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High-viscosity, fully hydrolyzed polyvinyl alcohol with excellent tensile strength.
Medium-viscosity, fully hydrolyzed polyvinyl alcohol with excellent film properties.
Polyvinyl Alcohol 62-99, SELVOL 165
PVOH Solution PreparationPolyvinyl Alcohol grade 62-99 (PVOH 62-99) is a high-viscosity, fully hydrolyzed polymer designed to produce films with exceptional tensile strength and tear resistance. It provides excellent resistance to oil, grease, petroleum hydrocarbons, and common solvents. This grade is equivalent to Selvol™ 165, Elvanol 70-62, PVOH 70-62, and Poval 60-98, as well as similar to Poval 56-98.
Product Specifications
| Viscosity (4% Solution) | 67 ± 5 cps |
| Hydrolysis | Fully hydrolyzed |
| Total Volatiles | 5% Max. |
| Total Organic Volatiles | 1% Max. |
| Methanol | 0.9% Max. |
| Ash | 1.2% Max. |
Applications and Benefits:
- Films with high tensile strength and tear resistance
- Resistance to oil, grease, and petroleum hydrocarbons
- Excellent barrier against common solvents
- Suitable for industrial coatings and specialty films
- Ideal for high-strength adhesive formulations
Caution:
Handle in accordance with recommended safety procedures. Refer to the Safety Data Sheet for detailed handling and storage guidelines.
Polyvinyl Alcohol 30-99, Elvanol 71-30
PVOH Solution PreparationPVOH 30-99 (Elvanol® 71-30) is a medium-viscosity, fully hydrolyzed polyvinyl alcohol designed for applications requiring high tensile strength, tear resistance, and excellent adhesion to hydrophilic surfaces. This white granular polymer is soluble in hot water and forms transparent films upon evaporation. Insoluble in cold water and common organic solvents, PVOH 30-99 is widely used in the paper, textile, ceramic, and adhesive industries. Key applications include sizing for paper and textiles, ceramic fiber binder, and wallpaper glue. PVOH 30-99 offers excellent film-forming characteristics with superior resistance to tearing and high strength, making it a versatile polymer for coatings, adhesives, and emulsions. It is often applied using brushes, rollers, or spray equipment.
Product Specifications
| Viscosity (4% Solution) | 67 ± 5 cps |
| Hydrolysis Level | Fully hydrolyzed (99%) |
| Average Polymerization | 7150 ± 100 |
| Alcoholysis (mol/mol) | 28–32% |
| Solubility | Soluble in hot water |
Applications and Benefits:
- Binder for paper and textile sizing
- Ceramic fiber binder
- Transparent, high-strength film formation
- Wallpaper glue
- Adhesive and emulsion stabilizer
- Hydrophilic surface adhesion
Caution:
Handle with care according to safety guidelines. Refer to the Safety Data Sheet for detailed handling and storage information.
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