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SELVOL 205 Polyvinyl Alcohol, PVOH688
SELVOL 205 is a low-viscosity, easy-to-dissolve polyvinyl alcohol, commonly used as a stiffener or sizing agent for textiles and paper. This off-white granular solid exhibits excellent thermal and light stability, making it suitable for various industrial applications. The viscosity of a 4% solution is between 5.2 and 6.2 cps.
Product Specifications
Appearance | Off-white granular solid |
Viscosity (4% solution) | 5.2 - 6.2 cps |
Refractive Index (nD at 20ºC) | 1.52 - 1.55 |
Specific Gravity | 1.27 - 1.31 |
Specific Heat (J/g K) | 1.65 - 1.67 |
Thermal Conductivity (W/m C) | ~2 |
Coefficient of Thermal Expansion (0-45ºC) | 7 - 10 x 10-5 / ºC |
Glass Transition Temperature | 58ºC |
Melting Point | 180ºC |
Electrical Resistivity (Ω cm x 107) | 3.1 - 3.8 |
Applications and Benefits:
- Textile stiffener
- Paper sizing agent
- Industrial applications requiring low-viscosity PVA
- Excellent thermal and light stability
Caution:
Handle according to standard safety procedures. Refer to the Safety Data Sheet for detailed information.
Polyvinyl Alcohol 62-99, SELVOL 165
Polyvinyl 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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