The construction of fiberglass GFK


In the construction of glass fiber plastic, there are some possible variables in the selection of the layer materials. The basic principle remains the same for every fiberglass. Fixed nets or mats form the reinforcement within a homogeneous resin body. The layer thickness can vary and different materials can be added.

A resin and fiber mat cake

The basic structure of GFK consists mostly of resin and several inserted glass fiber mats. In the production of GRP, this material forms the basis of the entire structure. The sequence can be supplemented by individual inserted insulating and insulating mats.

The stabilizing and reinforcing mats are more or less permeable depending on construction and fabric type. They are soaked in liquid resin during lamination, which penetrates and cures the pores of the mats, fabrics or nets.

In this way, a homogeneous body is created, which has a fiber mat on every millimeter of layer thickness. Glass nests and air pockets endanger the homogeneity and must therefore be eliminated and avoided by technical means.

Variable reinforcement pattern

Sometimes misunderstood about the name is the so-called topcoat layer, which can represent the conclusion of GFK unused page. It forms the finish and resembles a finish.

The coating of gelcoat forms the surface seal, for example in model making. Ideally, it is designed and applied in such a way that it bonds with the GRP and continues the homogeneity of the entire body to the surface.

The construction of custom-made components and workpieces made of GRP has a combination of fiber progressions in the longitudinal and transverse directions. The fiber mats alternately inserted at an angle of ninety degrees produce, for example, increased draft stability.

An expanded form of stability recovery in construction are twisted axial fiber mats. They have the advantage of allowing increased stability without loss of space. Steel and aluminum fibers as single mat inserts additionally reinforce this effect.

Mixed forms are common in many applications. A typical structure may be a hard foam layer on which GRP is applied, for example, to combine a thermal insulation property with durability and resistance.

Tips & Tricks

If you have understood the basic principle of the construction of GRP, it is only up to you to dedicate your components and workpieces to your technical thoroughness.


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