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Agents for grinding, polishing and tumbling processes

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The Pragopol grinding pastes are suitable for a very fine grinding as well as prepolishing of machinery parts made of miscellaneous metals and some plastics.

The Pragopol grinding pastes are composed of homogeneous blends of solid abrasives stuck together by fat-based binders, moulded into prism-shaped cardboard package of the size 60 x 60 x 200 mm. At the use, the paste stick should be pressed onto the grinding and rotating cloth disc or brush. As a result of the friction heat evolved, the fat as the uniform coating will be melted onto the disc and the disc is ready for the machinery grinding afterwards.

Pragopol 320 Grinding Paste
paste for basic grinding

Pragopol 320 Grinding Paste
paste for basic grinding

It is a basic paste of grey and brown colour for the grinding of steel, stainless steel, aluminium and other non-ferrous metals on the cloth, felt or fibre grinding discs.

Pragopol Grinding Grease
paste for a light grease of grinding discs

Pragopol Grinding Grease
paste for a light grease of grinding discs

A brown and red paste of a higher fat binder content, suitable predominantly for a slight greasing of the grinding discs at a rough grinding or abrasive scrubbing.

Pragopol Paste for Plastics
aste for grinding of the parts made of hard plastics

Pragopol Paste for Plastics
aste for grinding of the parts made of hard plastics

A grey and green paste for the grinding of the tough plastic ware, predominantly just before the prepolishing process, on the cloth grinding discs or brush. The fat binder contained will ensure a better lubrication as well as cooling of the ware grinded.

 

Pragopol Paste for Steel
paste for a fine grinding

Pragopol Paste for Steel
paste for a fine grinding

It is a brown and red paste for the grinding of steel and other ferrous metals on both grinding discs covered with fibre or cloth. It might be used for the grinding of non-ferrous metals as well. Unlike the Pragokor Paste 320, it contains a finer abrasive and is more a "grease-rich".

The Pragopol polishing pastes are suitable for the surface polishing of the machinery parts made of all metals and some plastics.

The pastes are homogeneous blends of abrasives and grease binders moulded into the prism-shaped cardboard package sized about 60 x 60 x 200 mm, alternatively into a cylinder-shaped package. At the use, the paste stick should be pressed onto the polishing and rotating cloth disc or brush. As a result of the friction heat evolved, the fat in the uniform coating will be melted on the disc and the disc is ready for the machinery polishing afterwards.

Pragopol S
paste of cream-to-pale beige colour for a very fine finish polishing

Pragopol S
paste of cream-to-pale beige colour for a very fine finish polishing

A freshly developed paste of a cream-to-beige colour particularly suitable for the very fine finish polishing of brass, stainless steel, nickel and other metals.

Pragopol for Aluminium J
paste of pale brown colour for polishing operations

Pragopol for Aluminium J
paste of pale brown colour for polishing operations

Paste of pale brown colour for the polishing of aluminium, alloys of non-ferrous metals and plastics on abrasive cloth discs.

Pragopol Tripol
paste of dark beige colour for the finish polishing

Pragopol Tripol
paste of dark beige colour for the finish polishing

A dark beige paste for the finish polishing of aluminium and other non-ferrous metals and plastics on the cloth polishing discs.

Pragopol ALM
paste of grey colour for polishing operations

Pragopol ALM
paste of grey colour for polishing operations

Paste of grey colour for the polishing of the parts made of steel, aluminium and zinc on cloth polishing discs.

Pragopol Green I
paste for the second step polishing

Pragopol Green I
paste for the second step polishing

A paste for the second-step polishing of steel and chromium, or, alternatively, for aluminium or other non-ferrous metals by cloth discs. The paste is more a "grease-rich".

Pragopol Green II
paste for the finish polishing

Pragopol Green II
paste for the finish polishing

A paste for finish polishing of steel, chromium and aluminium by cloth discs. Compared with Pragopol Green Paste I, this paste is poorer in the fat-based binders.

Pragopol Green III
paste for both first and second steps of polishing

Pragopol Green III
paste for both first and second steps of polishing

A paste for both first as well as second-step polishing processes of steel and brass on cloth discs, poorer in the fat-based binder. Compared with other green polishing pastes, this type provides most rough polishing.

