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TUFNOL Technical information
TUFNOL Laminates
SELECTING THE RIGHT MATERIAL
Correct material selection is essential to successful performance. The technical requirements of working environment, material properties and component performance must be balanced with economic factors such as cost, availability and production methods.
CHOOSING THE RIGHT GRADE
TUFNOL laminates have a wide range of characteristics and it is important to select the correct type for each application.
By highlighting the most common materials and their characteristics, the information on this website should assist in selecting the material most suited to your needs. Technical advice and information is freely available from Tufnol on both the common and the more sophisticated products in our range.
Application Guide For TUFNOL Laminates
Typical choices
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Application requirements |
Phenolic Paper Grades |
Phenolic Cotton Grades |
Epoxy Paper & Cotton Grades |
Polyester Glass Grades |
Glass Fabric Grades |
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General mechanical |
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Low voltage insulation |
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High voltage insulation |
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High temperature |
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Wear resistance |
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Low water absorption |
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Dimensional stability |
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Good machinability |
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Resistance to environment |
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The Characteristics of TUFNOL Laminates
What engineers need to know.
High-pressure laminates are light in weight and have good strength, with very useful electrical insulating properties. They have a modulus generally lower than most metals and they are sympathetic to mating metal parts, without being ductile. They do not corrode and can help to prevent corrosion in metal parts. They have higher thermal expansion than many metals and are capable of absorbing a small amount of environmental moisture, which produces slight dimensional changes. Laminates can also be readily machined, to produce components.
In comparison with most engineering thermoplastics, laminates generally are more rigid and stronger under flexural, tensile and compressive forces. They can withstand heavy loads with little plastic deformation and, at normal stresses, creep is minimal, giving load bearing characteristics superior to those of many thermoplastics materials. Laminates offer exceptionally wide temperature capability and they are not impaired by repeated cooling and warming. They have excellent weather resistance and are used in applications requiring very long life in outdoor or marine environments. Chemical resistance to most oils and other hydrocarbon fluids is also good, including most solvents. Concentrated acids and alkalis will attack laminates, but in a dilute form these fluids do not cause appreciable damage.
The grades of TUFNOL laminates which are reinforced with cotton or synthetic fabrics have excellent bearing properties and are used in a very wide range of wearing applications. Water is a very effective lubricant for these grades. This feature is extremely useful, allowing design and operation to be simplified where water or water-based fluids are already present.
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A full machining service is available from Tufnol for this and many other engineering plastics and composites.
Tufnol Composites Ltd, Wellhead Lane, Perry Barr, Birmingham B42 2TB, United Kingdom.
Quality Registration BS EN ISO 9001:2000, BS EN 9100:2003 and AS 9100 Reg. No. FM 90942
The information given here is believed to be correct, but completeness and accuracy are not guaranteed. The user shall be fully responsible for determining the suitability of products for the intended use.
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