Insulation tapes and fabrics

Gavazzi Technical textiles for electric and thermal insulation

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Adhesive tapes reinforcement Fabrics for Special Impregnations Insulation tapes and fabrics

Thanks to the experience and know-how in the sector, Gavazzi produces a wide range of tapes and fabrics with different yarns, such as glass, basalt and aramid, made in all widths starting from 3 mm and with different thicknesses.

Their use is required in various application sectors: insulation of electrical cables and transformer coils, cables in asynchronous motors, alternators, stators, transformers and superconducting magnets, where the dielectric properties of glass are exploited.
In the world of composites, such as boat building and transport, they are used to create structural parts, to repair or reinforce partitions, solving specific technical or production needs.

The advantages of fiber glass

The type of fiber most used in weaving is glass fiber which, thanks to its numerous properties, transfers important advantages to ribbons and fabrics:

Mechanical resistance: High tensile strength along the longitudinal direction
Insulation: by its nature, glass fiber has a very low electrical conductivity. The tape is therefore applied to the cables and conductors in order to insulate them and, at the same time, protect them from external agents.
Resistance to high temperature: the textile products in glass fiber take on a fireproof function, act as a wrapping of the components on which they are applied, preventing the spread of flame.

The silane finish

The silane finish is a treatment of the yarn aimed at offering an optimal bonding to epoxy or polyester resins, mainly used in repairs and reinforcement in the boat building sector.
Tapes with silane sizing have high impregnation capacities which guarantee greater friction than untreated tapes.

Caramelization

Caramelization is a thermal treatment carried out to remove most of the sizing from the yarn. The organic matter fraction remaining after caramelization is approx. 0.10-0.15%.
The treatment allows to limit the formation of smoke in case of exposure of the belt to high temperatures.
Furthermore, the removal of most of the sizing significantly increases the impregnation of the fiber with resins.

Recommended products

ARTICLE	WEIGHT	WEAVE	THICKNESS	NOTES
6001	200 g/m2 ± 5%	Plain	0,18 mm	Glass fiber S2
6005	205 g/m2 ± 5%	Plain	0,19 mm ± 0,04	Glass fiber S2
6006	270 g/m2 ± 5%	Plain	0,27 mm ± 0,04	Glass fiber S2
6009	138 g/m2 ± 5%	Plain	0,13 mm ± 0,05	Glass fiber S2
6010	252 g/m2 ± 5%	Plain	0,25 mm ± 0,02	Glass fiber S2
6767	220 g/m2 ± 5%	Plain	0,16 mm ± 0,03	-
6768	148 g/m2 ± 5%	Plain	0,10 mm ± 0,02	-
6770/1	100 g/m2 ± 7%	Plain	0,07 mm ± 0,02	-
6816	230 g/m2 ± 5%	Plain	0,19 mm ± 0,03	-
6840	470 g/m2 ± 5%	Tela	0,40 mm ± 0,05	-
6886	185 g/m2 ± 5%	Plain	0,20 mm	-
6926-C	270 g/m2 ± 5%	Plain	0,26 mm ± 0,04	Caramelized
6927-C	320 g/m2 ± 5%	Plain	0,42 mm ± 0,05	Caramelized
6928-V	560 g/m2 ± 5%	Plain	0,54 mm ± 0,06	Caramelized
6990	265 g/m2 ± 5%	Unidirectional	0,30 mm ± 0,08	Thermo-welded
6991	520 g/m2 ± 5%	Unidirectional	0,36 mm ± 0,05	Thermo-welded
6992	930 g/m2 ± 5%	Unidirectional	0,56 mm ± 0,07	Thermo-welded
8001	800 g/m2 ± 5%	Unidirectional	Approximate value 0,51 mm	-
8039	1000 g/m2 ± 5%	Unidirectional	Approximate value 0,65 mm	Thermo-welded
8084	700 g/m2 ± 5%	Unidirectional	Approximate value 0,41 mm	-
8092	625 g/m2 ± 5%	Unidirectional	Approximate value 0,42 mm	Thermo-welded
8125	1210 g/m2 ± 5%	Unidirectional	Approximate value 0,76 mm	-
8400	390 g/m2 ± 5%	Unidirectional	Approximate value 0,28 mm	Thermo-welded
8600	606 g/m2 ± 5%	Unidirectional Weft	Approximate value 0,46 mm	-
8960	945 g/m2 ± 5%	Unidirectional	Approximate value 0,65 mm	-
V2-05	275 g/m2 ± 5%	Unidirectional	-	-

Gavazzi Technical textiles for electric and thermal insulation

The advantages of fiber glass

The silane finish

Caramelization

Recommended products

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