Clover® Lapping Compounds

Uses         Size and Grit Selection         Abrasive Types        Carriers

Can

CLOVER LAPPING AND GRINDING COMPOUNDS are abrasive pastes for the cutting, smoothing and finishing of metal surfaces, and for the precision mating of metal parts. For over 100 years Clover Compounds have helped mechanics, tool and die makers, and machine builders create precision, silky-smooth fits in machine parts, valve seats and gear teeth.

Clover Compounds are formulated from silicon carbide abrasives. These compounds are classified by grit size; from very coarse to extremely fine. They are available in grease based formulations.

Clover Compounds supplement other metal removal techniques such as grinding, milling, boring and EDM machining. Where these techniques alone cannot achieve the required finishing, Clover Compounds are used to:



These are the part number for 1 lbs. containers.

Grade and Grit Selector Guide

Part Number

( 1 lb. can)

 GRIT Descriptions Average Particle Sizes of
Abrasive Grains
1/1000
inches		 Microns
(0.001 mm)
CL.7A 1200 EXTREMELY FINE
Polishing, High Precision Lapping		 0.12 3
CL.6A 1000 0.20 5
CL.5A 800 0.38 9
CL.4A 600 VERY FINE
For fine Polishing and Lapping		 0.56 14
CL.3A 500 0.68 17
CL.2A 400 0.90 23
CL.1A 320 FINE
For Finishing, Valve Lapping, Bearings, Dies and Gauges		 1.28 33
CL.A 280 1.75 44
CL.B 240 MEDIUM FINE
For Cylinder Lapping		 2.48 63
CL.C 220 2.6 66
CL.D 180 MEDIUM
General Purpose for controlled Metal Removal		 3.4 86
CL.NC 150 4.8 122
CL.E 120 COARSE
For the Initial "Cut"
Fast Removal of Metal		 5.6 142
CL.F 100 6.8 173
CL.G 80 15 267
CL.J 54 VERY COARSE
For Fastest Metal Removal		 18 463



The Abrasives:

Clover compounds are available with the following abrasive grains and in a range of grit sizes. See the chart for availability of grit by size.

Silicon Carbide
The preferred abrasive for fast cutting of all but the hardest and toughest metals. It will produce a smooth flat surface but not a polished one.

 




The Carriers:

Grease Mix
The most widely used carrier for Clover abrasives. It retains its texture and lubrication properties during extended lapping and leaves a rust- preventing film on lapped surfaces.

 


link to clover price list

link to barrel type lapping tools

link to boron carbide lapping compounds

link to non imbedding lapping compounds

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