Too good to be true? A nickel coating that is slicker than the best self-lubricating materials? Not with the new, improved version of the Poeton APTICOTE 450 coating! Our latest development, the fruits of extensive research and testing in our tribological laboratory, has produced the holy grail – a composite Nickel/PTFE coating that outperforms its rivals by a wide margin – a super slippery nickel – a name given to it by our customers.
Other nickel/PTFE coatings are not in the same league!
In our laboratory friction tests, using a pin-on-disc configuration, our latest APTICOTE 450 gives much lower friction than our competitor’s Ni/PTFE coatings.
APTICOTE 450 is not only slippery; it exhibits low sliding wear. In our laboratory wear tests, at 10N load, APTICOTE 450 shows one tenth the wear of a standard Ni/PTFE coating. After heat-treatment, the wear rate drops by another factor of 5. And with 30N load, with its higher load capacity, APTICOTE 450 is 40 times better than standard Ni/PTFE
APTICOTE 450 also provides some non-stick properties, particularly at temperatures around 300°C where conventional polymer coatings begin to soften and char.
As plated, APTICOTE 450 has a hardness of 170-200Hv, increasing to 290-320Hv after heat treatment at 300°C. The benefit is a load-carrying capacity superior to rival Ni/PTFE coatings, crucial to its success on threads and splines.
APTICOTE 450 excels in preventing galling and seizure when stainless steel or titanium parts are fastened together or slide. On screw threads, internal or external, coverage is precise and even.
APTICOTE 450 is available in thicknesses from 5 to 10 microns. If corrosion protection is required, we can apply an undercoat of APTICOTE 400, making the overall thickness 15 to 20 microns
How do we do it?
We have reduced the particle size of the PTFE to sub-micron spheres, achieving the optimum % content and even distribution, giving the lowest friction coefficient without undermining the cohesion and hardness of the coating, factors that are crucial to its superior wear resistance and load carrying capacity.
Uniformity and surface finish
APTICOTE 450 provides uniform coverage, including corners, thread forms and bores. There is no requirement to post-finish, but if a specific (smoother) surface finish is required, Poeton will advise on its feasibility.
APTICOTE 450 can be applied to copper alloys, titanium and aluminium, as well as the more usual range of mild steel and stainless steels. It brings desirable tribological properties to lightweight materials - a vital property for aerospace and automotive applications.
Just some of the APTICOTE 450 successes:
Customers in aerospace, oil & gas, automotive and many other industrial sectors agree - ‘Slippery Nickel’ from the Poeton APTICOTE range is the coating of choice for durable dry lubrication and anti-galling requirements.
For details of all our processing capabilities, size and capacity, please follow this link.
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