Roundfin Stainless Steel Reusable Histology Tissue Base Molds
1. 304 stainless steel construction — durable, corrosion-resistant reusable embedding molds that withstand daily autoclaving and paraffin processing cycles
2. Mirror-polished internal surface ensures smooth paraffin block extraction without sticking or block surface defects
3. Available in standard 15 x 15 mm, 24 x 24 mm, 30 x 30 mm, and 40 x 25 mm sizes; custom dimensions available for OEM orders
4. Beveled interior corners facilitate easy block removal and minimize paraffin block edge chipping during microtome clamping
5. Fully autoclavable at 121°C; compatible with all standard embedding centers, paraffin dispensers, and cold plates
6. CE marked; manufactured under ISO 13485 standards for clinical histopathology laboratory use
Product Overview
Roundfin Stainless Steel Reusable Histology Tissue Base Molds provide a durable, autoclavable alternative to disposable plastic embedding molds. Constructed from 304 stainless steel with a mirror-polished internal surface, these reusable molds ensure smooth paraffin block extraction and consistent block dimensions for microtome sectioning. The beveled interior corners facilitate easy block removal while the corrosion-resistant steel withstands years of daily use in busy histology laboratories.
Roundfin Stainless Steel Reusable Histology Tissue Base Molds
Key Takeaway: Roundfin Stainless Steel Tissue Base Molds — Roundfin quality, CE marked, ISO 13485 certified. Worldwide shipping with bulk pricing and OEM/ODM customization available for institutional procurement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | 304 stainless steel, fully welded and polished |
| Available Sizes | 15 x 15 mm, 24 x 24 mm, 30 x 30 mm, 40 x 25 mm (L x W x D) |
| Internal Finish | Mirror-polished for non-stick paraffin block release |
| Interior Corners | Beveled — facilitates block removal, minimizes edge chipping |
| Sterilization | Fully autoclavable at 121°C; dry heat compatible at 180°C |
| Reusability | Designed for 5+ years of daily use with proper care |
| Compatibility | All standard embedding centers, paraffin dispensers, and cold plates |
| Custom Sizes | OEM custom dimensions available for specialized embedding protocols |
Key Features
- 304 Stainless Steel Durability — Corrosion-resistant, fully welded and polished construction withstands daily autoclaving, chemical cleaning, and paraffin processing cycles for years of reliable use.
- Mirror-Polished Non-Stick Surface — The polished internal cavity ensures smooth, effortless paraffin block extraction without wax adhesion, mold-release sprays, or block surface defects.
- Beveled Interior Corners — Angled corner geometry facilitates clean block removal and reduces the risk of paraffin block edge chipping during microtome chuck clamping.
- Four Standard Sizes — 15 x 15 mm for biopsies, 24 x 24 mm and 30 x 30 mm for routine surgical specimens, and 40 x 25 mm for large tissue sections. All accommodate standard embedding rings.
- Fully Autoclavable — Withstands standard autoclave cycles at 121°C and dry heat sterilization at 180°C for complete decontamination between specimens.
- Eco-Friendly & Cost-Effective — Eliminate recurring disposable plastic mold costs; one set of stainless steel molds replaces thousands of single-use plastic molds over its service life.
FAQ
How do I clean and maintain stainless steel embedding molds?
After use, remove residual paraffin by placing molds in a 65-70°C oven or on a warming plate — the paraffin will melt and can be wiped away. Clean with xylene or a suitable paraffin solvent, followed by 70% ethanol for disinfection. For deep decontamination, autoclave at 121°C for 15 minutes. Avoid abrasive scrubbers that could scratch the mirror-polished surface. With proper care, stainless steel molds maintain their non-stick properties for 5+ years.
Are these compatible with my embedding center?
Yes. Roundfin stainless steel base molds are compatible with all standard embedding centers (Leica EG series, Thermo HistoStar, Sakura Tissue-Tek) and cold plates. The molds are designed to accommodate standard embedding rings and cassettes. The polished base sits flat on the cold plate for rapid paraffin solidification and consistent block bases.
What size mold should I use for my specimens?
Use 15 x 15 mm for endoscopic and core needle biopsies, 24 x 24 mm for routine surgical specimens (skin, GI, prostate, breast), 30 x 30 mm for larger surgical resections, and 40 x 25 mm for whole-mount or large tissue sections. The mold should provide approximately 2-3 mm of paraffin margin around the tissue on all sides for optimal microtome clamping and section ribbon formation.
Can I order custom sizes or shapes?
Yes. Roundfin offers OEM custom mold fabrication for specialized embedding protocols, non-standard cassette formats, or unique specimen geometries. Custom orders require a minimum quantity and typically have a 4-6 week lead time. Contact Roundfin with your mold specifications — including dimensions, depth, corner radius, and any special features — for a custom production quotation.
