Molds,
Chucks, and Holders
Butler
Block Trimer
A precision made device to aid in hand trimming resin tissue blocks to the desired shape for ultramicrotomy. The knurled knife guide swivels to help the trimming blade to cut the sides of the block. May be utilized with any stereomicroscope with epi-illumination. The trimmer is supplied with a standard chuck to accommodate the block size 00. A flat embedding mold adapter is available as an option. (Stain Technology, Vol. 49, No 4: pp. 129-132, 1974)
| 69945-01 | BUTLER Block Trimming | each | 375.00 |  |
Chucks, Block Holders and Molding
Cup Trays
1. Aluminum Chucks
Machined from solid Aluminum. They come with set screws and a hex key.
| 70174-10 | ABH-JB Chucks for Hacker, A/O Reichert rotary and Autocut, JB-4 and JB-4A, LKB Ultratomes and Shandon Hypercut. Stem measures 11 x 11 mm | each | 50.00 | |
| 70174-14 | ABH-LBK Huxley Chuck. Stem measures 11 x 25 mm | each | 72.00 | |
| 70174-20 | ABH-JBA Chuck with a three point recessed block holder attachment: for LKB Histo Range and Reichert Super-Cut in addition to microtomes using ABH-JB chucks (#70174-10). Stem measures 11 x 11 mm | each | 76.00 | |
2.Polyethylene Molds - Individual
Molded from polyethylene, three popular sizes are available to meet your needs. These Individual Molds can be used with EBH2 Block Holders, #70175-50, 70175-60, or with colored stubs 70175-70.
Aluminum Embedding Tray is available with 6-position to hold these Individual Mold during polymerization. Comes with anodized blue and natural color.
Suitable for JB-4®, JB-4-Plus®, Immuno-Bed, LR White, LR Gold® or Paraffin embedding.
| 70177-12 | Individual Mold, 12 x 8 mm | 100/pack | 95.00 | |
| 70177-16 | Individual Mold, 16 x 8 mm | 100/pack | 95.00 | |
| 70177-19 | Individual Mold, 19 x13 mm | 100/pack | 95.00 | |
| 70178-04 | Embedding Tray, Aluminum, (2 Blue & 2 Natural colors) | 4/pack | 130.00 | |
3. EBH-2 Block Holder
Molded from hard plastic. EMS# 70175-50, 6m thick is shown to the right.
- Easy to store block holders attached to Aluminum chucks (ABH)
- Frosted surface for easy marking.
- Large center hole prevents bubble formation.
| 70175-40 | 4mm Thin Embedding Stubs | 100/pack | 275.00 | |
| 70175-50 | 6mm Thick Embedding Stubs (shown above) | 50/pack | 104.00 | |
| 70175-60 | 10mm Thick Embedding Stubs, Mixed Colors | 100/pack | 275.00 | |
4. Molding Cup Tray
These polyethylene trays are ideal for casting specimen blocks embedded with JB-4 or equivalents and are used with our block holders and chucks shown above.
| Catalog # | Molding Cup Size | Cavities | Pk | Price | |
| 70176-10 | 6x12x5mm | 20 | each | 54.00 | |
| 70176-15 | 12x16x5mm | 20 | each | 54.00 | |
| 70176-20 | 6x8x5mm Hexagon | 9 | 3/pk | 63.00 | |
| 70176-25 | 2x15x5mm | 9 | 3/pk | 63.00 | |
| 70176-30 | 13x19x5mm | 9 | 3/pk | 64.00 | |
Ultramicrotomy Chucks
Precision machined from aluminum. These special chucks are made to accommodate small specimen blocks, which have been polymerized in Eppendorf tubes. In addition, we also have chucks that hold all sizes of flat embedding blocks (fitting all Leica and RMC instruments) ,and chucks for LKB instruments.
| 69990 | Flat embedding Chuck | each | 390.00 | |
| 69991 | LKB Chuck | each | 399.00 | |
| 69992 | Eppendorf Chuck for RMC | each | 400.00 | |
| 69993 | Eppendorf Chuck for LEICA | each | 400.00 | |
PTFE Embedding Mold
Machined from PTFE block. This mold offers flat embedding for most resins, including LR White®, LR Gold®, JB-4, Immuno-Bed and Lowicryl®. This PTFE Flat Embedding Mold can be used for both UV/low temperature and thermal cure, and may be used as a substitution for the silicone molds. The individual cavities are pre shaped to reduce block trimming.
For curing anaerobic material, we recommend using Aclar® film, cut-to-size of the mold and lower on top of the mold after you ‘just over-fill’ the cavities with embedding resin. Due to the flexibility of the PTFE, you just bent the mold to pop out the cured resin blocks. After all the cast blocks have been removed, reinsert the mold to its holder to re-shape the mold. The mold holder is machined from aluminum and anodized black.
