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High-viscosity, fully hydrolyzed polyvinyl alcohol with excellent tensile strength.
Polyvinyl Alcohol Grade 22-88, PVA 217, Elvanol 52-22
PVOH Solution PreparationPolyvinyl Alcohol grade 22-88 is a water-soluble polymer produced by the alcoholysis of polyvinyl acetate. It has a viscosity of approximately 22 cps in a 4% solution. This polymer is widely used as a binder in sizes due to its excellent penetration and adhesion properties on various fibrous materials. Its remarkable film characteristics include high cohesion, toughness, low electrostatic charging, and redissolving capacity in water. PVOH 22-88 offers excellent barrier properties, repelling oil, grease, and fat due to its insolubility in most organic solvents. It enhances mechanical strength when applied as a film on paper or paperboard, making it an ideal surface sizing agent. It also serves as an outstanding carrier for optical brightening agents and pigments. This grade can replace Elvanol® 52-22, Poval 26-88, Selvol 523, and PVA-217 with comparable viscosity.
Product Specifications
| Viscosity (4% Solution) | 22 cps |
| Solubility | Water-soluble |
| Replacement for | Elvanol® 52-22, Poval 26-88, Selvol 523, PVA-217 |
| Applications | Binder, film formation, surface sizing agent, pigment carrier |
Applications and Benefits:
- Binder for fibrous materials with excellent adhesion
- Film formation with high cohesion and toughness
- Barrier to grease, oil, and fat
- Surface sizing agent for paper and paperboard
- Carrier for optical brightening agents and pigments
Caution:
Handle with care and follow appropriate safety guidelines. Refer to the Safety Data Sheet for detailed information.
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.
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