Pragopol Green IV
paste for the second step of polishing

Pragopol Green IV
paste for the second step of polishing

A paste for the second-step polishing of steel, aluminium and other non-ferrous metals and plastics by cloth discs. It is a more "grease-rich" paste.

Pragopol Tallow Paste
paste for a light grease of abrasive discs and belts

Pragopol Tallow Paste
paste for a light grease of abrasive discs and belts

An agent, without any abrasives, for a slight greasing of both grinding and polishing discs and emery belts, saws blades, machinery tools etc.

Pragolesk Paste for Versatile Use
semi-liquid paste for hand polishing

Pragolesk Paste for Versatile Use
semi-liquid paste for hand polishing

The Pragolesk Paste is a semi-liquid, water-based substance convenient predominantly for both hand-assisted as well as machinery polishing and cleaning of smooth surfaces. It is a homogeneous blend of abrasives and binder and may be merely wiped off or washed away with water after use, the surface not being necessary degreased. The agent should be used for both polishing and cleaning of smooth surfaces, particularly non-ferrous metals, hard plastics (acrylic glass), hard paints or strongly soiled glass.

The package is 12,4 kg net weight in PE pails.

 

Pragopol 520
tumbling and deburring agent for the parts made of both ferrous as well as non-ferrous metals

Pragopol 520
tumbling and deburring agent for the parts made of both ferrous as well as non-ferrous metals

The Pragopol 520 tumbling agent is suitable for grinding and rounding sharp edges of the machinery parts made of both ferrous as well as non-ferrous metals. At the tumbling process, it protects the parts treated against corrosion and ensures short-term surface passivation. The agent may be used along with both St-3 as well as St-2/36 tumbling bodies.

It is also convenient for the tumbling process of the parts made o steel, brass and aluminium. Besides, the application by dusting at the vibration ball burnishing process of steel and non-ferrous metals is also possible. The agent enables passivation and preservation of the parts made of ferrous metals, together with self-cleaning and preservation of polishing balls at the same operation.

 

Pragopol 550
tumbling and deburring agent for the parts made of zinc and its alloys

Pragopol 550
tumbling and deburring agent for the parts made of zinc and its alloys

A tumbling agent suitable for deburring and grinding of zinc machinery parts, featuring a good cleaning ability for both the parts under treatment as well as tumbling bodies and, moreover, temporary anticorrosion protection imparted to the parts after the tumbling process against “white rust”. It should be used in both barrel tumbling and vibration machines.

Pragopol 580
tumbling and polishing agent for the parts made of aluminium and its alloy

Pragopol 580
tumbling and polishing agent for the parts made of aluminium and its alloy

A tumbling agent convenient for fine grinding, lapping and polishing of aluminium and its alloys. It should be predominantly used for barrel tumbling processes by steel ball-shaped or cylindrical bodies but, besides, it may be possibly employed for vibration machines as well.

Pragopol 808
tumbling agent with a degreasing effect for polishing, descaling and deburring the machinery parts made of steel, copper and silver and their alloys

Pragopol 808
tumbling agent with a degreasing effect for polishing, descaling and deburring the machinery parts made of steel, copper and silver and their alloys

Pragopol 808 is a liquid concentrate for the compound process of degreasing together with descaling and polishing in one operation suitable for the machinery parts made of steel, alloyed steels including austenitic stainless steels, further for copper and silver and their alloys in the tumbling vibrational machines employing the stainless steel or ceramic tumbling bodies. Furthermore, due to its strong disperse activity and capability to prevent sticking of the lead particles onto the bullet shealth made of red brass, the agent proved for the tumbling of the shealthed bullets with the lead cores. In some cases which will depend on the characteristics of the work treated, the polishing process may be even operated without the tumbling bodies. Moreover, the machinery parts made of stainless steel and copper and its alloys may be convenietly ground and deburred at the tumbling process employing the agent and the ceramic bodies.

Pragopol 809
tumbling and degreasing agent for the parts made of copper and silver and their alloys

Pragopol 809
tumbling and degreasing agent for the parts made of copper and silver and their alloys

A liquid concentrate suitable for combined surface treatment operation – degreasing together with polishing - of the machinery parts made of copper and silver and their alloys in tumbling and vibration machines by stainless steel tumbling bodies. Depending on the shape of the parts to be treated, the process may be allowed even without tumbling bodies in some cases. The current use of Pragopol 809 is for both grinding and deburring of the parts made of stainless steel and copper and their alloys by ceramic tumbling bodies.

