Tufnol Grade 10G/42

Identification & Functionality

Chemical Family: Epoxy & Epoxy Derivatives
Polymer Name: Epoxy Resins & Compounds
Reinforcement Form: Woven Fabric
Reinforcement Material: Glass Fibers
Composite Materials Functions: Laminate
Technologies: Composite Materials
Product Families: Composite Materials — Prepregs & Molding Compounds
Laminates

Features & Benefits

Materials Features: Consistent High Quality,
Dimensional Stability,
Excellent Mechanical Strength,
Good Electrical Properties,
Good Rigidity,
High Performance,
High Strength,
Low Moisture Absorption

Applications & Uses

Markets: Industrial
Applications: Industrial — Chemical & Industrial Manufacturing
Equipment & Parts
Composites End Use: Cryogenic Applications,
Jigs
What is Grade 10G/42 used for?: These high-performance materials are used for a very wIde variety of applications where high strength, rigidity dimensional stability and electrical performance are required.

Applications such as insulation in large turbine generators, components for cryogenic superconducting magnets, high-strength bolt insulation in structures, jigs for electro-chemical machining and structural insulation for high peformance electronic equipment, these are typical of the many uses to which this material is put.

However, due to the abrasive nature of the high glass fiber content, epoxy glass grades are not normally selected for wearing or bearing applications.

Properties

	Value	Units	Test Method / Conditions
Cross Breaking Strength	490.0	MPa	-
Cross Breaking Strength (150°C, After 1 hour)	350.0	MPa	-
Impact Strength (Notched, Charpy)	60.0	kJ/m²	-
Compressive Strength (Flatwise)	415.0	MPa	-
Compressive Strength (Edgewise)	300.0	MPa	-
Water Absorption (1.6mm Thick)	5.0	mg	-
Water Absorption (3mm Thick)	7.0	mg	-
Water Absorption (6mm Thick)	10.0	mg	-
Water Absorption (12mm Thick)	15.0	mg	-
Electric Strength (Flatwise in Oil, 90°C, 1.6mm Thick)	17.0	MV/m	-
Electric Strength (Flatwise in Oil, 90°C, 3mm Thick)	15.0	MV/m	-
Electric Strength (Flatwise in Oil, 90°C, 6mm Thick)	12.0	MV/m	-
Electric strength (Edgewise in Oil, 90°C)	70.0	kV	-
Insulation Resistance (After Immersion in Water)	5 × 10¹⁰	ohms	-
Relative Density	1.9	-	-
Loss Tangent (1MHz)	0.017	-	-
Permittivity (1MHz)	5.2	-	-
Comparative Tracking Index	290.0	-	-
Working Temperature (Continuous)	max. 140	°C	-
Working Temperature (Intermittent)	max. 155	°C	-
Thermal Classification	Class F	-	-
Thermal Conductivity (Through Laminae)	0.45	W/mK	-
Thermal Expansion (Plane of Laminae)	1.2 × 10⁻⁵	/K	-

Regulatory & Compliance

Specifications: British Standards Current Standards Recent Standards (Now Obsolete)

Grade 10G/42 Sheet BS EN 60893-3-2 Type EP GC 203 BS 3953 Type EP-5

NEMA* - Grade 10GI40 Sheet & Rod - NEMA L-1-1983 Type G11

*Testing and certification to these standards is subject to special enquiry. Standard quality testing is to British Standards.

Packaging & Availability

Types Available: Types Availabe Sheets Rods Tubes Other Sections

Tufnol Grade 10G/42 - Natural Color Yes No No No

Enhanced TDS

British Standards	Current Standards	Recent Standards (Now Obsolete)
Grade 10G/42 Sheet	BS EN 60893-3-2 Type EP GC 203	BS 3953 Type EP-5

Types Availabe	Sheets	Rods	Tubes	Other Sections
Tufnol Grade 10G/42 - Natural Color	Yes	No	No	No