Zinc Plating.

Chingford Technical Coatings Ltd - Zinc Rack Electroplating Services

Zinc Rack: We offer zinc plating on racks for items upto 6ft x 3ft x 3ft, in clear, colour and olive drab passivate finishes (hexavalent & trivalent available) working to BS1706 & within the RoHS Directive.

Passivate	µm	H	µm	H	µm	H	µm	H
Yellow	5	72	8	120	12	192	25	360
Olive Drab		72		120		192		360
Clear		48		72		n/a		n/a
Blue		48		72		n/a		n/a
Black		48		72		n/a		n/a
None		24		48		90		192

The above table gives a general overview of the corrosion resistance in hours H of zinc plating with various passivate finishes for a given thicknesses of deposit µm based on a 5% neutral salt spray test. Note, we do not offer black zinc coatings.

click thumbnail for larger image

Chingford Technical Coatings Ltd - Zinc Barrel

Zinc Barrel: We operate 3 zinc plating barrels for items such as nuts, bolts, fasteners and brackets finishing in clear, colour and olive drab with a capacity of upto 1000kg/per day. We offer both hexavalent and trivalent coatings and work to BS3382 and BS1706 standards.

Passivate	Barrel Plated Parts	Rack Plated Parts
Clear	8	16
Blue	8	16
Black	24	48
Yellow	72	96
Olive Drab	72	120
Yellow & Oil	120	165
Olive drab & Oil	120	165

Minimum hours salt spray resistance for each type of passivation.

De-embrittlement: For high tensile components such as class 12.9 bolts, we offer a de-embrittlement service up to 300°C.

click thumbnail for larger image

Passivates: We offer the following zinc passivates:

Iridite LY-FPC

Tripas ELV 1500LT

TriPass ECO 3