Product Overview
Optical Clarity Meets Strong-Bond Adhesive.
PCRSEAL-OB delivers optically clear performance with a strong-bond standard adhesive — validated head-to-head on the Bio-Rad® CFX-96™ platform — with every lot functionally tested and certified for qPCR purity.
Optical Performance, Proven on Your Platform
Optically clear polyester film with consistent fluorescence transmission across the full excitation/emission spectrum used in SYBR Green, EvaGreen, FAM, ROX, and multiplex assays. Independently tested head-to-head against Bio-Rad® Microseal “B” film on a CFX-96™ system with equivalent Ct values (29.9 vs 30.1).

Overlaid comparison — Bio-Rad® CFX-96™ system · Ct 29.9 (PCRSeal) vs 30.1 (Competitor B)
Strong-Bond Adhesive for Demanding Protocols
PCRSEAL-OB uses a strong-bond standard adhesive that grips firmly on contact — ideal for demanding thermal cycling protocols, low-volume reactions, and applications where a secure seal from the moment of application is critical.
No heat sealer or applicator required. Seals cleanly with gloved hands and holds through thermal cycling from −80 °C to +120 °C without lifting, curling, or adhesive migration into wells. Peels off cleanly for downstream processing.
Compatible with all standard 96-well and 384-well plates with raised rims, including Bio-Rad HSP9601 and similar hard-shell plates. Suitable for all PCR platforms and automated plate handlers.
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.
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-OB is a functional replacement for these commonly specified films:
| Applied Biosystems® | Bio-Rad® | Excel Scientific™ |
|---|---|---|
| 4306311 | Microseal® “B” (MSB1001) | ThermalSeal™ TS-RT2-100 |
Fits all standard 96-well and 384-well plates with raised rims. PCRSEAL-OB is designed as a seamless, drop-in replacement for any of the above — compatible with CFX™, QuantStudio™, 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® and QuantStudio™ 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.