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ALTEF® is a unique and durable anodised aluminium oxide coating with Teflon® impregnation.
It offers excellent protection against wear and corrosion. Its dielectric strength and scratch resistance are unrivalled. The Teflon® impregnation provides additional slip properties.
Coat thickness and composition
ALTEF® is suitable for coat thicknesses ranging from 15 to 70 µm, depending on the aluminium alloy used. The recommended coat thickness is 40 µm. Half of this layer thickness ‘grows’ into the base material, resulting in an application of 20 µm.
‑For wrought plates: ± 5 µm
‑For cast plates: ± 7 µm
‑For cast and die-cast alloys: ± 10 µm
This information applies to a coat thickness of 40 µm. Tolerance range varies with larger or thinner coats.
The colour of a component coated with ALTEF® depends on the alloy, the coat thickness and the type of processing. The colour spectrum ranges from light grey to anthracite.
ALTEF® can also be dyed black (according to VSA*210 / corresponds approximately to RAL9001). It is also possible to produce a gold-like colour (GOLD), but this is only available with special alloys.
*Colour designation of the association of Swiss anodising companies.
Our suitability table provides you with an overview of the aluminium alloys suitable for ALTEF®.
Standards and specifications
ALTEF® complies with the ‘MIL-A-63576 Type I Specification’.