Selvol™ Polyvinyl Alcohol
Manufacturers commonly use Selvol polyvinyl alcohol (PVOH) for adhesives. However, the industry and agriculture sectors also use it in emulsion polymerization, films and packaging, as well as in oil field cementing, paper, textiles, ceramics and seed coatings.
As a top PVOH supplier, SEKISUI continually develops new applications for and products featuring PVOH.
Manufacturers make Selvol PVOH from vinyl acetate monomer (VAM) via a multistep process. They polymerize VAM into polyvinyl acetate and then convert it to PVOH.
Selvol PVOH grades offer incredible versatility in one core product. In fact, it’s the most versatile PVOH product we offer. The key to working ideally with Selvol PVOH is finding the grade that suits your needs.
Each Selvol PVOH grade varies in molecular weight and degree of hydrolysis.
We generally express molecular weight in terms of solution viscosity. First, we classify the viscosities as ultra low, low, medium and high. We commonly denote the degree of hydrolysis as super, fully, intermediately and partially hydrolyzed. Additionally, we offer a wide range of standard grades.
In addition to SEKISUI Specialty Chemicals’ standard product line, we provide multiple specialty grades. These include polymerization, fine particle size and tackified PVOHs:
Selvol PVOHs 805, 823 and 840 are improved versions of our standard polymerization grades (Selvol PVOHs 205, 523 and 540, respectively). These products offer many advantages in emulsion polymerization applications, including better water solubility and lower foaming.
Selvol PVOH S-grades are similar to our standard grades. However, they have a fine particle size so that more than 99% of the product passes through a U.S.S. 80-mesh screen. These grades are available commercially as Selvol PVOHs 203S, 205S, 523S and 540S.
Tackified Selvol PVOHs are products of the controlled boration of super-hydrolyzed and fully hydrolyzed grades. These borated alcohols yield viscous, aqueous solutions. These solutions also have a tailored degree of tack and significantly reduce penetration when applied to surfaces such as paper.
At SEKISUI Specialty Chemicals, we provide premade solutions of some of our standard grades. A Selvol PVOH solution eliminates the dissolution step and creates distinct advantages:
Ready-to-use, improved solution consistency
Lower energy costs
Lower processing costs (no cooking required)
Selvol PVOH grades have unique characteristics that make them useful in an array of applications.
By choosing from the many available Selvol PVOH grades, you can obtain the performance properties necessary for your specific applications. You can expect properties like these:
Water solubility
Abrasion resistance
Tensile strength
Adhesive and bonding properties
Grease or oil resistance
Film-forming qualities
Selvol PVOH combines high tensile strength with ease of film formation. Additionally, Selvol PVOH resins show outstanding adhesive and bonding characteristics. Partially hydrolyzed grades adhere better to hydrophobic surfaces.
Furthermore, the degree of hydrolysis affects both the resin’s and the film’s water sensitivity. Water resistance increases as hydrolysis increases. You should use our super-hydrolyzed grades when you need maximum water resistance and humidity resistance. Greases, petroleum hydrocarbons and animal or vegetable oils generally don’t affect Selvol PVOH resins. Resistance to organic solvents also increases alongside the degree of hydrolysis. When necessary, you can plasticize Selvol PVOH film with glycerol or lower molecular weight glycols. These substances usuallyact as humectants to hold water in the film.