Mold with 18 cavities, each cavity measures 5mm W x 14mmL x 4mm Deep
Overall mold measures: 5 ½” x 3” x ¼” (140x50x8mm)
Mold is available as a set (includes one PTFE mold and one aluminum holder).
| 70143 | PTFE Flat Embedding Mold, set | each | $150.00 | |
| 70143-R | PTFE Flat Embedding Mold only | each | $120.00 | |
Stepped Microtome Embedding Mold
EMS Embedding Mold is a new mold designed with Michael J. Dykstra Ph.D. from North Carolina State University Department of Veterinary Medicine. This Mold produces blocks of the best dimension to be held securely by Reichert/Leica Ultracut stepped microtome chucks. There are 24 cavities and the depth of each cavity is 4mm which will prevent breakage of the blocks during razor blade trimming.
Mold Measurements: 3 3⁄8" x 3" (85 x 77mm)
Cavity Measurements: 15mmx 7mm x 4mm deep
Ordering
| 70907 | Embedding Mold-Dykstra | each | 12.00 | |
Chien Silicone Universal-Mold
A two-directional mold that allows for single embedded specimens to be sectioned both laterally and transversely . Tissues to be embedded are accurately trimmed and placed so that both sides of the tissue are against both edges of the cavity tip.
Chien, K., et al. (1985) Proc. Ann. EMSA Meeting 43, 460
| 70140 | Chien Silicone Mold | each | 19.00 | |
| 70141 | Chien Silicone Mold | 10/lot | 182.00 | |
Capsule Molds
Our molds are made from the strongest possible silicone rubber providing extremely high tear resistance. They are all reusable and produce embedding blocks of numerous shapes and sizes with a wide variety of tips. We also offer a mold which produces blocks to be used for re-embedding. Choose the one that best suits your embedding needs!
| 70150 | Capsule Molds Type A: 10 cavities, 8mm diameter body, 5mm diameter tip, 11mm height, tapered tip. | each | 13.00 | |
| 70160 | Capsule Molds Type B: 12 cavities, 8mm diameterbody, 5mm diameter tip 16mm height, tapered tip. | each | 17.00 | |
| 70161 | Capsule Molds Type C: 12 cavities cylindrical shapes, 8mm diameter 16mm height, flat tip. | each | 17.00 | |
The Embedding Capsule Substitute:
This 24 cavity mold produces a block similar to the embedding capsule block but with the following advantages: * Resin polymerizes better in silicone rubber than in polypropylene or polyethylene - the rubber heats more evenly and retains the heat better than in plastic.
- It is easier to see inside the well when centering the specimen in the tip.
- It is easier to remove the block from the well. There is no need for razor blades or press devices.
- The finished blocks have finer tips so when you trim deeper into the block the face doesn't increase in size rapidly; therefore, constant retrimming is not necessary
| 70165 | The Embedding Capsule Substitute | each | 22.00 | |
The Mold for Long Tissues:
This mold accommo dates longer pieces of tissues (muscle, skin biopsies, and many plant specimens)
Advantages:
- Easy to embed long specimens and orient them properly. The tissues lie flat in the well; therefore, no horizontal trimming is needed.
- It is ideal for any specimen that needs immediate sectioning (e.g. cell monolayer). 24 cavities
| 70166 | The Mold for Long Tissues | each | 22.00 | |
The Cell Culture Mold:
This mold is designed primarily for embedding cell culture specimens grown either directly on the bottom of a dish or onthe filter when cross sections of the cells are needed:
- Cells grown on petri dishes are cut into strips just before the propylene oxide dehydration step; when Propylene Oxide is added, the strips lift right off the bottom.
- When the strips are ready for embedment, they are rolled on an applicator stick into a wad and gently lowered into the well (the strips should not float).
Advantages:
- Many cells can be examined in cross section.
- There is no need for trimming - sectioning can begin immediately.
- The curved side makes the tip very strong in spite of its thinness.
- Easy detection of a strip of cells.
- The label is placed on the round part so as not to interfere with the specimen.
- 24 cavities.
| 70167 | The Cell Culture Mold | each | 22.00 | |
Chang Monolayer Molds
Designed by Dr. J.P. Chang for the embedding of a monolayer of cells. This specially designed mold has proven useful in the processing of frozen sections, ascite cells, fresh imprints, as well as blood and marrow smears. J. of Ultrastructural Res., 37, 370 (1971).
| 70910 | Chang Mold 12 cavities, 20x10x1mm | each | 10.00 | |
| 70920 | Chang Mold 9 cavities, 20x20x1mm | each | 10.00 | |
Flat Embedding Molds
A clear silicone rubber with very high tear strength. It can be reused more times than the conventional silicone molds. It is resistant to most epoxy resins and its clear base allows positioning of the specimen lighted from beneath.
