Appendix C:

Materials and Supplies

Acetone

A multipurpose solvent for use in cleaning, etc. That which is available from chemical supply houses such as VWR is just too purified (and expensive) for our uses, so we buy from Douglas & Sturgess, Inc., at a rate of $30.00 per 5 gallon container.

 

Acrylic Paints

For use in painting casts. Available in various sized tubes from Amsterdam Arts, Utrecht Art Supply, or any local arts supply store.

 

Adhesives

see epoxy, cyanoacrylate, or glyptal.

 

Air Compressors

For on-demand, high pressure air, a compressed air tank system is needed. The motor runs only on demand, so the noise level is kept down, and the sir supply is pulse-free, allowing for finer control of the air stream. A large variety is available from Granger for between $150 and $2000.

 

Alcohol

A multipurpose solvent for use in painting, etc. That which is available from chemical supply houses such as VWR is just too purified (and expensive) for our uses, so we buy from Douglas & Sturgess, Inc., at a rate of $28.00 per 5 gallon container.

 

Alginate Impression Material

Get type II or Normal Set, as you will often need all the working time you can get. Available from Zahn Dental Supply for about $6.50 per 1 lb can. Add only water, no catalyst is needed.

 

Balance, triple beam

For weighing plasters, plastics, and elastomers. Ohaus® makes an affordable, magnetically damped balance with a fixed stainless steel weighing plate. Available from Cole-Palmer for $112.00. Item # G-01012-00.

 

Balance, electronic

 

Beakers

 

Beeswax

For use in molding preparation. Available from Douglas & Sturgess in 1 lb blocks. Filtered is $8.00 per block and bleached is $9.00 per block.

 

Cleaning rags

For cleaning dust, Silastic, plastilina, and other grime off of counters. Terry cloth towels and old t-shirts work well.

 

Coecal Buff Plaster

For highest quality casts use this with a gypsum hardener. Sold in 25 pound boxes for about $20.00. Made by G.C. America, available from Zahn Dental Supply.

 

Ehrlenmeyer Flasks

 

Cotton Rolls

For cast storage and mold preparation. Available from the medical section of drug and thrift stores.

 

Cotton Tipped Applicators

Available in boxes of 1000 non-sterile applicators in either the 3-inch or 6-inch length for $5.99 per box from Henry Schein Inc. Item #100-6015.

 

CutterSil® Light

Light body silicone base precision impression material. Good for quick, one- or two-cast molds. High detail-good for teeth. Also works well as a protective rubber coating for teeth while preparing specimen with airbrasive apparatus. Order from Zahn Dental Supply. It will cost about$18.00 per 140ml of rubber, plus $16.00 for 25ml of hardener, which will last for several tubes.

 

Cyanoacrylate

"Krazy Glue". For most small, permanent cast repairs. Available from any local grocery or thrift store or from Ace Hardware.

 

Dental Tools

Available from any Zahn Dental Supply or from Douglas & Sturgess, for between $6.00 and $18.00 each. Composite instruments, scalers, carvers, and Ward tools are all useful in the molding and casting lab.

 

Disposable Aprons

Very useful in keeping you relatively clean in the dirty and often hostile environment typical of a casting and molding lab.

 

Disposable Brushes

Used for mixing paints and for applying molding rubber to specimens. "Acid brushes" are a good choice due to their unbeatably low price. These are available in bulk from Atlas Welding Supply, Inc., for $15.95 per gross (about $.11 each) or $.20 each singly.

 

Disposable Monoject Syringe

Used often in both molding and casting. The best syringes for the job are the Monoject EIM #412 12 cc disposables with a curved, tapered tip. Available from Henry Schein, Inc., for $25.75 per box of 50 syringes. Item # 194-1135.

 

Disposable Vinyl or Latex Gloves

Available in boxes of 100 from any local medical supply house, or from Zahn Dental Supply or Henry Schein, Inc. for about $5.00 to $9.00 for a box of 100. Available in small, medium, and large; sometimes in split sizes.

