Find the right sealing film for 96-well plates to prevent evaporation, contamination, and cross-well leakage during PCR and other assays. This guide highlights five reliable options, each suited to different lab needs—from easy-tear options for gloves-on use to durable, reusable silicone mats for long workflow cycles. The top picks are ideal for researchers, technicians, and educators seeking consistent sealing performance and straightforward application.
Summary table of selected products
| Product | Best For | Key Benefit | Material/Type |
|---|---|---|---|
| PCR Plate Sealing Film for 96-Well – 5.3×3.3 inches | General PCR workflows | Precise seal across wells | Clear sealing film |
| PCR Plate Sealing Film for 96-Well Plates (130 x 80mm, Pack of 100) | Gloved-hand operation | Easy tearability and strong adhesion | Self-adhesive film |
| 100 Sheet PCR Plate Sealing Film, 96 Well Plate 83x133mm | Cost-effective bulk | High sheet count, standard size | Self-adhesive film |
| MUHWA 96 Deep Well Plates Silicone Sealing Mat | Reusable sealing solution | Airtight, chemical-resistant seal | Silicone mats |
| PCR Sealing Film Scraper (LDPE) for 96-Well Plates | Precise seal with film | Air-bubble-free sealing pressure | LDPE scraper |
PCR Plate Sealing Film for 96-Well – Clear 5.3×3.3 Inches

Best for precise, leak-free sealing in standard 96-well PCR workflows. This film is designed to fit standard 96-well plates tightly, reducing evaporation and contamination risks. The film’s universal compatibility simplifies integration into different laboratory setups, making it suitable for routine PCR runs and high-throughput testing. A potential limitation is the lack of explicit thickness or puncture-resistance data in the product description, so users with aggressive thermal cycling should verify fit and durability in their own plates.
PCR Plate Sealing Film – 96-Well Plates (130 x 80mm) Pack of 100

Best for labs needing easy-tear opening and clean adhesion while wearing gloves. This film provides good stickiness, strong sealing, and high transparency to confirm the seal status without removing the plate. It is a practical choice for routine PCR setups where quick throughput is essential. A possible caveat is that users should ensure compatibility with their specific plate brand, as exact dimensions can vary slightly between manufacturers.
100 Sheet PCR Plate Sealing Film, 96 Well Plate 83x133mm

Best for large-volume projects that require a reliable, cost-effective supply. The 83x133mm size matches standard 96-well formats, and the 100-sheet pack suits ongoing studies or teaching labs. The product description is sparse on adhesive strength specifics, so users should test for their plate materials and cycling conditions to confirm long-term integrity.
MUHWA 96 Deep Well Silicone Sealing Mat

Best for repeat-use sealing with high chemical resistance. Silicone mats provide an airtight, liquid-tight seal that minimizes evaporation and sample loss. They are ideal for storage and multi-step workflows where reusability reduces waste. A limitation is that silicone mats require proper cleaning and may not be compatible with all sample types or solvents; verify compatibility with your workflow before reuse.
PCR Sealing Film Scraper – LDPE

Best for achieving an air-bubble-free seal with 96-well plates. The LDPE scraper is designed to apply even pressure and prevent wrinkling of sealing films. It features comfortable grips and a compact size for one-handed operation. A note: this tool is a helper accessory rather than a replacement for high-quality sealing films; use it with compatible films for best results.
Buying Guide: Key Considerations For 96-Well Plate Seals
What type of seal do you need? Choose between self-adhesive sealing films, peel-off films, or reusable silicone mats based on your workflow duration, reusability needs, and exposure to solvents.
- Compatibility: Confirm plate brand and well count (96-well vs. deep-well). Look for explicit matching dimensions like 133x83mm or 130x80mm to ensure a tight fit.
- Seal integrity: Prioritize films with strong adhesion and high transparency to monitor the seal. Consider films designed to resist evaporation during thermal cycling.
- Ease of use: For gloves and rapid throughput, easy-tear options and tools like scrapers can improve efficiency and reduce handling errors.
- Durability and reuse: Silicone mats offer reusability, but require cleaning and chemical resistance. Self-adhesive films are typically single-use but can be cost-effective in bulk.
- Chemical compatibility: Ensure the material resists common lab solvents and reagents used in PCR workflows to avoid contamination or film integrity issues.
- Cost and supply: If running large experiments, consider bulk packs (e.g., 100 sheets) and compare per-sheet cost along with reliability across cycles.
Practical Comparison At A Glance
- Best for precise sealing: 5.3×3.3 inch sealing films that fit standard 96-well plates.
- Better for gloves-on use: Tearable opening films with strong adhesion and high visibility.
- Choose this if you need a budget option: Large-pack self-adhesive films with standard dimensions.
- Opt for reuse: Silicone sealing mats for repeated experiments and long-term storage.
- Use with a scrapper: LDPE scraper to ensure wrinkle-free seals and reduce air pockets.
FAQ
- Q: Are these films compatible with all 96-well plates?
A: Most are designed for standard 96-well PCR plates; check exact dimensions (133x83mm or 130x80mm) to confirm fit with your plate brand. - Q: Can sealing films prevent evaporation during PCR cycling?
A: Yes, when the film provides a tight seal and good adhesion, it reduces evaporation and contamination risks during thermal cycling. - Q: Are silicone mats reusable?
A: Yes, silicone mats are reusable after cleaning and a disinfecting rinse, though verify chemical compatibility with your samples. - Q: Do I need additional tools to seal plates?
Yes, tools like a film scraper can help apply even pressure and improve seal quality, especially for wrinkle-free application. - Q: How should I store sealing films between uses?
A: Store in a clean, dry environment away from heat and direct sunlight to preserve adhesive properties and film integrity.