Peel-A-Way® Embedding Mold (Square - S22) is a disposable polyethylene embedding mold designed to release cleanly from solidified embedding media without the need for release agents or block trimming. The flexible mold material allows the embedded specimen to be removed intact once the embedding medium has solidified.
These square S22 molds are commonly used for plastic, frozen, and epoxy embedding workflows. Their construction supports efficient transfer of embedded samples and helps streamline specimen preparation in histology, microscopy, and materials research laboratories.
Peel-A-Way® molds are especially useful for frozen tissue applications where defrosting during transfer to a cryostat can be problematic. The mold design allows rapid block removal while minimizing handling.
Key Properties
- Disposable Peel-A-Way® embedding molds
- Square S22 format for embedding and sectioning workflows
- Flexible polyethylene construction enables clean block release
- Helps eliminate release agents and block trimming
- Supports plastic, frozen, and epoxy embedding workflows
- Product Number: 18646A
- Package size: 18646A-1 / 288 molds
- Material: Polyethylene
- Shape: Square
- Dimensions: 22 mm x 22 mm
- Depth: 20 mm
Applications
Frozen Tissue Embedding
Useful for frozen tissue embedding workflows where minimizing defrosting during transfer to a cryostat is important.
Plastic Embedding
Used in plastic embedding workflows where clean release from the solidified block is needed without additional release agents.
Epoxy Embedding
Compatible with epoxy embedding systems for laboratory sample preparation and microscopy workflows.
JB-4, GMA & MMA Embedding
Can be used with JB-4, GMA, MMA, and related embedding media in histology, microscopy, and materials preparation workflows.
Histology & Materials Research
Supports specimen preparation workflows where consistent orientation, smooth release, and efficient block handling are important.
Compatibility & Workflow Considerations
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Compatible embedding systems: Polyfreeze, JB-4, GMA, MMA, and epoxy
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Release method: Polyethylene mold peels away from the solidified embedded block
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Workflow benefit: Reduces the need for release agents and block trimming
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Format: Square S22 mold for selected embedding and sectioning workflows
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Performance factors: Final release and block quality depend on embedding medium, curing or freezing conditions, sample type, and handling technique
Evaluate mold performance under the intended embedding medium, specimen type, and downstream sectioning workflow.
Preparation Tips
- Select the mold size and geometry appropriate for the tissue, specimen, or embedded sample.
- Fill molds carefully to minimize bubbles and uneven block formation.
- Orient the specimen before the embedding medium solidifies, cures, or freezes.
- Allow the embedding medium to fully solidify, cure, or freeze before removing the mold.
- Peel the mold away from the block using controlled handling to preserve block edges and sample orientation.
- Document embedding medium, cure or freeze conditions, sample orientation, and sectioning workflow for reproducible results.
Handling & Storage
- Store in a clean, dry area before use.
- Protect unused molds from dust and contamination.
- Use clean handling practices to avoid introducing debris into the embedded block.
- Follow the handling guidance for the selected embedding medium, resin, or freezing compound.
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Frequently Asked Questions
1. What is Peel-A-Way® Embedding Mold (Square - S22) used for?
It is used for plastic, frozen, and epoxy embedding workflows where the mold needs to peel away cleanly from the solidified embedded block.
2. What does “Peel-A-Way” mean?
“Peel-A-Way” refers to the mold’s flexible polyethylene construction, which allows it to release from the hardened embedding block without release agents or cutting the mold away.
3. What embedding media can these molds be used with?
These molds can be used with Polyfreeze, JB-4, GMA, MMA, and epoxy embedding systems.
4. What are the dimensions of the S22 mold?
The S22 mold is a square polyethylene mold measuring 22 mm x 22 mm with a depth of 20 mm.
5. How many molds are included?
Product 18646A-1 is supplied as a package of 288 molds.
6. Are these molds reusable?
No. These molds are designed for single-use embedding workflows to support clean release and consistent specimen handling.
7. Are these molds useful for frozen tissue?
Yes. They are especially useful for frozen tissue workflows where defrosting during transfer to a cryostat is a concern.
8. Do I need a release agent with these molds?
No. The flexible polyethylene construction allows the mold to be removed from the embedded block without release agents or additional block trimming.
Safety & Documentation
Use clean laboratory handling practices and follow the safety guidance for the selected embedding medium, resin, or freezing compound. Refer to available product documentation and lot-specific information for additional guidance.