| Item | Hydrolysis, mole% | 4% Solution Viscosity, cP | Total Volatiles, wt% | Total Organic Volatiles, wt% | Methanol, wt% | Ash - ISE, wt% | 4% Solution pH | |
|---|---|---|---|---|---|---|---|---|
| Super Hydrolyzed | Selvol™ Polyvinyl Alcohol 125 | 99.65 +/- 0.35 | 30.00 +/- 2.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.50 +/- 1.00 |
| Selvol™ Polyvinyl Alcohol 165 | 99.65 +/- 0.35 | 67.00 +/- 5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.50 +/- 1.00 | |
| Polymerization | Selvol™ Polyvinyl Alcohol 805 | 88.00 +/- 1.00 | 5.70 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 |
| Selvol™ Polyvinyl Alcohol 818 | 88.00 +/- 1.00 | 19.00 +/- 2.00 | ≤5.00 | ≤1.00 | ≤0.90 | 0.45+/- 0.15 | 5.25 +/- 1.25 | |
| Selvol™ Polyvinyl Alcohol 823 | 88.00 +/- 1.00 | 25.00 +/- 2.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.50 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 830 | 88.00 +/- 1.00 | 32.00 +/- 3.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 840 | 88.00 +/- 1.00 | 50.00 +/- 5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.50 | 5.50 +/- 1.00 | |
| Fully Hydrolyzed | Selvol™ Polyvinyl Alcohol 103 | 98.40 +/- 0.40 | 4.00 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.00 +/- 1.00 |
| Selvol™ Polyvinyl Alcohol 107 | 98.40 +/- 0.40 | 6.05 +/- 0.55 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.00 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 310 | 98.40 +/- 0.40 | 10.00 +/-1.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.00 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 325 | 98.40 +/- 0.40 | 30.00 +/-2.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.00 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 325LA | 98.4 +/- 0.4 | 30.0 +/- 1.5 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.60 | 6.0 +/- 1.0 | |
| Selvol™ Polyvinyl Alcohol 350 | 98.40 +/- 0.40 | 67.00 +/-5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.00 +/- 1.00 | |
| Intermediate Hydrolyzed | Selvol™ Polyvinyl Alcohol 418 | 92.00 +/- 1.00 | 17.00 +/- 2.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.90 | 5.75 +/- 1.25 |
| Selvol™ Polyvinyl Alcohol 425 | 96.00 +/- 0.50 | 29.00 +/- 2.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 443 | 93.00 +/- 1.00 | 58.00 +/- 5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.60 | 5.50 +/- 1.00 | |
| Partially Hydrolyzed | Selvol™ Polyvinyl Alcohol 203 | 88.00 +/- 1.00 | 4.00 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 |
| Selvol™ Polyvinyl Alcohol 205 | 88.00 +/- 1.00 | 5.70 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 502 | 88.00 +/- 1.00 | 3.35 +/- 0.35 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 504 | 88.00 +/- 1.00 | 4.50 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 508 | 88.00 +/- 1.00 | 8.50 +/- 1.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 513 | 87.50 +/- 1.50 | 14.00 +/- 1.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 518 | 88.00 +/- 1.00 | 19.00 +/- 1.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 523 | 88.00 +/- 1.00 | 25.00 +/- 2.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.50 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 540 | 88.00 +/- 1.00 | 50.00 +/- 5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.50 | 5.50 +/- 1.00 | |
| Textile Products | Selvol™ Polyvinyl Alcohol WS-53NF | 88.00 +/- 2.00 | 23.75 +/- 5.25 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 5.50 +/- 1.50 |
| Selvol™ Polyvinyl Alcohol WS-724 | 93.25 +/- 2.25 | 18.50 +/- 5.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 5.50 +/- 1.50 |
| Item | Hydrolysis, mole% | Solution Viscosity, cP | Solution Solids, wt% | Total Organic Volatiles, wt% | Methanol, wt% | Ash - ISE, wt% | Solution pH | |
