SIWO offers a range of waterborne polyurethane dispersions (PUDs) developed for packaging materials and water-based ink applications. These products feature small particle sizes and provide a range of performance properties, including excellent flexibility, elasticity, water resistance, abrasion resistance, and adhesion. Suitable grades are available for digital inkjet printing on corrugated paper and other substrates, as well as printing inks and coatings for various packaging and printing applications. Our product range helps manufacturers select suitable waterborne polyurethane solutions based on their specific printing and coating requirements.
The following are some of our most commonly used waterborne polyurethane dispersions (PUDs) for packaging materials and water-based inks, along with their key properties and recommended applications:
| Sales Grade | Isocyanate Polyol Type | Solid Content ( % ) | Mechanical Properties | NMP | Characteristics and Applications | ||
|---|---|---|---|---|---|---|---|
| Elongation ( % ) | Tensile Strength (Mpa) | Modulus (100%, Mpa) | |||||
| PUD-6992S | Aliphatic/ Polycarbonate | 32±1 | 500-600 | 32.2 | 4.8 | No | The resulting film exhibits medium hardness, excellent abrasion and acid resistance, and good alkali resistance. It also offers good resistance to water, alcohol, and various chemicals. This product is primarily used in metal surface treatments, glass fiber sizing agents, and waterborne wood sealer primers. |
| PUD-6991S | Aliphatic/ Polycarbonate | 32±1 | 750-850 | 46.8 | 3.9 | No | The emulsion features a small particle size and forms a medium-hardness film with excellent heat, water, solvent, abrasion, weather, and hydrolysis resistance. It is particularly suitable for digital inkjet printing and related applications. |
| PUD-6993S | Aliphatic/ Polycarbonate | 32±1 | 1000-1100 | 19.1 | 1.1 | No | The emulsion features a small particle size. Compared with PUD-6992S, it offers lower heat resistance and slightly higher surface energy while maintaining excellent water resistance, abrasion resistance, weatherability, and hydrolysis resistance. It is suitable for use as a topcoat in a wide range of applications. |
| PUD-6911S | Aliphatic/ Polycarbonate | 32±1 | 900-1000 | 7.0 | 0.6 | No | The emulsion features a small particle size and forms a clear, transparent film with a soft hand feel. It offers excellent adhesion to leather, outstanding dry and wet rub resistance, excellent flex resistance, and superior low-temperature resistance. |
| PUD-6900S | Aliphatic/ Polyester | 32±1 | 600 | 9.3 | 1.6 | No | The emulsion features a small particle size and forms a soft film with excellent extensibility and elasticity. It also provides strong water resistance, making it suitable for fabric printing inks and digital inkjet printing applications. |
| PUD-6805S | Aliphatic/ Polyester | 32±1 | 1100 | 47.4 | 2.2 | No | The emulsion features a small particle size and offers excellent adhesion to PVC and PET substrates. It is suitable for printing inks and digital inkjet printing applications. |
| PUD-2509S | Aliphatic/ Polyester | 30±1 | 900-1000 | 13.1 | 1.7 | No | The emulsion features a small particle size and forms a soft film with excellent resilience, alkali resistance, and water resistance. It also provides good low-temperature flex resistance, making it suitable for fabric printing coatings, leather applications, and digital inkjet printing. |
| PUD-201 | Aliphatic / Polyester- carbonate | 35±1 | 400-500 | 25.7 | 4.3 | No | Its surface drying is slow. It exhibits excellent adhesion, good water resistance. It is suitable for fabric coatings and printing inks. |
| PUD-1209 | Aliphatic / Polyester | 33±1 | 500-600 | 11.2 | 2.5 | No | Its film is transparent, and has medium hardness, excellent water resistance, excellent abrasion performance. It can be used in ink, water-based varnish, paper, etc. |
| PUD-919F | Aliphatic / Polyester- carbonate | 35±1 | 290 | 18.2 | 8.4 | No | It exhibits high hardness, high gloss, excellent water resistance, excellent abrasion resistance, excellent alkali resistance and hydrolysis resistance. It is mainly used in printing and packaging materials, etc. |
| PUD-E620 | Aliphatic / Polycarbonate | 40±1 | 800-900 | 53.5 | 3.8 | No | The dispersion can be diluted with 80% industrial alcohol, and has good storage stability. Its film has medium hardness, and exhibits excellent water resistance, excellent abrasion resistance, excellent light fastness and excellent hydrolysis resistance. It is suitable for leather, rubber, film substrates, etc. |
| PUD-2310 | Aliphatic / Polyester | 35±1 | 1100-1200 | 29.7 | 1.5 | Contains DEF | Its film is soft, and has excellent elasticity, adhesion on PVC, PET and other substrates. It can be diluted with 80–90% industrial alcohol and stored stably. It is suitable for hard-to-adhere leather, fabric coatings, as well as water-based ink for a variety of printed film materials. |
| PUD-2411 | Aliphatic / Polycarbonate | 32±1 | 550-650 | 46.8 | 9.6 | No | It has small particle size, high acid value, good ductility and elasticity, and good water resistance. It is suitable for use as printing ink. |
| PUD-1512LF | Aliphatic / Polyester | 35±1 | 1000 | 10.0 | 5.5 | Free | Its film is soft, elastic, and has excellent adhesion on substrates such as PVC, PET, OPP, BOPP, umbrella fabric, and nylon, etc. It is suitable for substrates that are difficult to adhere to. PUD-1512X2 is an enhanced version of PUD-1512LF. |
| PUD-ZY27 | Aliphatic / Polyether | 35±1 | Shore A Hardness（A）：83 | Contains DMM | The product has excellent temperature resistance, good stripping performance after adding stripping agent. It is suitable for heat transfer coatings in packaging printing and other industries. | ||
High-performance polyurethane dispersions backed by consistent quality and technical support
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