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TUFFCOAT™ can be applied to most common aluminum alloys. TUFFCOAT™ has been
found to extend part performance and life in numerous applications. Some of these include pins, shafts, pistons,
gears, pinions, slides, tracks, impellers, volutes, rails, etc., just to name a few. TUFFCOAT'S ™ applications
are virtually endless. Any situation that needs a hard, slick surface is right for TUFFCOAT™ . TUFFCOAT ™ is also
an electrical insulator.
TUFFCOAT ™ conforms to MIL-A-63576A Type 1.
TUFFCOAT'S ™ normal thickness is 0.002 in. on most alloys. Coating
thickness can be varied if customers request. TUFFCOAT ™ , as with hard anodizing, builds with half of the
coating penetrating the original aluminum surface layer and half of the coating building on top of the
original aluminum surface layer. In otherwords, 0.001 inches in and 0.001 inches out for a total layer
thickness of 0.002 inches. This becomes critical in part design and machining. The engineer must bear in
mind that bores will close 0.002 inches in the diameter, studs will grow 0.002 inches in diameter, and part
width and length will grow 0.002 inches with a TUFFCOATED ™ piece.
- TUFFCOAT ™ has a hardness of 60 to 65 Rockwell.
- Corrosion resistance - 2,000 hours plus with ASTM salt spray test.
- Lubricity - Dependent on machined surface finish. However, significantly lower
co-efficient of friction when compared to regular hard anodized and raw aluminum.
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