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                              Quality Lapidary Equipment and Supplies Since 1946!

 

 

 

 

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SILICON CARBIDE GRIT. A man made abrasive that is hard enough to grind and sand even the toughest rocks and minerals including agate. The Silicon Carbide is available in three grit ranges for progressive smoothing of the stone to its prepolished finish. The 60/90 Grit is used for aggressive grinding and shaping of the work pieces, the 120/220 Grit is used to sand and smooth and the 500/600 Grit is used to achieve the prepolished finish. All these Silicon Carbide Grits are used with water.

Grit Size Amount Item No. Price

60/90 1 lb. 15-091 $4.70

5 lb. 15-092 $14.45

50 lb. 15-093 $75.00

120/220 1 lb. 15-094 $4.85

5 lb. 15-095 $16.25

50 lb. 15-096 $90.00

500/600 1 lb. 15-097 $6.50

5 lb. 15-098 $22.25

50 lb. 15-099 $182.00

400 graded 1 lb.

15-102

 $7.00

5 lbs.

15-103

 $32.45

 

OXY 6 PREPOLISH. A new pre-polishing abrasive that will bridge the gap between the fine silicon carbide and your polishing step.

 Item No. 15-107 1 lb. $4.75

ALUMINA G. This is a must for all rock polishing operations. A special Graves polishing agent that produces quality, polished surfaces on rocks and slabs in all lapping and tumbling operations. It is a clean, non-staining, fast acting and inexpensive way to achieve beautifully polished surfaces.

  Item No. Amount Price

15-100 1 lb. $8.14

15-101 5 lbs. $31.96

 

LUSTERITE POLISH. Many problems with polishing cabs or tumbled stones can be traced to the pre-polishing step. This fine pulverized compound is a crystalline formation at about 10,000 mesh. Use this compound before your final polish and the results will be stunning. Works extremely well in sphere making. 1 lb. package.

 Item No. 15-118 1 lb. $6.95

LUSTERITE FINAL POLISH. A pyrochemically produced compound pulverized to about 50,000 mesh, produces a polish which is unmatched in brilliance and speed. Used for the final polish of cabs, carvings and tumbled stones. This polish is not an oxide so there is much less heat generated making this polish excellent for opals and turquoise. 1 lb. package.

 Item No. 15-119 1 lb. $6.95

 

PLASTIC PELLETS. Used as a filler to properly load the tumbler. Also used to cushion the load when tumbling delicate materials in the polishing steps. Carries abrasive fines to every part of the load. Pellets separate from the load in seconds by floating. Three pounds is enough for a 10 pound load.

 Item No. 15-012 1 lb. bag $3.70

Item No. 15-013 50 lb. bag $145.00

 

CHROME OXIDE. Polishing grade powder used on a variety of gemstones. 1 pound jar.

 Item No. 18-409 1 lb. $13.95

 

TRIPOLI POWDER. Same as found in our Pro Grit Kit, use it to achieve that perfect pre-polish finish. Will speed up the polishing process.

Item No. 15-110 1 lb. $3.60

Item No. 15-110-5 5 lbs. $12.60

 

Graves Company has assembled in two convenient kit forms, the necessary ingredients to grind and polish rocks and gemstones. Each kit can be used in either the rotary or the vibratory type tumblers.

1-2-3 - GRIT KIT. Contains all the necessary ingredients to grind and polish up to 21 pounds of rock. Included in the kit is 11/2 lb. of 60/90 Grit Silicone Carbide for grinding, 1 lb. of 120/220 grit Silicon Carbide for pre-polishing and 6 oz. of Aluminum Oxide for polishing. Instructions are included with the kit.

 Item No. 15-010 1-2-3 Grit Kit $12.95

PRO - GRIT KIT. This kit contains all the necessary ingredients to achieve that professional look in your polished gems. This kit uses a seven step procedure and includes 4 ounces of each of the following Silicon Carbide Grits: For grinding, 60/90; for sanding 120/220; For prepolishing 400 and 500/600. Also included are 4 ounces of Tripoli Brown and Alumina G as well as a pound of Plastic Pellets and Gem Brightener. This kit is good for either hard or soft stones and will process up to 12 lbs. of rock. Instructions are included with each kit.

 Item No. 15-011 6 lbs. $19.95

Graves Company carries a full selection metal finishing media to speed the polishing of your precious metal creations.

