Weavelocked glass fabrics

The Compotex standard weavelocking process uses FR (fire retardant) polymers

Weavelocked glass fabrics – Compotex

Weavelocking seals the glass fibres in the fabric so that when it is cut and fabricated, fraying and airborne fibres are reduced. The Compotex standard weavelocking process uses FR (fire retardant) polymers. The overall temperature resistance of the fabric is unchanged at 550˚C.

We offer a full and very wide range of weavelocked fabrics. The normal weight range is 100 to 1500g/sqm. Widths are up to 1750mm.

Requirements are different for each of our customers. Some require a very stiff fabric to aid fabrication and the technical performance of the finished part. Others require as flexible a fabric as possible. Yet more are looking for a visual specification, eg a consistent and strong black colour, or they want the fabric unchanged and white.

Our versatile manufacturing means we have many different weavelocking dip specifications and can develop more as needed. Our laboratory and development capability, as well as our low minimum order quantities can also be very helpful for our customers.

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Our versatile manufacturing means we have many different weavelocking dip specifications and can develop more as needed.

Weavelocking

We were asked to come up with a solution for a very stiff glass fabric. The temperature requirement was under 550˚C. We therefore suggested that we could use a weavelock specification and did not need to recommend a silica formulation that would have increased the temperature limit to 700˚C.

A 400g/sqm tightly woven glass fabric was specified for its tensile strength. The Compotex weavelocking options all recommend a FR polymer. The customer also wanted the fabric to be black, which we were able to fulfil. The remaining issue for the specification was the level of stiffness.

We did some lab samples at different stiffnesses, all with the fire retardant polymer. These were analysed and discussed, resulting in a specification for the first small order.

The trial production was run, achieving the colour requirement and the stiffness. The customer took delivery of the first order, approved the specification and more orders followed.