Dog Bone profiles – fiberglass

Top Glass manufactures DOG BONE 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.

Dog Bone standard - composite materials

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: 2.000/2.500/3.000 mm

COLOUR IN STOCK: NATURAL

MATRIX IN STOCK: STANDARD POLYESTER

download technical sheet

Base	Height	Th.
8	6	3
10	8	4
12	10	5
13	10	5
14	10	5
16	12	6
16	13	6,5
18	14	7
20	16	8
24	16	8

Reinforced Dog Bone

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

SPECIFICATIONS OF IN-STOCK PROFILES

LENGTH IN STOCK: 2.000/2.500/3.000 mm

COLOUR IN STOCK: NATURAL

MATRIX IN STOCK: STANDARD POLYESTER

download technical sheet

Base	Height	TH.
8	6	2
10	8	2
12	10	2,5
14	12	2,5
16	14	3
18	16	3
20	18	4
22	20	4

MEAN PHYSICAL-MECHANICAL PROPERTIES

PROPERTY	TEST METHOD	UNIT	STANDARD MATRIX 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	Ω	10¹²
Stable dielectric 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.

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Dog Bone profiles – fiberglass