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We do not simply see our products as “chemicals,” but as “Solutions” that can bring values and solve the problems of our partners.

Our Application

We do not simply see our products as “chemicals,” but as “Solutions” that can bring values and solve the problems of our partners.

Why Choose Us

Quality is at the heart of everything we do.

What our clients Say

It is our code of conduct to be your responsible and reliable partner.

Bradley W. from Mexico
Bradley W. from Mexico
“There are channel partners who are just on the list, and then there are those who you truly can rely on & go to market with. Sunman is a true "partner" who understands our business and give us biggest support. That is why our business continues to grow with Sunman every year.”
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Gaurav R. from India
Gaurav R. from India
We have cooperated with Sunman company for some years, and they always think from the customer's side. They have professional teams to deal with different problems or requests. So you always know who you want to talk to.
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Piyaporn S. from Thailand
Piyaporn S. from Thailand
We are completely satisfied with the goods with high quality and great service that we get from Sunman. Look forward to working with them again in the future.
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Kobus M. from South Africa
Kobus M. from South Africa
This is my third time using raw materials from Sunman. I would strongly recommend this company. I had a major raw material shortage problem. But they always extend their service by helping us find alternate source of hard to find raw material. I call them for all my needs!
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Jeffrey H. from Indonesia
Jeffrey H. from Indonesia
I expressed my appreciation to your team this afternoon. They did a wonderful job. You were a pleasure to work with. I will definitely recommend your company to any potential customers that are looking for resins for printing ink. Again, thanks to you and your entire team.
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Ellyn J. from Brazil
Ellyn J. from Brazil
We appreciated you working with us to provide the most efficient solution for our coatings needs. You went beyond satisfactory work to excellence. Thank you!
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Latest News

It is our code of conduct to be your responsible and reliable partner

Solid acrylic resin in Heat sealing varnish/lacquer application
May 18, 2026 Solid acrylic resin in Heat sealing varnish/lacquer application
Acrylic resin is a copolymer of butyl methacrylate and methyl methacrylate that is soluble in chlorinated hydrocarbons, esters, glycol ethers, ketones, aromatic, and glycol ether acetates. It is compatible with a wide-ranging variety of other resins including maleinate resins, acrylics, nitrocellulose, vinyl, and chlorinated rubber. It is a binder for manufacturer of printing inks, primers, ceramic transfer lacquers, heat sealing lacquers for aluminum foils and adhesives, and ceramic and glass transfer printing lacquers. It has a molecular weight of 180,000 g/mol, moisture content of equal to or less than 1.0%, acid value of equal to or less than 1.0 mgKOH/g, and an inherent viscosity of 0.46. Performance Features · Excellent flexibility and adhesion, weather resistance · High gloss · Good pigment wetting, excellent compatibility with aluminum foil · Excellent chemical resistance and water resistance Applications · Heat seal lacquer for aluminum foil ·Ceramic transfer inks · Cigarette packaging inks · Alkyd resin modifier The quality is same as DEGALAN P24
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Properties and Applications of Polyvinyl Butyral (PVB)
Apr 17, 2026 Properties and Applications of Polyvinyl Butyral (PVB)
Polyvinyl Butyral (PVB) resin is a water-insoluble thermoplastic polymer known for its excellent binding and film-forming properties. It dissolves readily in a wide range of organic solvents and shows good compatibility with many other polymers. With superior elasticity and optical transparency, PVB suits diverse industrial uses. Both high- and low-viscosity grades are available, with glass transition temperatures tailored to specific applications. Stability can be further enhanced via cross-linking. As a result, PVB serves as a key binder in paints, primers, adhesives, metal powders, and ceramics, as well as an interlayer in laminated safety glass, making it indispensable across multiple industries. Field of Application: Wash Primer PVB-based "wash primer" is widely used on metal surfaces such as storage tanks, ships, aircraft, bridges, dam locks, and electronic appliances. Compared to conventional materials, it offers superior corrosion protection, better adhesion, faster drying, and easier application. Strong anchoring is achieved through a complex interaction of synthetic resin, pigments, phosphoric acid, and metal ions.   Foil Coatings Applying PVB solution onto metal foils (e.g., aluminum, brass, tin, lead, iron) improves mechanical strength, moisture resistance, and printability. Adhesion can be further enhanced by stoving at up to ~140°C.   Wood Paints PVB is widely used in wood sealers and topcoats, imparting toughness, flexibility, and impact resistance. Common blends include PVB with phenolic resins, shellac, or nitrocellulose. As a knot sealer, it prevents terpene and resin bleeding.   Leather Paints Combined with nitrocellulose and plasticizers, PVB provides excellent adhesion, high elongation, and crack prevention while maintaining leather flexibility.   Stoving Paints Blends of PVB with phenolic, melamine, or urea resins are ideal for stoving paints. Adding 5–25% PVB to phenolic resin transforms a brittle film into one with good flexibility, excellent leveling, a pinhole-free surface, and improved alkali resistance.   Powder Coatings PVB blended with epoxy resins improves edge covering and prevents pulverization.   Adhesives PVB-phenolic mixtures bond metal, glass, leather, wood, fabric, paper, and more. After solvent removal, surfaces are heated and pressed together. Typical curing: 160°C for 15–30 minutes.   Printed Circuit Board Adhesives A PVB-phenolic blend meets key PCB adhesive requirements: high peel strength, blister resistance, and good dielectric properties, ideal for bonding phenolic prepregs to copper foil.   Printing Inks PVB is used in gravure, letterpress, and flexographic inks, offering flexibility, strong adhesion, and toughness.   Hot-Melt Adhesives Fusing PVB with plasticizers and fluxing resins produces hot-melt adhesives that form tough, clear films with good adhesive strength.   Ceramic Binders In ceramic electronic components, PVB acts as a binder, providing ...
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SUNMAN Successfully Achieves ISO Management System Certification
Apr 01, 2026 SUNMAN Successfully Achieves ISO Management System Certification
ISO certification is a credential sought after by any mission-driven and forward-looking company. Following a rigorous audit of the international standardized quality management system, SUNMAN has now fully embraced rule-of-law and science-based management. This significantly improves our operational efficiency and product yield, while rapidly enhancing our economic and social performance. As a result, customer trust in us has been strengthened, which plays a key role in increasing our market share. Obtaining quality system certification serves as a green pass for international trade. For SUNMAN, as China's "One-stop Solution Provider for Ink and Coating", this is a critical step forward. We are dedicated to providing resins, additives, and professional technical services to the coating, printing industries. With this ISO certification, we see major opportunities to enhance our corporate image, internal management, operations, and international trade exchanges. Going forward, we will continue to provide you with more professional and higher-quality services.
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