Single Tapered Ends
| 70900 | Standard flat embedding mold, 21 numbered cavities measures: 14mm(L)x5mm(W)x4mm(D). (Clear silicone) | each | 10.00 | |
| 70901 | Same as #70900, but each of the 21 numbered cavities measures: 14mm(L)x5mm(W)x6mm(D). (White silicone) | each | 10.00 | |
| 70902 | Same as #70900, but each of the 21 numbered cavities measures: 14mm(L)x5mm(W)x3mm(D). (White silicone) | each | 10.00 | |
Small Flat Embedding Mold
Made from clear silicone, the overall measurements are 1.65” x 3” with 12 cavities. Each cavity measures 0.427”(L) x 0.25”(W) x 0.156” Deep (10mmL x 6mmW x 4mm Deep). This mold produces 12 embedding blocks with tapered ends.
| 70903 | Small Flat Embedding Mold | each | 9.00 | |
Double Tapered Ends
A standard flat embedding mold where both ends are tapered. This enables you to embed specimens in both ends of each casting. Made from white silicone, 21 numbered cavities, each cavity measuring: 14mm(L)x4mm(W)x4mm(D)
| 70870 | Double Tapered Ends Mold | each | 10.00 | |
Triple Tapered Ends
A new design with 10 triple numbered, tapered tip cavities to save you time and handling. Holds firmly in a chuck during trimming or sectioning. Made from white silicone, each cavity measures 8mm from tip to center, 5mm deep.
| 70875 | Triple Tapered Ends Mold | each | 16.50 | |
Plastic Flat Embedding Mold
- Injected molded polyethylene.
- Resistant to most embedding materials.
- Easy peeled-off the blocks.
Mold fits perfectly inside the cocoon box BE8 (64300-8); See Cocoon Box section.
When the mold and the box BE8 are used together, the set allows for the use of oxygen-prohibited embedding materials (Ie: LR White) to be polymerized in a flat orientation. These molds are reusable. Each cavity measures 12mm(L) x 5mm(W) x 3.5mm Deep. Overall mold measures: 94 x 56 x 14mm.
| 70905-01 | EMS Molded Flat Embedding Mold | each | 7.80 |  |
| 70905-12 | EMS Molded Flat Embedding Mold | 12/pk | 77.00 | |
Flat Embedding For Acrylics
No more stickiness with new storage box Acrylic resins are no longer a challenge for flat embedding. In combination with the Cocoon box, which withstands temperatures up to 70 Degrees C, and our flat embedding molds flat embedding of acrylic resins (LR Gold, Lowicryls, etc.) are now possible. Oxygen is no longer an issue with our new Cocoon Boxes. These molds can be used for all resins except LR white.
| 70900-CB | 4mm Flat Embedding Mold w/Cocoon Box | set | 12.50 | |
| 70901-CB | 6mm Flat Embedding Mold w/Cocoon Box | set | 12.50 | |
| 70902-CB | 3mm Flat Embedding Mold w/Cocoon Box | set | 12.50 | |
| 70870-CB | Double End Flat Embedding Mold w/ Cocoon Box | set | 12.50 | |
BEEM®*Flat Embedding Molds
Molded from polyethylene. The critical surfaces of the mold are transparent, facilitating accurate specimen orientation through bottom illumination. Molds are reusable and each mold is supplied with a protective box.
The cavity measures: 12mm(L) x 5mm(W) x 3mm(D)
Overall mold measures: 52mm(L) x 40mm(W) x 5mm(H)
Storage box measures: 21/3"(L)x1¾"(W)x½"(H)
(57x45x12.5mm)
| 70904-01 | BEEM® Flat Embedding Mold | each | 8.50 | |
| 70904-12 | BEEM® Flat Embedding Mold | 12/pk | 84.00 | |
*BEEM® Is A Registered Trademark of Better Equipment For Electron Microscopy, Inc
Tissue
Culture Monolayer Embedding Mold: Thompson Embedding Mold
This invention is a mold used for embedding mammalian cells in monolayer culture in preparation of sectioning for light or electron microscopy. Tissue culture monolayer embedding molds eliminate the need for traditional BEEM® capsules. The improved molds can be used to transfer the majority of cells from the entire surface of a cover slip to avoid losses of large amounts of cellular information occurring only randomly. In addition, other problems such as surface blemishes caused by air entrapment associated with BEEM® capsules are eliminated.
Advantages:
- The mold yields several individual blocks of resin from a single slip-cover.
- The resin blocks fit directly into a chuck for flat specimens.
- The embedded surfaces are free from blemishes caused by entrapped air.
- The mold uses a minimum amount of resin.
| 70924 | Thompson Mold | each | 12.00 | |
| 70925 | Thompson Mold | 4/lot | 42.00 | |
Slide Duplicating
Molds
Uses a 1x3" glass slide as a base, and duplicates the slide using the resin of your choice. Tissue sections are embedded against the flat glass surface. This duplicated resin slide can be studied under the Light Microscope, then cut, remounted, resectioned, and studied under the EM. A three cavity mold, each cavity measuring: 1"(W)x3"(L)x3/32"(D). Reference & Instructions enclosed
| 70170 | Slide Duplicating Mold | each | 15.00 | |
Technical Tip
Slide Duplicating With Cover Slip Mold
The same design as above 70170 but with the addition of three round cavities which are 17mm in diameter and 1mm deep.
| 70172 | Slide Duplicating w/Cover Slip Mold | each | 17.00 | |
Disposable Flat Embedding Mold
Please see 70904-01