Pragopol 810
acid-based agent for tumbling and polishing, together with passivating effect, for the parts made of copper and silver and their alloys

Pragopol 810
acid-based agent for tumbling and polishing, together with passivating effect, for the parts made of copper and silver and their alloys

A liquid concentrate suitable for both tumbling and polishing operations of copper and silver and their alloys in tumbling and vibration machines by stainless steel tumbling bodies. It is possible in some cases (depends on the shape of the parts to be treated) for the parts to be polished even without auxiliary tumbling bodies. Pragopol 810 may be further used for grinding and deburring of the parts made of austenitic stainless steel, copper and their alloys by ceramic tumbling bodies. Due to a passivating layer created on the surface of the parts at their treatment, the agent brings about enhanced anticorrosion protection in acid environments.

Pragopol 812
acid-based agent for tumbling and polishing, together with passivating effect, for the parts made of austenitic stainless steel, copper and silver and their alloys

Pragopol 812
acid-based agent for tumbling and polishing, together with passivating effect, for the parts made of austenitic stainless steel, copper and silver and their alloys

Pragopol 812 is a liquid concentrate suitable for both tumbling and polishing operations of copper and its alloys in tumbling and vibration machines by stainless steel tumbling bodies. It is possible in some cases (depends on the shape of the parts to be treated) for the treated parts to be polished even without auxiliary tumbling bodies. Besides the surface passivation and imparted anticorrosion protection, the agent is able to remove corrosion products from the treated parts. The agent deposits a very thin layer of chemisorpted organic-based corrosion inhibitors.

Pragopol 813
tumbling agent for passivation and lubrication of the parts made of copper, silver and their alloys

Pragopol 813
tumbling agent for passivation and lubrication of the parts made of copper, silver and their alloys

A liquid concentrate convenient for the passivation against corrosion of the parts made of copper and silver and their alloys, after their tumbling or polishing operations in both vibration and tumbling machines by stainless steel or ceramic tumbling bodies. Besides, the agent provides a lubrication effect which, at a drying, will prevent the machinery parts after their treatment from possible undesirable marring of their highly polished finish.

Pragopol Polishing Salt UNIVERSAL
versatile agent for tumbling and polishing of the parts made of steel

Pragopol Polishing Salt UNIVERSAL
versatile agent for tumbling and polishing of the parts made of steel

A polishing and tumbling agent for both barrel polishing and tumbling of small steel machinery parts. The priority use should be given to the polishing of the parts of more complicated shapes which otherwise are very difficult to be polished on discs.

Pragopol OB 32
agent for deburring, grinding and descaling of the parts made of steel and austenitic stainless steel

Pragopol OB 32
agent for deburring, grinding and descaling of the parts made of steel and austenitic stainless steel

A powder abrasive agent for tumbling of the machinery parts, capable of further breaking into finer grains which, however, retain their sharp-edged character and, therefore, performance at the tumbling process until as much as fine particles are achieved enough to be able to grind or even polish. The tumbling process, hence, continues as the polishing operation in the same barrel. The surfactants and corrosion inhibitors contained provide surface treatment of the parts made of all common metals including stainless steel, aluminium and its alloys and zinc.

Pragopol OB 32 is suitable for deburring, grinding, descalling and derusting from metallic substrates by both vibration and barrel-tumbling and, moreover, for fine grinding prepolishing and polishing of steels including ferritic austenic stainless.

The agent is usually used in combination with ceramic grinding bodies. In case of polishing the combination with china bodies without grinding effect. In some cases Pragopol OB 32 may be used without auxilliary ginding or polishing bodies. Besides greased parts may be treated.

 

Pragolod 14
umbling and degreasing agent for steel and cast iron, together with passivating effect

Pragolod 14
umbling and degreasing agent for steel and cast iron, together with passivating effect

Pragolod 14 is a liquid alkaline agent for combined technological operations degreasing together with surface passivation and is formulated on the basis of both low-foaming surfactants of high biodegradability and corrosion inhibitors. It should be used for tumbling of ferrous metals. Besides, it may be used for passivation of ferrous metals after pickling or other technological operations in water – based agents if an active steel surface is needed to be pasivated. Steel and ceramic bodies may be used at tumbling process.

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