Product Overview
Performance-Matched to ABI. Priced to Free Up Your Budget.
PCRSEAL-OA delivers the same optical clarity and seal integrity as Applied Biosystems® 4311971 — validated on the StepOnePlus™ platform — with every lot functionally tested and certified for qPCR purity.
Optical Performance, Proven on Your Platform
Ultraclear OPP film with consistent fluorescence transmission across the full excitation/emission spectrum used in SYBR Green, FAM, ROX, and multiplex assays. Independently tested head-to-head against Applied Biosystems® film on a StepOnePlus™ 96-well system with equivalent Ct values and tighter replicate consistency.

Side-by-side comparison — Applied Biosystems® StepOne Plus™ 96-well system
Tested Where It Counts
Every lot is manufactured in a Class 100K cleanroom, visually inspected, then put through functional qPCR testing — not just process certification. We run:
- Biological purity testing
- PCR inhibitor assays
- qPCR performance validation
- Evaporation QC
A Certificate of Analysis is then generated for that specific production lot. Most major brands certify their manufacturing process. We certify the film you actually receive.
Look up your lot-specific CoA anytime at pcrseal.com/coa — no waiting for paperwork, no chasing down documentation for audits.
Pressure-Sensitive Adhesive That Stays Put
The film is not tacky out of the package — a dual-layer pressure-sensitive adhesive system (acrylic and silicone PSA) activates when you apply firm pressure along the well rims. This gives you time to position the film precisely before committing to the seal.
No applicator or heat source is required, and the film seals cleanly with gloved hands. A sealing paddle or the PCRSealer tool can help ensure uniform pressure across all wells for maximum seal consistency.
Holds through thermal cycling from −80 °C to +120 °C without lifting, curling, or adhesive migration into wells. Peels off cleanly for downstream processing.
Every Lot Certified Pure
PCR inhibitor-free, human DNA-free, DNase/RNase-free, ATP-free, and non-pyrogenic — tested per lot, not per process run. Your lot-specific Certificate of Analysis is always available on demand through our website.
All film materials are tested and compliant with U.S. FDA 21 CFR 177.1520 3.2a, RoHS 2011/65/EU, and REACH (EC) No 1907/2006 — ensuring regulatory confidence for clinical, academic, and commercial laboratory environments.
Direct Cross-Reference
PCRSEAL-OA is a functional replacement for these commonly specified films:
| Applied Biosystems® | Bio-Rad® | Excel Scientific™ |
|---|---|---|
| 4311971 | Microseal® “C” (MSC1001) | ThermalSeal™ TSS-RTQ-100 |
Fits all standard 96-well and 384-well plates with raised rims. PCRSEAL-OA is designed as a seamless, drop-in replacement for any of the above — compatible with QuantStudio™, CFX™, and other real-time PCR platforms.
Ready to Switch?
| Option | What You Get |
|---|---|
| Sample Pack | 10 films — enough to validate on your platform |
| Standard Pack | 100 films per box |
| 5+ Boxes | Save 5% — free shipping included |
| Request a Quote | Personalized pricing to beat your current supplier |
For Research Use Only. Not intended for use in diagnostic procedures.
Applied Biosystems®, QuantStudio™, and StepOnePlus™ are trademarks of Thermo Fisher Scientific Inc. Bio-Rad®, CFX™, and Microseal® are trademarks of Bio-Rad Laboratories, Inc. Excel Scientific™ and ThermalSeal™ are trademarks of Excel Scientific, Inc. Product and brand references are provided solely for cross-reference and compatibility purposes and do not imply affiliation, endorsement, or sponsorship.