Plastic Media.JPG (17014 bytes) Plastic P7 Media (tetrahedron shape 5/8" x 5/8") Provides a finer finish than the deburring media. The plastic is impregnated with a fine silica grit to give a smooth finish. Best for precious metal or custom jewelry finishing where particles of Aluminum Oxide would interfere with soldering. This media is also excellent for removing discoloration caused by annealing operations on steel and stainless steel.
  Item No. Description Price

15-030 1 lb. package $6.75

15-031 3 1/4 lb. package $19.75

15-032 50 lb. package $268.00

 

Plastic_Media.JPG (17014 bytes) Plastic P6 Media (tetrahedron shape 5/8" L x 5/8" W) This media is used in place of the P7, when a less aggressive sanding action is required. It is made with a lower concentration of silica which reduces the loss of precious metal. Use at extremely low speed. Ideally suited for non-ferrous metals.
  Item No. Description Price

15-033 1 lb. package $6.75

15-034 3 1/4 lb. package $19.75

15-035 50 lb. package $268.00

 

15-050.jpg (19146 bytes) Ceramic Cylinders (3/16" D x 1/2" L x 30o angle). This media can be used as is to remove very light burrs or as a burnishing media when used with a burnishing soap. The cylinders do not contain an abrasive so they can be used as an inactive filler or as a carrier for special size grits of Silicon Carbide, Aluminum Oxide or polishing agent.

Item No. 15-050 5 lbs. $18.00

Item No. 15-051 50 lbs. $162.00

 

15-015.jpg (15903 bytes) Ceramic Triangles (30o angle x 7/8" high x 3/4" thick). Contains Aluminum Oxide, our most aggressive media for rapid deburring of either hard or soft metals. When used on steel or stainless steel parts it is recommended that a deburring compound be used for the best results.

Item No. 15-015 5 lbs. $15.40

Item No. 15-016 50 lbs. $140.00

 

15-017.jpg (16132 bytes) Polyester Cone (9/16" high x 1/2" dia. base) Contains the same Aluminum Oxide abrasive as the ceramic triangles, however the rounded shapes make this a less aggressive media than the triangles. The cones are recommended for use on softer metals such as Aluminum, Copper or Brass or on the harder metals when a finer finish is required. A deburring compound is recommended.

Item No. 15-017 4 1/2 lbs. $15.40

Item No. 15-018 50 lbs. $140.00

Deburring Powder. A metal cleaning compound when mixed with water will keep the deburring media clean and active. This helps to increase the life of the media to provide the maximum effect during the deburring operation. This powder can also be used to inhibit rust formation when deburring steel parts. Easy to use (by dissolving 4 ounces per gallon of water) or can be added directly to the load.

 Item No. 15-028 1 lb. $3.40

Item No. 15-029 5 lbs. $12.65

Item No. 15-020 50 lbs. $240.00

Burnishing Soap. The ideal additive that gives workpieces the proper burnished look. The soap works by lubricating the parts and also provides protection against rust and tarnish formation. Comes in powder form and is dissolved 4 ounces per gallon. Can be added periodically to flow-thru systems.

 Item No. 15-061 1 lb. box $4.50

Item No. 15-062 5 lb. box $17.95

Item No. 15-063 90 lb. box $300.00

 

15-052.jpg (18246 bytes) Steel Shot. This is the recommended media when a high luster is desired on metal parts or jewelry. A burnishing soap or liquid is recommended in order to obtain the best effect. The case hardened, steel mixture of 1/8" ball cones, 1/8" diagonals and 1/16" x 9/32" pins is ideally suited for the burnishing of even the most intricate parts. This mixture is also widely used to deflash plastic pieces.

Item No. 15-052 5 lbs. $38.00

Item No. 15-053 25 lbs. $165.00

Item No. 15-054 100 lbs. $590.00

 

Stainless Steel Shot. Same characteristics as our regular steel shot but more convenient to store as it will not rust. Our mixture is designed for the best finish on a wide variety of pieces.

 Item No. 15-055 5 lbs. $109.00

Item No. 15-056 10 lbs. $199.00

Walnut Shells. Made from crushed walnut shells that have been sifted to select granules from 1/16" to 1/32" in size these clean, free flowing shells will clean and polish very lightly tarnished parts. The shells can also be used as a carrying agent for some select polishing agents such as rouge compounds.

 Item No. 15-070 1 lb. $2.50

Item No. 15-070 5 lbs. $7.50

Item No. 15-072 50 lbs. $75.00

Tumble Dry. The preferred media for metal polishing. The walnut shells are precoated with a buffing flour, bonding agent and is available with either a red or green rouge to impart a luster to the polished workpiece. Choice of the rouge is dependant on the type of metal being processed. Select the proper one for your application. Tumble Dry is also available in a clear formula which contains a waxy compound bonded to a soft media giving workpieces a very high luster. It is can be used on all metals, stones or organics for final finishing and protection against tarnishing.

Tumble Dry RED For gold, brass, or copper (contains red rouge)

Item No. 15-075 1 1/4 lbs. $6.10

Item No. 15-076 5 lbs. $23.87

Item No. 15-077 50 lbs. $203.33
Tumble Dry GREEN For silver, aluminum, stainless steel

Item No. 15-078 1 1/4 lbs. $6.10

Item No. 15-079 5 lbs. $23.87

Item No. 15-080 50 lbs. $203.33

 

 

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Last modified: May 16, 2008