There are several ways to make a GRP laminate, depending on how the glass fibers are arranged within the plastic matrix. The fiber can be placed as one or several overlapping meshes, in one direction or in perpendicular directions, depending on the stresses to which the material must be subjected. Sometimes more fiber meshes are used as point reinforcement in the most stressed areas. The glass fibers can also be sprayed with a gun, leaving the threads arranged randomly within the material - in an analogous way to how adobe was made.

The thickness, quantity and arrangement of the fibers substantially modify both the weight and resistance of the composite, so this variable is measured using concepts and units from the textile industry, such as Tex (weight in grams of 1000 m of fiber), or meters of yarn per kg of material, which in the Anglo-Saxon system is called Yield (yards of yarn per pound "Pound (unit of mass)") of material).

The amount of fiberglass[2]​ used varies depending on the type of GRP. As a percentage of the total weight, the most common quantities used in the type of projected glass range between 20% and 45%, in bidirectional meshes between 35% and 65%, and in unidirectional meshes between 50% and 90%.[3]​.

It is a light and resistant, rigid material, with good behavior against corrosion and wear, and a good thermal, acoustic and electrical insulator.[3]​ The properties of the material vary significantly depending on the manufacturing process, the amount of fiber, and the type of resin used.[3]​.

The mechanical properties depend essentially on the quantity and arrangement of the glass fiber. The tensile strength of the material can range from 500 kg/cm² with sprayed glass to 10,000 kg/cm² with unidirectional glass at 90% by weight.[3]​.

The rest of the properties (durability, abrasion resistance, etc.) will fundamentally depend on the type of resin. Depending on this, the material will be able to withstand temperatures between 125 °C and 300 °C.

There are several ways to make a GRP laminate, depending on how the glass fibers are arranged within the plastic matrix. The fiber can be placed as one or several overlapping meshes, in one direction or in perpendicular directions, depending on the stresses to which the material must be subjected. Sometimes more fiber meshes are used as point reinforcement in the most stressed areas. The glass fibers can also be sprayed with a gun, leaving the threads arranged randomly within the material - in an analogous way to how adobe was made.

The thickness, quantity and arrangement of the fibers substantially modify both the weight and resistance of the composite, so this variable is measured using concepts and units from the textile industry, such as Tex (weight in grams of 1000 m of fiber), or meters of yarn per kg of material, which in the Anglo-Saxon system is called Yield (yards of yarn per pound "Pound (unit of mass)") of material).

The amount of fiberglass[2]​ used varies depending on the type of GRP. As a percentage of the total weight, the most common quantities used in the type of projected glass range between 20% and 45%, in bidirectional meshes between 35% and 65%, and in unidirectional meshes between 50% and 90%.[3]​.

It is a light and resistant, rigid material, with good behavior against corrosion and wear, and a good thermal, acoustic and electrical insulator.[3]​ The properties of the material vary significantly depending on the manufacturing process, the amount of fiber, and the type of resin used.[3]​.

The mechanical properties depend essentially on the quantity and arrangement of the glass fiber. The tensile strength of the material can range from 500 kg/cm² with sprayed glass to 10,000 kg/cm² with unidirectional glass at 90% by weight.[3]​.

The rest of the properties (durability, abrasion resistance, etc.) will fundamentally depend on the type of resin. Depending on this, the material will be able to withstand temperatures between 125 °C and 300 °C.