Picture of fibreglass



The choice of reinforcement is important for the properties of the profile, including mechanical properties such as strength and stiffness.

The orientation of the reinforcement is also of great importance to the properties of finished products as regards load-carrying capacity.

Profiles manufactured by Fiberline are a combination of various types of roving and different types of complex weaves and mats.

Structural profiles are for example often subjected to loads that are transversal to the length of the profile (i.e. transversal to the direction of pultrusion), and these profiles must often be capable of resisting pull-out loads from bolts etc.

Not only unidirectional roving is therefore used, but also roving in which some of the fibres are oriented transversely. In addition, mats and weaves with different fibre orientations are used. Mats and weaves with fibre orientations of between 45° and 90° contribute primarily to improving bolt pull-out strength and mechanical properties in the transverse direction.

The combination of roving and mats can be tailored to the requirements made to the individual profile based on the needs of the customer.

Types of rowing

Types of rowing


Type of mat

Type of mat

Continuous mat random fibre orientation
Weave 0º/90º
Complex mat 0º/90º weave + random fibre orientation
Multiax mat 0º/±45º
Specially developed mat based on specific requirement

If a profile is to be located in a corrosive environment an “surfacing veil” is used. This can be thin fibreglass matting, thin thermoplastic polyester matting or acrylic matting which is placed on the entire profile surface to protect the glass fibres against corrosion and subsequent deterioration of the mechanical properties of the profile.

The pultrusion process necessitates that a certain number of the fibres be oriented in the direction of pultrusion, but the reinforcement can otherwise be structured in innumerable ways depending upon the load.

Combining advantages

CE marking

Our products have a number of international and highly sought-after certifications, among other, within the construction, offshore and railway sectors. This is your guarantee of consistently high quality every time you buy from us and use our products.

Low weight

Fiberline's GRP profiles are low in weight. This makes them easier to work with and means that great weight savings can be achieved on the finished structure.

Great strength

Fiberline Building Profiles give you the same great strength as steel, but at only a quarter of the density. It is also possible to make weight savings in comparison with aluminium, as the density is 30 % lower.


Our fibreglass profiles are resistant to aggressive chemicals, and liquids. This makes them ideal for wastewater treatment plants, swimming pools, cooling towers and construction, where there is a risk of corrosion.

Chemical resistance

Our fibreglass profiles are resistant to aggressive chemicals, liquids and alkalis. This makes them ideal for wastewater treatment plants, swimming pools, cooling towers and construction, where there is a risk of corrosion.

Electrical insulation

Fiberline's GRP profiles provide electrical insulation and minimise the complexity of earthing. This makes our profiles a future-proof choice where the costs of both installation and future inspections can be reduced considerably.

Easy to work with

GRP profiles are just as easy and fast to work with as timber. This means that solutions which incorporate our profiles can be installed easily on site or adjusted to fit existing components, such as piping systems, etc.

Thermally Insulating

Fiberline's fibreglass profiles have a significantly lower heat distribution gradient than steel and aluminium, enabling energy-efficient end products.

Minimal maintenance

Our GRP profiles have unrivalled durability and a long life, even in demanding conditions.


Fiberline's fibreglass profiles are produced using an energy-optimised process that takes the environment into consideration.

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