Why Glass Non-Wovens?

OCV non-wovens are made from randomly dispersed glass fibers, wet or dry laid, and bonded into a thin sheet.

Also known as veil and mat, glass-based non-wovens have many benefits for manufacturers and end-users, such as their dimensional stability and tear strength, and the fact that glass fibers do not absorb moisture or support mold and mildew growth.

These properties and benefits are used in multiple applications in several industries:

• In the building industry the products are used to reinforce faced acoustical ceiling panels, flooring, insulation, gypsum and exterior materials.
• The automotive industry uses veils in batteries and headliners.
• In composite molding, veils are used to reinforce gel-coated surfaces and provide a smooth, resin-rich surface.

Properties of Glass vs. Other Non-Wovens

Glass fiber-based non wovens give roofing shingles better dimensional stability and increased tear strength. This application also capitalizes on the fact that glass fibers do not absorb moisture, which can shorten the life of paper-based shingle products.

Glass fiber non-wovens give flooring products improved dimensional stability, strength, better insulating and acoustic properties as well as enhanced comfort.

Traditional wallboard is produced with a paper facing, but paper has two shortcomings: it absorbs moisture in humid environments and can support mold and mildew growth. Glass fiber non-wovens are unaffected by moisture and don’t support mold growth. In addition, they provide increased strength and stability which paper cannot achieve.

Surfacing veils for composite production strengthen the resin-rich gelcoat surface of the part, creating a strong bond with the underlying laminate and enhancing surface appearance by masking the coarse reinforcing fiber pattern.