Glossary

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Oozing - Concerning PSA, referring to the condition where the sides of a roll become sticky or tacky due to the flowing out of adhesive between the layer of tape.

Open Cell Rubber Material - A rubber product produced by a specific manufacturing process that utilizes a chemical blowing agent that expands the mass during the vulcanization process. Open cell rubber is defined as materials whose cells are not totally enclosed by its walls and open to the surface, either directly or by interconnecting with other cells. The primary characteristics are that water, air or gas can pass through, much like the way water is absorbed by a dish sponge. This type of material is also excellent for padding and cushioning applications where low compression set is required.

Over-Cure - For cellular rubber, the time period or temperature in which various chemical reactions which occur (e.g. cross-linking) last too long. The result is blisters, too tight of a cell structure, voids along the edges, etc. This problem is most apparent on the edges of a material.

Ozone Resistance - The ability of a material to resist degradation in sunlight and/or outdoor exposure.