hydrophobicity.
• The formulated products are characterized by good flexibility, improved water resistance and good cure speed without brittleness.
• TPGDA (Tripropylene Glycol Diacrylate) is widely used as a primary diluent in the formulation of ultraviolet light (UV) and electron beam (EB) energy curable coatings and inks.

Epotec® RD 114 LE distributed by DKSH is a diglycidyl ether of neopentyl glycol, used as a reactive diluent for high viscosity epoxy resins. It is compatible in all concentrations with all classes of epoxy resins.

• Performance properties of system containing Epotec® RD 114 LE are maintained at higher level than is possible with mono-functional reactive diluents.
• It is used in paints and coatings.
• It has a shelf life of 2 years.
• It is available in Canada.

Epotec® RD 108G distributed by DKSH is mono-glycidyl ether of C12-C14 fatty alcohol, primarily used as a reactive diluent for high viscosity epoxy resins. It is compatible in all concentrations with epoxy resin and those resins blends can be cured with variety of epoxy hardeners.

• As with other mono-functional aliphatic reactive diluents, increasing the level of Epotec® RD 108G in the epoxy resin blend will extend pot life and alter the properties of the cured resin.
• Since Epotec® RD 108G is aliphatic, it offers the added benefit of superior non-yellowing characteristics compared to aromatic mono-functional reactive diluents.
• Additionally, it demonstrates excellent wetting properties and has a low odor.
• It is used in metal and concrete primers and coatings.
• It has a shelf life of 2 years.
• It is available in Canada.

Epotec® RD 105 distributed by DKSH is mono-functional reactive diluent based on o-cresol. It is suitable for reducing viscosity of conventional epoxy resins. The blends so prepared can be reacted with all the common curing agents employed for curing epoxy resin.

• It is known for its excellent retention of mechanical and chemical resistance properties relative to other monoepoxide diluents.
• Also it does not influence the reactivity of the blends as it happens in the case with aliphatic monofunctional reactive diluents.
• It is used in paints and coatings.
• It has a shelf life of 2 years.
• Epotec® RD 105 is available in Canada.

TMPEOTA (Trimethylolpropane Ethoxy Triacrylate) by allnex is a reactive diluent commonly used in ultraviolet light (UV) and electron beam (EB) energy curable coatings and inks. It can be used to impart cross-linking to energy curable coatings and inks while maintaining a degree of flexibility and toughness. Of the common triacrylate diluents used in energy curable formulations, TMPEOTA (Trimethylolpropane Ethoxy Triacrylate) exhibits the highest reactivity and the greatest viscosity reduction of oligomers. Recommended for overprint varnishes and electronic applications such as photoresists.

EBECRYL® 140 by allnex is ditrimethylolpropane tetraacrylate, a reactive diluent. It exhibits good cure response, light color and low irritancy. It is compatible with a wide range of acrylated resins used in UV/EB curing applications. It provides substantial improvements in flexibility, hardness, and chemical-, scratch-, and abrasion- resistance. Effective levels of EBECRYL® 140 typically range from 10% to 30%, depending on the application. In lithographic inks and varnishes, it is quite effective in adjusting viscosity. The high functionality provides increased crosslink density in coatings, which improves gloss, hardness, and durability.