10 Best Lapping Compound of December 2025

• Valve Grounding Compound
• All Prime Line parts are made to meet or exceed OE specs and quality
• Multi-Use Valve Grinding Compounds Included
• 2 oz. of Coarse Grade Compound for Grinding
• 1 oz. of Fine Grade Compound for Finishing
• No assembly required

Prime Line

• Removes: burrs, surface defects, corrosion and deposits
• Coarse grinding paste to cut and fine grinding paste to finish
• Silicon carbide and lithium based grease
• Ideal for use with Laser Valve Grinders, Part No 3524 Set of grinders and paste available, please see Laser Part No 6229
• Manufactured in UK

Ferdakort

• SPECS: 1oz jar of 320 grit (smoothing) lapping compound
• FUNCTION: Used for lapping the bore of a firearm, bolt face, bolt lugs and other applications where a perfect final fit or a lapped smooth surface is needed
• VERSATILITY: Offered in three grits 220 (cutting), 320 (smoothing) and 600 (polishing)
• CONVENIENT: Repeating the process using progressively finer grits will produce a significantly smoother bore
• BE PREPARED: Stir the contents if they are seperated
• GUARANTEED: This product is covered by a limited lifetime warranty provided by Wheeler. Please contact Wheeler customer service for assistance

Wheeler

• High temperature grease for lapping, grinding, sharpening and polishing metal surfaces
• Contains sharp, graded and extremely hard grains of silicone carbide
• Helps in valve grinding operations on automotive, industrial and marine engines
• Can be used to sharpen the blades of reel-type hand and power lawnmowers
• Grit on fine = 220, grit on course = 120

Versachem

• SPECS: 1oz jar of 220 grit (cutting) lapping compound
• FUNCTION: Used for lapping the bore of a firearm, bolt face, bolt lugs and other applications where a perfect final fit or a lapped smooth surface is needed
• VERSATILITY: Offered in three grits 220 (cutting), 320 (smoothing) and 600 (polishing)
• CONVENIENT: Repeating the process using progressively finer grits will produce a significantly smoother bore
• BE PREPARED: Stir the contents if they are seperated
• GUARANTEED: This product is covered by a limited lifetime warranty provided by Wheeler. Please contact Wheeler customer service for assistance

Wheeler

• FUNCTION: Used for lapping the bore of a firearm, bolt face, bolt lugs and other applications where a perfect final fit or a lapped smooth surface is needed
• VERSATILITY: Offered in three grits 220 (cutting), 320 (smoothing) and 600 (polishing)
• CONVENIENT: Repeating the process using progressively finer grits will produce a significantly smoother bore
• BE PREPARED: Stir the contents if they are seperated
• INCLUDES: Three 1 oz jars of 220 (cutting), 320 (smoothing) and 600 (polishing)
• GUARANTEED: This product is covered by a limited lifetime warranty provided by Wheeler. Please contact Wheeler customer service for assistance

Wheeler

• Aids valve grinding and seating operations
• Mixes with water to form an easy-to-use paste
• Can be used for lapping and grinding chromium
• Removes burrs, surface defects, carbon, gum and corrosion
• Suggested Applications: Seat valves, sharpen reel type lawn mowers

Permatex

• SPECS: 1oz jar of 600 grit (polishing) lapping compound
• FUNCTION: Used for lapping the bore of a firearm, bolt face, bolt lugs and other applications where a perfect final fit or a lapped smooth surface is needed
• VERSATILITY: Offered in three grits 220 (cutting), 320 (smoothing) and 600 (polishing)
• CONVENIENT: Repeating the process using progressively finer grits will produce a significantly smoother bore
• BE PREPARED: Stir the contents if they are seperated
• GUARANTEED: This product is covered by a limited lifetime warranty provided by Wheeler. Please contact Wheeler customer service for assistance

Wheeler

• 280 fine grit silicone carbide
• Ensures engine valve and valve seats are perfectly mated
• For use in valves and valve seats of gas and diesel engines
• Helps maximize power and heat transfer
• Easy application

Loctite

• Aids valve grinding and seating operations
• Mixes with water to form an easy-to-use paste
• Can be used for lapping and grinding chromium
• Removes burrs, surface defects, carbon, gum and corrosion
• Suggested Applications: Seat valves, sharpen reel type lawn mowers

Permatex