Selvol™ Polyvinyl Alcohol Product Information
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, we continually develop new applications 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. Read more about Selvol polyvinyl alcohol here.
The grades of Selvol PVOH offer incredible versatility in one product. In fact, it’s the most versatile PVOH product we offer. The key to working 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. The viscosities are classified as ultra low, low, medium and high. Degree of hydrolysis is commonly denoted as super, fully, intermediately and partially hydrolyzed. 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 the 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. Moreover, these solutions have a tailored degree of tack and significantly reduce penetration when applied to surfaces such as paper.
Selvol Polyvinyl Alcohol Solutions
SEKISUI Specialty Chemicals provides premade solutions of some of our standard grades. A Selvol PVOH solution eliminates the dissolution step and creates a number of advantages:
- Ready-to-use, improved solution consistency
- Lower energy costs
- Lower processing costs (no cooking required)
Selvol PVOH solutions are available only in the U.S.