The invention relates to an aqueous sizing for treating R-glass, E-glass, and ECR-glass fibers.

In subsequent, so-called “second sizing”, BYK-C 8013 can, for example, be applied to the fiber in a spraying process, without the need to remove the first sizing beforehand.

In subsequent, so-called “second sizing”, BYK-C 8013 can, for example, be applied to the fiber in a spraying process, without the need to remove the first coat beforehand.

The invention relates to R-glass, E-glass, and/or ECR-glass fibers containing a sizing that comprises at least one multicomponent film former, a lubricant, and an adhesive.

A A thermoplastic molding preform is made of a carbon fiber, which is coated with a sizing at an amount between 0.05 and 0.29 weight% of the fiber.

A high solubility size composition is provided which may be applied to glass fibers useful for reinforcing polymeric materials.

An applicator for the deposition of size and other coating compositions onto the surfaces of reinforcing fibers (2), such as glass.

Using glass fibers coated with the high solubility size composition allows the advantageous production of low-pigmented or non-pigmented molded parts having enhanced surface appearance and color uniformity.

The device may be used to apply aqueous or non-aqueous size to continuously formed fiber materials in a high speed forming process.

The invention relates to an aqueous textile size for treating R, E, ECR and S glass fibres, in particular for the production of roving and fibres cut therefrom of a thermallly and chemically resistant glass.