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Applications
PEPCOAT is a functional engineering
coating with a unique and unusual combination of properties.
It is commonly used for a number of different but often complementary
reasons, such as to:
(i) provide superior corrosion
protection
The Phosphorous-Nickel deposit is resistant to attack
by almost all chemicals except strong oxidizing acids and salts.
PEPCOAT is superior to electrolytic deposits, especially in
outdoor exposure, because of its perfect coating coverage, low
porosity, uniform thickness, and amorphous deposit.
(ii) impart hardness and
excellent wear resistance
PEPCOAT can be heat treated to equal hard-chrome hardness
and wear resistance; in many applications, it is superior because
it is highly corrosion resistant and requires no post-finishing
operation such as grinding which can possibly impair the fatigue
strength of the coated object.
(iii) reduce friction
and galling
PEPCOAT has natural lubricity and its smoothness minimises
wear and prevents damage of mating surfaces. Galling of
metals like Aluminium can be prevented by coating one of the
two mating surfaces.
(iv) provide easy-release,
self-polishing surface
The surface properties and uniform deposition characteristics
make PEPCOAT superior to any other metal finish for moulds and
dies. In moulding of plastics like ABS and PVC, PEPCOAT
provides far better protection than hard-chrome against the
generated corrosive fumes.
(v) improve solderability
PEPCOAT is extensively used in the Electronics Industry
- 0n semi-conductor and thermo-electric devices a layer of PEPCOAT
provides a low-resistance solderable contact.
(vi) prevent product contamination
Many products, such as solvents, though not corrosive
to steel, are contaminated or discoloured by iron oxides.
PEPCOAT prevents rusting of steel nd ensures product purity.
Phosphorous -Nickel coating, approved by foreign regulatory
agencies such as FDA and USDA for direct contact with sensitive
products , is extensively used in the Dairy, Food and Pharmaceutical
Industry.
(vii) replace expensive
material of construction
There are numerous engineering examples where expensive
materials are used solely to obtain specific surface properties.
In such applications a cheaper base metal coated with PEPCOAT
offers an economical alternative.
(viii) salvage
PEPCOAT can be used to salvage worn and mismachined
parts at substantial cost savings.
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