Hi-Tek Products Ltd | Masking products | Metal finishing

Hi-Tek Products Ltd is the south's leading supplier of exemplary masking products. We produce predominantly for the metal finishing industry for electroplaters, metal finishing and specialist paint.

We offer tapered plugs manufactured in Neoprene or silicone. Our Neoprene 1200 series are produced in high-quality Neoprene and can be used with most electroplating and anodising electrolytes. They are appropriate for stove painting to a maximum temperature of 170^oC.

Our silicone 1300 tapered plug series are manufactured in high grade silicone capable of for high temperature work during powder coating processes in electroplating and anodising electrolytes. They have high chemical resistance in anodising, etching, e-coating systems, chrome plating, conversion coating, and electroless nickel plating. 

Our pull through plugs for through holes has a lead narrow (minor diameter) section that is used to pull the plug into place. Its major diameter should ideally exceed that of the parallel hole by about 0.5 to 1.00mm and the smaller diameter tail needs to be fed through the hole. The larger diameter should be pulled into place leaving some of it exposed outside the hole.

Allowing for the 45 degree angled shoulder the overall length of the pull through plug is just more than twice the major/minor length.

Some circumstances need the use of the self threading polythene plug. It has a smaller shoulder to restrict the extent they can be pushed into the hole but they are still long enough to guarantee a complete seal.

The flat head on the self threading polythene plug is easily removed the and they reusable up to an operating temperature of 80^oC. 

We also provide cone caps. They are a versatile silicone cap used in plating and powder coating industries and are often used as a plug or cap.

They are extremely useful as their rigid flange and malleable cone can act as a hanging surface. They can be used for masking irregular shapes or standard square or utilised as a pull plug.

An effective solution to masking slots and grooves and longer threads on studs is tubing. A diameter slighter bigger than the groove or slot is best for a good seal and a diameter smaller is better for threaded studs.

Our tubing is produced in vinyl is excellent for electro-plating jobs and in silicone rubber. Silicone tubing can be used in applications that reach a temperature of 260^oC during powder coating and supplied in 10 metre coils or a required length.