Half round profiles – fiberglass

Top Glass manufactures HALF ROUND SECTION profiles (GRP – FRP- CRP)made in composite material.Our products are reinforced with fibreglass and they represent one of the pultruded profiles made by Top Glass.
Partially available from stock, our pultruded profiles are indispensable in the production of electrical devices such as dry-type transformers, electric motors and coils.
First of all their main strength is their optimal electrical insulation ability. This makes them ideal for use in the aforementioned systems involving strong electrical current.
It is also possible to produce, upon request, a halogen-free, self-extinguishing UL 94V0 version.
All the products meet the European Directive 2011/95/EC restricting the use of hazardous substances in electrical and electronic equipment.

Half round profile

download technical sheet

In-stock profiles are in red
Profiles available upon request are in grey
Measurement units: mm

 

The dimensions listed in red are in stock (subject to prior sale), while those in grey , are available upon request and can be custom produced with a variety of reinforcements, resins and colours.

 

SPECIFICATIONS OF IN-STOCK PROFILES

LENGTH IN STOCK: 2.000/2.500 mm

COLOUR IN STOCK: NATURAL

MATRIX IN STOCK: STANDARD POLYESTER

Base Radius
3 1,5
4 2
5 2,5
6 3
7 3,5
8 4
9 4,5
10 5
11 5,5
12 6
13 6,5
14 7
15 7,5
18 9
20 10
22 11
24 12

MEAN PHYSICAL-MECHANICAL PROPERTIES

PROPERTY TEST METHOD UNIT STANDARD PROFILES MEAN VALUE
Specific weight ASTM D792 g/cm3 1,9
Dielectric strength ASTM D149 kV/mm 5
Water absorption ISO 62 % 0,2
Surface resistivity EN 61340 1012
Dielectric constant at 50 Hz ASTM D150 ——– 5
Loss factor at 50 Hz (Tg δ) ASTM D7028 ——– 0,20
Thermal class ——– CLASS H
Longitudinal thermal expansion coefficient ISO 11359-2 K-1 7.5×10-6
Thermal conductivity EN 12667 / EN 12664 W/mK 0,3
Longitudinal flexural strength ASTM D790 MPa 650
Longitudinal flexural modulus EN 13706 GPa 30
Longitudinal compression strength ASTM D695 MPa 250
Longitudinal compression modulus ASTM D695 GPa 22
Fire reaction UL 94 CLASS HB

 

NOTE

  • POSSIBLE TO PRODUCE PROFILES IN H / UL 94 V0 CLASS WITH HALOGENS OR IN F CLASS / UL 94 V0 WITHOUT HALOGENS

VALUES REFER TO REINFORCED PROFILES WITH FIBREGLASS IN A POLYESTER MATRIX
Tolerance for mechanical properties refers to longitudinal direction: ± 10%.
The data provided is accurate. However, Top Glass does not assume any liability as to its use.