 

Dremel Bits

For sanding, drilling, polishing, etc. Available in a variety of shapes and sizes from Granger., or Ace Hardware.

 

Dymo labels

For labeling set-up blocks, etc. Available from Ace Hardware, for about $1.50 for 1/2 inch widths and $1 for 3/8 inch widths.

 

Epoxy cements

For permanent gluing. Available in 1oz double syringes from Ace Berkeley Hardware. The 5-minute epoxy works well for most jobs.

 

Flexiboles

For pouring plaster. Dried plaster justs pops out when the bowl is flexed. Makes for easy clean up. Available from Zahn Dental Supply, or Henry Schein, Inc. Small (150 cc) costs $3.59, medium (350 cc) costs $3.99, large (600 cc) costs $5.29, and extra large (850 cc) costs $5.99.

 

Foam for cast storage

Available from a number of foam and mattress retailers. The one we have used is Famous Foam Factory. They will precut the foam to fit any drawer size. Foam 2 inches thick works for most purposes.

 

Gauze

Used for mold reinforcement. The Kling Sof-Gauze bandage by Johnson & Johnson works well because it conforms to surface features. Available from the medical section of any drug or thrift store, or from Henry Schein, Inc., for $5.99 for 12 rolls of 2 inch wide gauze.

 

Glassware

see beaker, ehrlenmeyer flask, graduated cylinder, or watch glass.

 

Glassware Drying Rack

For drying glassware and keeping clean glassware within easy reach and out of harm's way. A variety of wall mounted and countertop models are available from Cole-Palmer for $70 to $190.

 

Glyptal

Has numerous paleontological applications. Available in red and clear forms in quart and gallon containers from Beck Electric Supply. Quarts cost about $12 and gallons cost about $43.

 

Graduated Cylinder

For use in mixing mold wetting agents.

 

Gypsum Hardener

For casting with high-quality dental plasters such as Coecal. The best buy seems to be Buffalo® Stalite Special Liquid Solution at $19.00 per gallon. Whip Mix also makes a very good Gypsum Hardener for slightly more, $22.00 per gallon. Available from Zahn Dental Supply or Henry Schein, Inc.

 

Hydrocal B-11

A hard, dense, sculptable, inexpensive grey plaster used for jacketing molds and making blocks. Available from cement suppliers such as RMC Lonestar Industries, for about $25 for a 100 lb sack.

 

Hydrocal FGR-95

A hard, fiberglass-compatable white plaster useful in lay-up applications such as plaques or other two-dimensional casts when lightness and a degree of flexibility are needed. Best when mixed with water. Manufactured by U.S. Gypsum and available from cement suppliers such as RMC Lonestar Industries or from Douglas & Sturgess for about $4.50 for a 10 lb bag or about $25.00 for a 100 lb sack.

 

Hydrostone

For jacketing molds and for use wherever a soft, non-detailed inexpensive plaster is needed. Available from Douglas & Sturgess, Inc., for $4.25 for a 10 lb bag or $23.50 for a 100 lb bag.

 

Jeltrate Plus

Available from Zahn Dental Supply or Henry Schein, Inc. for $8.99 per 1 lb can. HS Item # 222-2723.

 

Krylon Crystal Clear

Can be obtained at any artist's supply store, like Amsterdam Arts, or Utrecht Art Supply, for about $6 per 11 oz. can. Catalog number 1303.

 

Krylon Workable Fixatif

Can be obtained at any artist's supply store, like Amsterdam Arts, or Utrecht Art Supply, for about $6 per 11 oz. can. Catalog number 1306.

 

Krylon Industrial Mold Release

Silicone based mold release. Good for some of the more difficult to pull molds. Be careful of over-application, which causes limited obsfucation of detail and makes blowing more difficult. Product number 1348. Available from Tap Plastics.

 

Labeling Pens

We use Micron Pigma .005 disposable rapidiographs, available for about $2.00 each from the Campus Store, Amsterdam Arts, or Utrecht Art Supply.

