NMP-free water-based polyimide varnish (developed in-house by MP Gokyo F&C)!
Completely NMP-free! A water-based polyimide varnish with excellent handling properties, high heat resistance, and chemical resistance, featuring low viscosity. Documentation is available, and free samples are being provided!
Polyimide varnish has characteristics of high heat resistance and chemical resistance, making it suitable for a wide range of fields and applications, including high-temperature sliding parts and related components for automobiles and aircraft, heat-resistant coatings, special adhesives, and wire insulation. It is a resin that will continue to be used by leveraging these features in the future. However, the current mainstream products are "NMP solution" or "a mixed solution of NMP and water." *NMP = N-methyl-2-pyrrolidone In recent years, "NMP" has raised concerns about its "toxicity," and it has been listed as a restricted substance under the "REACH regulations" in Europe, and it is expected to have an impact in Japan as well. NMP-free water-based polyimide varnish can contribute to "avoiding the use restrictions of NMP" and "reducing VOCs for environmental improvement." This product is expected to further enhance performance and reduce environmental impact in fields requiring high heat resistance and chemical resistance. It has excellent handling properties due to its stability at room temperature and low viscosity, comparable to general functional coatings. It is also believed to enable applications in processing methods that traditional polyimide varnishes could not be applied to. *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Features】 Conventional polyamic acid-based polyimide varnishes have very high viscosity, making them difficult to handle and requiring refrigeration due to low storage stability. In contrast, this developed product addresses these drawbacks, offering excellent handling properties with storage stability at room temperature and reduced viscosity comparable to general functional coatings. ■ Environmentally friendly water-based polyimide varnish ■ High heat resistance and chemical resistance ■ Can be stored at room temperature ■ Viscosity suitable for coating ■ Mixing proposals with other resins are possible ■ Improvement of working environment and global environmental enhancement *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Applications】 ■ Wire insulation varnish ■ Sliding parts and related components for automobiles/aircraft that require high-temperature resistance ■ Adhesives ■ Batteries ■ Heat-resistant coatings ■ Prepreg products *For more details, please refer to the PDF document or feel free to contact us.
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"Data on the adhesion strength of environmentally friendly water-based polyimide varnish" Adhesion between polyimide film and copper foil is possible using NMP completely free water-based polyimide varnish! Adhesion strength data and processing conditions are included!
Our water-based polyimide varnish utilizes polyamic acid generated by regenerating unnecessary polyimide film during the processing of polyimide film through a unique chemical treatment, making it a "NMP completely free water-based polyimide varnish." This product can bond polyimide films and copper foils just like general-purpose polyimide varnishes. It is also applicable to uses that could not be processed due to the influence of "NMP" solvents. This document introduces adhesive strength and processing conditions. 【Representative Product】 NMP-free water-based polyimide varnish 【Features】 ■ Environmentally friendly water-based polyimide varnish ■ High heat resistance and chemical resistance ■ Can be stored at room temperature ■ Viscosity suitable for coating ■ Mixing proposals with other resins are possible ■ Improvement of working environment and global environmental improvement 【Applications】 ■ Wire coating varnish ■ Improvement of heat resistance in paints, conductive inks, and coatings ■ High-temperature resistant sliding parts and materials for automobiles/aircraft, etc. ■ Adhesives ■ Batteries ■ Heat-resistant paints ■ Prepreg products *For more details, please refer to the PDF document or feel free to contact us.
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"New Product!" Improved Flexibility: Development of a New Grade of Water-Based Polyimide Varnish (SC-2002) A new grade of water-based polyimide with improved flexibility has been developed! It maintains the same performance as before while enhancing adhesion to various substrates and allowing for coating with a thicker film than before!
Polyimide varnish has characteristics of high heat resistance and chemical resistance, making it suitable for a wide range of fields and applications, including high-temperature sliding parts and related components for automobiles and aircraft, heat-resistant coatings, special adhesives, and wire insulation. This resin will continue to be used in the future, leveraging these features. Our company utilizes polyamic acid generated by regenerating polyimide film, which becomes unnecessary during the processing of polyimide film, through a unique chemical treatment to create an "NMP completely free aqueous solution." This product, when applied to a substrate and dried and cured, forms a polyimide resin coating with an imidization rate of over 90%. We are pleased to introduce a new grade of water-based polyimide varnish with improved flexibility. Compared to conventional products, it exhibits better adhesion to various substrates and is less prone to cracking. This document presents the coating properties of the new grade product. [Representative Product] Water-based Polyimide Varnish (SC-2002) [Performance Features] High heat resistance and chemical resistance materials.
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Remove NMP! Information materials on water-based polyimide varnish are now available.
Completely NMP-free, water-based polyimide varnish with excellent handling properties. Polyimide has characteristics of high heat resistance and chemical resistance, making it suitable for a wide range of fields and applications, such as high-temperature sliding parts and related components in automobiles, heat-resistant coatings, special adhesives, and wire insulation. It will continue to be used as a resin that leverages these features. However, current products mainly consist of "NMP solutions" or "mixtures of NMP and water." *NMP = N-methyl-2-pyrrolidone. Our water-based polyimide varnish is an "NMP completely free aqueous solution" that utilizes polyamic acid generated by recycling polyimide film that becomes unnecessary during the manufacturing of polyimide films through our unique chemical treatment.
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In-house developed product "NMP-free! Water-based Polyimide Varnish" now available for sale!
The "polyimide varnish," which is commonly used in the industrial chemicals field, primarily consists of "NMP solution of polyamic acid," a precursor of polyimide resin, or "thermoplastic polyimide NMP solution." However, this developed product is an NMP completely free, water-based polyimide varnish that utilizes polyamic acid generated by chemically processing polyimide film. (Note: NMP: N-methyl-2-pyrrolidone) After being applied to a substrate, this developed product forms a polyimide resin coating with an imidization rate of over 90% upon drying and curing. Conventional polyamic acid-based polyimide varnishes have very high viscosity, making them difficult to handle and requiring refrigeration due to low storage stability. In contrast, this developed product addresses these disadvantages, offering excellent handling properties with storage stability at room temperature and low viscosity comparable to general functional coatings. *For more details, please refer to the PDF document or feel free to contact us.*
