Chemico Grinding Paste Extra Coarse 30/60 Grit 300g

Chemico Grinding Paste Extra Coarse 30/60 Grit is a professional abrasive compound designed for demanding grinding, lapping, honing, and metal finishing operations. The compound combines sharp silicon carbide abrasive particles with a lithium grease base. As a result, it provides controlled and efficient cutting action during precision engineering and maintenance work.

The 30/60 grit grade offers a relatively aggressive grinding action. Therefore, it works particularly well when you need to remove burrs, smooth score marks, correct rough surfaces, or prepare components before using a finer grinding grade.

Made in England, this Chemico Grinding Paste 300g suits automotive workshops, engineering facilities, tool rooms, machinery maintenance, and general metalworking applications.

Key Features of Chemico Grinding Paste

• Extra coarse 30/60 grit grinding paste
• Contains sharp silicon carbide abrasive particles
• Lithium grease-based formulation
• High viscosity for controlled application
• Excellent shear stability during grinding
• Helps maintain abrasive contact with the work surface
• Provides inherent corrosion protection
• Offers good sealing properties
• Suitable for grinding, lapping, honing, and seating operations
• Ideal for demanding engineering and workshop applications
• 300g convenient packaging
• Made in England

Chemico Grinding Paste 30/60 Grit Applications

This extra coarse grinding compound supports a wide range of engineering and maintenance tasks. For example, technicians can use it for valve seating, metal lapping, cylinder honing, and burr removal.

Common applications include:

• Engine valve grinding and seating
• Cylinder honing
• Removal of score marks from metal
• Burr removal from machined components
• Lapping shafts into bearings
• Lapping nuts into bolts
• Cylinder head finishing
• Connecting rod bearing work
• Crankshaft bearing lapping
• General engineering maintenance
• Tool making and precision workshop work
• Sharpening lawn mower cylinder blades
• Sharpening hedge cutter blades
• Sharpening scissors and shears
• Removing rust and grime from propeller shafts
• Cleaning and finishing boat trailer components

Silicon Carbide Abrasive for Efficient Grinding

Chemico uses silicon carbide as the abrasive material because it offers high hardness and sharp cutting characteristics. During grinding, the abrasive particles break down into smaller sharp particles. Consequently, the compound can continue providing effective abrasive action throughout the operation.

The 30/60 grit provides a harsher grinding action than finer grades. Therefore, users should select the grade according to the condition of the component and the required finish.

In particular, extra coarse grinding paste works well for heavily worn, scored, or uneven surfaces that require more aggressive material removal.

Lithium Grease Base for Controlled Grinding

The lithium grease base gives Chemico Grinding Paste a high-viscosity consistency. This formulation helps keep the abrasive compound where you apply it instead of allowing it to move away from the grinding area.

Furthermore, the grease base provides shear stability during operation. This property helps maintain effective abrasive contact while the components move against each other.

The formulation also provides inherent corrosion protection and good sealing properties, adding further value during workshop and maintenance operations.

Chemico Valve Grinding Paste 30/60 Grit

Chemico Grinding Paste can help technicians restore and seat engine valves when the correct grinding procedure is followed. The extra coarse grade works especially well on seats that require significant correction before finishing with a finer compound.

For best results, always check the engine or component manufacturer’s service manual before starting the operation.

Valve Grinding Procedure

1. Apply a small amount of Chemico Grinding Paste to the valve seat.
2. Keep the paste away from the valve stem and valve guide.
3. Grind the valve using the manufacturer’s recommended procedure.
4. Continue until the valve seat develops a uniform appearance.
5. If the seat remains heavily pitted, begin with the extra coarse grade.
6. Follow the coarse operation with a finer grinding grade for final finishing.
7. Thoroughly remove all grinding residue after completing the operation.
8. Degrease the components with a suitable cleaning solvent before reassembly.
9. Reassemble the valve according to the manufacturer’s instructions.

Important: Coarser grit produces a more aggressive grinding action and can create deeper scoring. Therefore, use the 30/60 grade carefully and follow the recommended finishing process.

Chemico Grinding Paste for General Engineering

Beyond valve work, this grinding compound supports many precision engineering operations. Workshops can use it to improve mating surfaces, remove small imperfections, and achieve accurate component fits.

For example, technicians can use Chemico Grinding Paste when lapping shafts into bearings or matching nuts and bolts. It can also help remove machining marks, burrs, and surface imperfections from suitable metal components.

As a result, the compound can support both routine maintenance and precision workshop operations.

Why Choose Chemico Grinding Paste Extra Coarse?

Choosing the correct abrasive grade can significantly improve grinding efficiency. The 30/60 grit Chemico Grinding Paste provides an aggressive starting point for components that need substantial correction.

Moreover, its high-viscosity lithium grease base helps maintain the abrasive compound during operation. The silicon carbide particles then provide the cutting action required for grinding and lapping.

For applications that require a smoother final finish, move from the extra coarse grade to an appropriate finer grade after achieving the required correction.

Product Specifications

How to Get the Best Results

First, clean the component and remove loose dirt, oil, and contaminants. Next, apply only the amount of grinding paste required for the operation. Excessive compound can make the process difficult to control.

Then, perform the grinding or lapping operation according to the component manufacturer’s instructions. Afterward, clean the component thoroughly and remove every trace of abrasive residue before assembly.

Finally, inspect the finished surface to confirm that it meets the required specification.

Important Safety and Usage Note

Always consult the manufacturer’s handbook or service manual before beginning any grinding or valve-seating operation. Follow the recommended procedure, abrasive grade, and component tolerances carefully.

Because grinding applications vary widely, users should evaluate the suitability of the compound for their specific component and operating conditions. Clean all parts thoroughly after grinding to prevent remaining abrasive particles from causing unwanted wear.

Buy Chemico Grinding Paste Extra Coarse 30/60 Grit 300g

Chemico Grinding Paste Extra Coarse 30/60 Grit 300g provides a practical solution for aggressive grinding, valve seating, lapping, honing, and precision metal finishing. Its silicon carbide abrasive delivers sharp cutting action, while the lithium grease base helps maintain controlled abrasive contact.