 

Magnabar

- For storing dental instruments, scissors, knives, and tools. Available from some hardware stores or from Henry Schein, Inc. Model XVIII is 18 inches long and costs $12.99. Item # 100-8531

 

Molding Elastomers

see alginate, Jeltrate®, Silastic®, or latex.

Needle Vise

For holding needles for fine work. Available from hardware stores such as Ace Hardware for about $10.00.

Needles

For fine cleaning and manipulation. Available in a multitude of sizes at any grocery, sewing, or drug store, such as Campus Store for a few dollars per assortment.

Paintbrushes

For painting and fine cleaning. Available from Amsterdam Arts, Utrecht Art Supply, or any local arts supply store. Prices vary widely.

Paints

- see acrylic paints, pigments, or dispersions.

Paper Containers

- For weighing, mixing, etc. Available from A.C. Paper & Supply. 16oz cups cost $75.52 per case of 1000; 32oz cups cost $57.31 per case of 500; 83oz waxed buckets cost $29.49 per case of100; and 83oz unwaxed buckets cost $31.69 per case of 100.

Paper Towels

We buy these in bulk cases of 4200 towels. A case costs $35.62 and the minimum order from A.C. Paper & Supply is $75.00. Buy towel #755A (A.C. Paper stock #766).

Paraffin

- For making plaster and paraffin reconstructions. Available from any local grocery store, or from Douglas & Sturgess. Inc., for $1.00 per 1 lb block, $12.80 per 16 lb block, and $44.00 per 64 lb block.

Permaflex® mold dressing

Pigments, Dispersions

Pigments, Powdered

- For painting, etc. Available in .5 lb to 50 lb containers from Douglas & Sturgess, Inc., for a few dollars per pound, depending on the color.

Plaster

see Coecal, Hydrocal B-11, Hydrocal FGR-95, or Hydrostone.

Plastic cups

For weighing plasters and elastomers.

Plastic Display & Storage Boxes

Available in a large variety of sizes and shapes. The most commonly used boxes in our labs are for individual tooth cast storage are known as 1 by 1's or 1 by 2's. Good prices in multiples of 100. Available from Tap Plastics.

Plastilina Modeling Clay

For set-up blocks and other molding applications. Order gray green, white, or ivory for about $6.00 per 5 lb. block. Do not order dark green or clown green! Order from Leisure Crafts.

Plexiglas

Polyethylene Wrap

For sealing set-up blocks against dust, water, and other atmospheric contaminants. Available in brand names such as "Cling Wrap" or "Saran Wrap" from a variety of local grocery stores.

Putty Knives

For cleaning lab and cutting plastilina. Available in a variety of sizes and shapes from Ace Hardware, or any local hardware store for $2 - $10 apiece.

Roller, small

Used for fine rolling on set-up blocks. Buy what is called a wall paper roller from a local hardware store such as Ace Hardware. Less than $10.00.

Rolling Pin

For rolling out plastilina. The heavy, marble ones work best. Available from local grocery, thrift, and kitchen stores, or Ace Hardware.

Rubber Straps

For banding molds closed after casting. Large, thick rubber bands, or strips of rubber cut from old bicycle tubes work well.

Sandpaper

Available from any local lumber or hardware store such as Ace Hardware, in a variety of grades of coarseness. The waterproofed variety will find the most applications in the casting and molding lab.

Silastic® RTV type E

Manufactured by Dow Corning, but available from a local distributor, K.R. Anderson Co., Inc., for $135.36 per "kit", plus tax and shipping. A "kit" consists of a 9.9 lb drum of rubber and a 1 lb can of liquid catalyst. Additional catalyst is available for $22.00 per pint.

Silastic® 732 RTV adhesive sealant

For temporary repairs of Silastic molds. Available in 3oz and 4.7oz tubes from K.R. Anderson Co. for $6.00 per 3oz tube and $8.00 per 4.7oz tube.

Spatulas, metal

Used for mixing plastics, plasters, and molding compounds. Available from Zahn Dental Supply for between $6.00 and $18.00 apiece.