|---|---|---|---|---|---|---|---|---|
| Pre-Dissolved Solutions | Selvol™ Polyvinyl Alcohol 08-125 Solution | ≥99.30 | 700.00 +/- 600.00 | ≤7.50 +/- 0.50 | ≤1.00 | ≤0.90 | ≤1.20 | 6.50 +/- 1.00 |
| Selvol™ Polyvinyl Alcohol 09-325 Solution | ≥98.40 +/- 0.40 | 750.00 +/- 550.00 | ≤8.50 +/- 0.50 | ≤1.00 | ≤0.90 | ≤1.20 | 6.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 09-523 Solution | ≥88.00 +/- 1.00 | 775.00 +/- 525.00 | ≤9.00 +/- 0.50 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 15-103 Solution | 98.40 +/- 0.40 | 275.00 +/- 225.00 | ≤15.00 +/- 0.50 | ≤1.00 | ≤0.90 | ≤1.20 | 6.00 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 21-205 Solution | ≥88.00 +/- 1.00 | 1,050.00 +/- 250.00 | ≤21.00 +/- 1.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | |
| Selvol™ Polyvinyl Alcohol 24-203 Solution | ≥88.00 +/- 1.00 | 775.00 +/- 525.00 | ≤24.00 +/- 1.00 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 |
| Item | Hydrolysis, mole % | Solution Viscosity, cP | Solution Solids, wt% | Total Organic Volatiles, wt% | Methanol, wt% | Ash - ISE, wt% | 4% Solution pH3 | |
|---|---|---|---|---|---|---|---|---|
| Pre-Dissolved Solutions | Selvol™ 09-425 Polyvinyl Alcohol Solution | 96.00 +/- 0.50 | 750.00 +/- 550.00 | 8.50 +/- 0.50 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 |
| Item | Hydrolysis, mole% | 4% Solution Viscosity, cP1 | Total Volatiles, wt%2 | Total Organic Volatiles, wt% | Methanol, wt% | Ash - ISE, wt%3 | 4% Solution pH4 | On Mesh 120, wt% | On Mesh 80, wt% | |
|---|---|---|---|---|---|---|---|---|---|---|
| S Grade | Selvol™ Polyvinyl Alcohol 165SF | 99.65 +/- 0.35 | 67.00 +/- 5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 6.50 +/- 1.00 | ≤1.0 | ≤0.0 |
| Selvol™ Polyvinyl Alcohol 203S5 | 88.00 +/- 1.00 | 4.00 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.90 | 5.50 +/- 1.00 | ≤1.0 | ≤0.1 | |
| Selvol™ Polyvinyl Alcohol 205S | 88.50 +/- 1.50 | 5.70 +/- 0.50 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | ≤1.0 | ≤0.1 | |
| Selvol™ Polyvinyl Alcohol 513S | 87.50 +/- 1.50 | 14.00 +/- 1.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.70 | 5.50 +/- 1.00 | ≤1.0 | ≤0.1 | |
| Selvol™ Polyvinyl Alcohol 523S | 88.50 +/- 1.50 | 25.00 +/- 2.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.50 | 5.50 +/- 1.00 | ≤1.0 | ≤0.1 | |
| Selvol™ Polyvinyl Alcohol 540S | 88.50 +/- 1.50 | 50.00 +/- 5.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤0.50 | 5.50 +/- 1.00 | ≤1.0 | ≤0.1 |
| Item | Viscosity(a) (cps) | Degree of Hydrolysis Mol % | Ash(b) Wt % | Volatile Wt % | pH(c) | Particle size retained 80 mesh | Particle size retained 40 mesh | |
|---|---|---|---|---|---|---|---|---|
| S Grade | SELVOL™ E 575S Polyvinyl Alcohol | 65.0 - 85.0 | 86.0 - 89.0 | ≤0.5 | ≤5.0 | 5.0 - 7.0 | ≤1.0 % | ≤0.1 % |
| Low Hydrolysis | SELVOL™ E 603 Polyvinyl Alcohol | 3.0 – 4.0 | 78.5 – 82.0 | ≤0.5 | ≤5.0 | 4.5 – 6.5 | ||
| SELVOL™ E 605 Polyvinyl Alcohol | 4.0 – 5.0 | 78.5 – 82.0 | ≤0.5 | ≤5.0 | 4.5 – 6.5 | |||
| SELVOL™ E 575 Polyvinyl Alcohol | 65.0 - 85.0 | 86.0 - 89.0 | ≤0.5 | ≤5.0 | 5.0 - 7.0 |
| Item | Hydrolysis, mole% | 10% Solution Viscosity, cP1 | Total Volatiles, wt%2 | Total Organic Volatiles, wt% | Methanol, wt% | Ash - ISE, wt%3 | 10% Solution pH4 | |
|---|---|---|---|---|---|---|---|---|
| Tackified Grades | Selvol™ Polyvinyl Alcohol MM-51 | 98.40 +/- 0.40 | 1,300.00 +/- 200.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 4.65 +/- 0.25 |
| Selvol™ Polyvinyl Alcohol MM-81 | 98.40 +/- 0.40 | 1,500.00 +/- 200.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 4.65 +/- 0.25 | |
| Selvol™ Polyvinyl Alcohol MH-82 | 98.40 +/- 0.40 | 5,050.00 +/- 850.00 | ≤5.00 | ≤1.00 | ≤0.90 | ≤1.20 | 4.65 +/- 0.25 |
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