Our Services
First established in 1927, the skills and expertise in both polishing and precious metal plating at F. Sinclair Ltd have been passed down through generations, building a respectable reputation as the best polishers in Hatton Garden.
Polishing & Finishing
Using up to date tools and techniques specific to the metal our team of specialist polishers are able to polish all types of precious metals.
Prepping & Threading
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Lapping
Lapping is a traditional technique used to cut facets, edges and bevels into items and is a skill which only specialist members of staff can undertake
Micro Plating with Fine Gold
Micro plating also known as 'hard gold plating' or electroplating', is the process whereby items of jewellery can be plated with gold. Layers, called microns, build up on the metal; more microns result in a thicker, longer lasting plate.
Rose Gold Plating
With the request for rose gold plating increasing significantly over the last few years, we have introduced a hard gold plating solution which allows for rose gold to be plated up to 2 microns thick.
Palnic Plating
Palnic plating can be used individually, or in conjunction with rhodium. This palladium (pal-) based plating contains traces of nickel (-nic) in the solution which allows the plating to better adhere to the metal.
Silver Plating & Antitarnishing
Silver plating is normally used on larger items such as jugs, salvors and even larger pieces like candelabra. Such items can be plated, however they need to be sterling silver.
Colour Guilding
Colour gilding is an option used to briefly change the colour of an item, giving an idea of how it would look in a different metal.
Black Plating
With the fashion industry having a massive influence on jewellery, customers have been requesting an extremely dark, intense colour to make their jewellery stand out.
Rhodium Plating
Rhodium is a precious metal belonging to the platinum family. It can be too brittle to make jewellery out of and is instead used to plate white gold to give it a brilliant finish in a range of colours such as white, blue and black.
Texturing, Satin & Sandblasting
Satin finishing is a texture which can be applied to numerous items and looks like brush strokes/ lines going horizontally or vertically. Sandblasting, both coarse and fine, can be described as a 'frosted' finish and is mainly used against a highly polished surface to create a contrast
Watch Refurbishment
Over the last five years we have broadened our skills, as specialist in texturing, to incorporate the watch industry. We offer refurbishments of numerous watch brands including Rolex, Cartier, Breitling, Chopard, Jaeger-Le-Coultre, Hublot, and Piaget.