Spice Rack

for organizing and storing pigments using in painting casts

Talcum Powder

We use Johnson's baby powder, buy any powdered talc will do. Available from local grocery and discount stores, or Campus Store, for about $1.50 per 9 oz bottle.

Toilet Paper

Available in bulk from A.C. Paper & Supply. One-ply is the cheapest for packing purposes. The product code for the paper we now use is 373-00120 and costs about $54 per case of 96 rolls. The minimum total order is $75.00.

Tongue Depressors

Available from any local dental supply house or from Henry Schein, Inc. Sold in packages of 500 non-sterile depressors. They cost $6.49 per box of 500. Item # 100-2416.

Toothbrushes

For general purpose cleaning. Buy a variety of stiffnesses. Available at local grocery and thrift stores, or in bulk at very good prices from Henry Schein, Inc. Bulk prices average $9.00 for 12 toothbrushes.

Trash bags

Buy the 33 gal size. Available from any local grocery store.

Trichloroethane

We use 1.1.1 trichloroethane as a solvent for Vaseline. Buy in pint jars from Shape Products Co., (Catalog #8240-1) 1 pint costs $?.??

Vacuum Jar

For use in de-airing molding rubbers.

Vacuum Jar Grease

For sealing vacuum chamber. Do not use Vaseline! Available from K.R. Anderson Co., for $9.35 per 5.3 oz tube.

Vacuum Pump

For use in de-airing molding rubber.

Vacuum Pump Oil

We use Marvac brand #RO-1000. Available from Marvac Scientific Manufacturing Co.

Vacuum Pump Repair Kit

Vacuum pumps may require servicing every few years, and it can be much cheaper and faster to order the repair kit and follow the instructions for doing it yourself. Kits are available from Marvac Scientific Manufacturing Co. for about $___.

Vaseline

For use as a separating agent. Can be bought inexpensively at any local grocery or drug store, such as Campus Store.

Vinac B-25 Beads

Watch Glasses

To cover beakers and reduce evaporation and contamination. Available from ________.

Water Color Paints

For use in painting casts. Available in liquid and solid form from Amsterdam Arts, Utrecht Art Supply, or any local arts supply store.

Waxed Paper

For laying set-up blocks on. Available in brand names such as "Waxtex", etc., from a variety of local grocery or variety stores.

Whipmix Hose Fittings

For the vacuum mixer. Can be bought directly from Whip Mix Corp., or through Zahn Dental Supply. Nipple is #5701 (about $10- comes with o-rings), Plaster trap is #5705 (about $4), Retainer Spring is #5704 (about $1).

Whipmix Hose Plaster Filters

For the vacuum mixer. Can be bought directly from Whip Mix Corp., or through Zahn Dental Supply. Item #5703 (about $1 for 6 filters).

Whipmix Hose O-rings

For the vacuum mixer. Can be bought directly from Whip Mix Corp., or through Zahn Dental Supply. O-rings #1 and #2 fit the nipple (about $4 for 6); ask for larger ones by mixer size.

Whipmix Mixing Bowls

For use in mixing and de-airing plasters for casting. Available in 5 sizes: plastic 200ml, 300ml, 500ml, and 875ml bowls for $78.00 each, and a metal 1200ml bowl for $103.50. Available from Whip Mix corp.

Whixmix Power Mixer

For use in mixing and de-airing plasters for casting. The Vacuum Power-Mixer Plus is available from Whip Mix corp., for $630.00. Comes in white, light blue, and light tan.

X-acto Knifes and blades

Available from Ace Hardware, or any local hardware store. A variety of blade shapes, handles, and accessories are available for various applications. Prices vary.

Zip-Lock Bags

Larger and sandwich-sized bags can be bought at any local grocery or thrift store. Smaller and odd-sized bags can be purchased through Chiswick, Inc. There is a minimum purchase, so be prepared to order hundreds or thousands of bags.

 

Zip ME-301 mold lubricant

Available from K.R. Anderson.

ContentsPrefaceChap. 1Chap. 2Chap. 3Chap. 4Chap. 5Chap. 6Epilogue
GlossarySafetySuppliersBibliographyMat. Specs.

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