Slide-Fix™ PAP Jar (Coplin-Style), PPC, Natural Body / Blue Cap, Sterile — 10/Bag Assembled
The Caplugs® Evergreen Slide-Fix™ PAP jar is a Coplin-style slide staining jar designed to hold up to 10 standard 25 × 75 mm microscope slides on edge while fully immersed in fixative, stain, or reagent. The jar body is molded from transparent Polypropylene Copolymer (PPC), providing clear visual monitoring of reagent fill level and slide position without removing the cap, while the pre-assembled blue screw cap enables instant reagent identification in color-coded histology and cytology staining protocols. Supplied sterile in 10/Bag assembled packs, part number 222-5450-B8S is a reliable workhorse for H&E, Papanicolaou, IHC, and FISH workflows.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 222-5450-B8S |
| Product Line | Slide-Fix™ |
| Product Type | PAP Jar / Coplin-Style Slide Staining Jar |
| Material | Polypropylene Copolymer (PPC) |
| Jar Body Color | Natural (transparent) |
| Cap Color | Blue |
| Closure | Blue PPC screw cap — pre-assembled |
| Slide Capacity | Up to 10 standard 25 × 75 mm microscope slides |
| Sterility | Sterile |
| Pack Size | 10/Bag Assembled |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
Applications
- H&E staining series: Sequential Coplin jars on the histology bench — the blue cap differentiates hematoxylin, eosin, alcohol, and clearing steps at a glance without mislabeling risk.
- Papanicolaou (PAP) staining: The PAP jar format was purpose-designed for cytology slide staining, accommodating a full 10-slide run per jar in the standard PAP protocol.
- Formalin fixation: PPC offers full compatibility with neutral buffered formalin for initial tissue and slide fixation steps; the screw cap contains vapors during fixation.
- Alcohol dehydration series: Color-coded caps across the Slide-Fix™ cap set allow labs to differentiate 70%, 95%, and 100% ethanol jars in a single glance.
- IHC deparaffinization and antigen retrieval: PPC tolerates xylene substitutes and heated aqueous buffers; the secure screw cap retains volatile organic vapors.
- Special stains: Masson's trichrome, PAS, Giemsa, AFB, and other multi-step protocols benefit from the 10-slide capacity and clear body for reagent-level monitoring.
- FISH hybridization and wash steps: Transparent PPC allows visual confirmation of buffer level during probe hybridization and stringency washes; color caps distinguish sequential wash jars.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Neutral buffered formalin (NBF 10%) | Excellent |
| Ethanol (70%, 95%, 100%) | Excellent |
| Hematoxylin (aqueous) | Excellent |
| Eosin (aqueous/alcoholic) | Excellent |
| Xylene substitutes (e.g., CitriSolv®, Sub-X®) | Excellent |
| IHC antibody diluents / aqueous buffers | Excellent |
| Dilute acids and bases | Excellent |
| Xylene (neat) | Limited — verify with your specific xylene substitute protocol; neat xylene is not recommended for extended contact with PPC |
| Acetone | Not recommended for prolonged contact |
Quality & Procurement
Made in USA, these Slide-Fix™ PAP jars are manufactured by Caplugs® Evergreen from FDA-compliant, BPA-free, phthalate-free, latex-free PPC resin. The sterile assembled format eliminates the need for pre-use processing, supporting compliance in clinical histology and cytology environments. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, typically same business day for stocking items, with volume and institutional pricing available for high-throughput laboratories. Labs requiring a different cap color for their color-coding scheme can source companion jars with Natural (222-5450-08S), Orange (222-5450-E8S), Green (222-5450-G8S), or Fuschia (222-5450-K8S) caps from the same Slide-Fix™ line.
Frequently Asked Questions
Are these PAP jars supplied sterile?
Yes — the Slide-Fix™ PAP jars ship sterile and pre-assembled (cap already fitted) in 10/Bag packaging, ready to use directly from the bag without additional cleaning or autoclaving.
How many slides does each jar hold?
Each jar holds up to 10 standard 25 × 75 mm microscope slides positioned on edge in the internal rack, which is the typical run size for manual histology and cytology staining protocols.
Is PPC compatible with xylene and formalin?
PPC offers excellent resistance to neutral buffered formalin, ethanol series, and xylene substitutes commonly used in histology (such as CitriSolv® or Sub-X®). Neat xylene is not recommended for extended contact; if your protocol uses neat xylene, confirm compatibility with your specific reagent before committing to a full protocol run.
What is the significance of the blue cap color?
In color-coded slide staining protocols, blue-capped jars are conventionally assigned to aqueous solutions such as hematoxylin, Scott's tap water substitute, or antibody diluent, allowing bench technicians to sequence jars correctly and reduce the risk of cross-contamination or protocol errors. The Slide-Fix™ cap set spans multiple colors so a complete staining series can be visually organized without relying solely on written labels.