Isocryl EP-575GA

Isocryl® EP-575GA is a glycidyl-functional acrylic copolymer designed for use as a hardener capable of producing matte exterior-durable polyester powder coatings. Compared to previous generations of acrylic matting hardeners (Isocryl EP-570GA / Isocryl EP-570G) coatings utilizing Isocryl EP-575GA as the hardener exhibit excellent impact and chemical resistance. Additional benefits include smooth cured film appearance and low contamination characteristics.

Isocryl EP-575GA is designed to achieve <10 gloss in pigmented and unpigmented coatings with a variety of standard and super-durable resins in a single extrusion system. Best results for chemical and mechanical properties are achieved by formulating a polyester resin with acid value 35 and Isocryl EP-575GA at an 80:20 ratio with a secondary crosslinker (HAA or TGIC) at 1% on total formulation. It is not recommended to use the secondary crosslinker at levels higher than 1.5% due to gloss variation during processing and application. Resins with an acid value below 30 are also not recommended. Formulations with Isocryl EP- 575GA are stable to multiple extrusions and have minimal gloss change with different cure temperatures, film thickness variations, or part mass. A portion of Isocryl EP-575GA can be replaced with Isocryl EP- 570GA to optimize mar and scratch resistance.

It is recommended that formulated powders be tested for both physical and chemical advancement when stored at elevated temperatures. Recommended storage temperature is below 30°C.

Isocryl® EP-575GA is a glycidyl-functional acrylic copolymer designed for use as a hardener capable of producing matte exterior-durable polyester powder coatings. Compared to previous generations of acrylic matting hardeners (Isocryl EP-570GA / Isocryl EP-570G) coatings utilizing Isocryl EP-575GA as the hardener exhibit excellent impact and chemical resistance. Additional benefits include smooth cured film appearance and low contamination characteristics.

Isocryl EP-575GA is designed to achieve <10 gloss in pigmented and unpigmented coatings with a variety of standard and super-durable resins in a single extrusion system. Best results for chemical and mechanical properties are achieved by formulating a polyester resin with acid value 35 and Isocryl EP-575GA at an 80:20 ratio with a secondary crosslinker (HAA or TGIC) at 1% on total formulation. It is not recommended to use the secondary crosslinker at levels higher than 1.5% due to gloss variation during processing and application. Resins with an acid value below 30 are also not recommended. Formulations with Isocryl EP- 575GA are stable to multiple extrusions and have minimal gloss change with different cure temperatures, film thickness variations, or part mass. A portion of Isocryl EP-575GA can be replaced with Isocryl EP- 570GA to optimize mar and scratch resistance.

It is recommended that formulated powders be tested for both physical and chemical advancement when stored at elevated temperatures. Recommended storage temperature is below 30°C.