Pultruded TRIGLASS® composite profiles (VTR – GRP – PRFV – CFRP), reinforced with fibreglass are ideal for all telecommunication-related projects due to their light weight, excellent mechanical characteristics and exclusive, intrinsic radar transparency.
Top Glass pultruded profiles better resist shocks and weathering agents and guarantee greater reliability and durabilitythan traditional materials such as aluminium, wood and steel.
For more than fifty years, Top Glass has been a leading manufacturer of auto antennas and specialises in the production of radomes for the protection of UMTS and GSM antennas.
What are the possibilities?
- Automobile antennas
- Radar transparent barriers
- Elements for faraday cages
Our product advantages in this sector: Telecommunications
Composite materials can be worked using conventional woodworking machines that have the ability to use diamond tools and/or those specified for fibreglass. You can also perform other operations on them such as connections with bolts, screws and rivets as well as gluing and painting.
A wide choice of resins allows the design of composites with strong resistance to atmospheric agents and weathering. Rain, particulate abrasion, UV radiation and temperature boundary conditions are easily controlled by means of different formulation strategies and/or surface protection.
The amorphous structure of composites stands up very well in large temperature fluctuations without presenting significant or permanent sectional deformation. The response of the material to applied loads is practically always in terms of elasticity. It has low creep and is consequently very stable.
Predicting the durability of composite materials is a topic Top Glass has studied for a long time. Our findings suggest optimal behaviour in outside conditions and bad weather. Of course, special conditions should be assessed to select the raw materials best suited to maximizing long-term mechanical and aesthetic features.
Fibreglass-based materials and thermosetting polymers have high dielectric capacity. Both components are inherently excellent electrical insulators. This characteristic is related to their optimal response to arc discharge, tracking, and surface and density resistivity.
The specific gravity of pultruded material is about 1.8 g/cm ³. It is much lighter than steel (7.85 g/cm ³) and aluminium (2.7 g/cm ³). Its high performance relative to weight allows the design of structures with low energy impact. Its lightness is also an advantage in relation to transport and logistics as well as low response to inertial forces, relevant to building structures in seismic areas.
Polymeric materials have insulating characteristics, resistance to weathering and chemicals and pigmentation possibilities (en masse) that allow their installation and use with almost zero maintenance.
The mechanical properties of composites are generally high and can be customized to take advantage of the anisotropy of reinforcement structure. The strongest enhancements have been in the longitudinal direction, which coincides with the direction of the pultrusion process. Resistances in that direction are now comparable to those of steel. In the case of unidirectional composites, longitudinal strength values can be triple those of steel. In contrast to traditional metal materials, pultruded profiles reflect behaviour that is elastic-brittle until breaking.
Fibreglass profiles are transparent to electromagnetic waves and do not generate interference at a radio frequency level.
Main products used in this sector: Telecommunications