Seals
A variety of seals for the protection of lab samples from contamination are available at Avantor. Secure microplate samples with films, foils, and sealing tapes; select products appropriate for ELISA, PCR, cold storage, and general incubation. Sealing mats minimize evaporation and eliminate cross-contamination. For beakers, flasks, petri dishes and other labware, choose sealing films that are heat or chemical resistant. Insure sample integrity with security seals that provide evidence of tampering. Mechanical seals are also offered.
VWR® Adhesive Sealing Strips for 8-Strip PCR Tubes
Supplier: VWR Collection
Easier to apply and remove as compared to standard moulded PCR strip caps.
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Masterflex® Smart Gasket® Sanitary Sampling Gaskets, Avantor®
Supplier: Avantor Fluid Handling
Smart Gasket lets you take samples or readings from a sanitary line.
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Masterflex® Sanitary Tri-Clamp® Sock Screen Gaskets, Avantor®
Supplier: Avantor Fluid Handling
Greater particulate capacity for higher particulate flow.
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Replacement gaskets, Nalgene®
Supplier: Thermo Fisher Scientific
Sealing gaskets, For: 83B
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Sealing film for manual application, Parafilm® M
Supplier: HEATHROW
Parafilm® M is a semi-transparent, flexible, thermoplastic film with two-way stretch. This odourless and colourless film provides a tight, moisture-proof seal.
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Cap mats and strips
Supplier: THERMO MATRIX TECHNOLOGIES
Matrix CapMats and CapStrips are engineered to maintain a strong seal at all times on tubes, microplates, and deepwell blocks. CapMats effectively seal down to –80 °C, while cap strips give the flexibility to seal individual caps or rows.
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Seal with Bore for Screw Caps, Silicone with PTFE Washer
Supplier: Lenz Laborglas
Silicone rubber sealing rings with PTFE washers.
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PELTOR™ HY80 Camelback Gel Sealing Rings
Supplier: 3M
Gel ear cushions for use on a wide variety of 3M™ PELTOR™ Headsets. These gel sealing rings features a super-thin polyurethane skin with a double-hump top face design and a silicon gel-filled bladder with a Confor™ foam backing.
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Sealing tapes, Nunc™
Supplier: Thermo Fisher Scientific
Effective sealing of all microplate formats. For storage, PCR, microscopy, culture and protection.
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Adhesive PCR film and foil seals
Supplier: Thermo Fisher Scientific
Clear polyester film, aluminium foil. Recommended for use in PCR in conjunction with a thermal cycler that has a screw-down or clip-down lid.
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Pure-Pass™ Sealing Mats for Well Plates
Supplier: Trajan Scientific and Medical
Trajan Pure-Pass™ uncoated silicone sealing mats are perfect for samples. Mats are designed to protect from leaks, contamination, and evaporation during both sampling and storage.
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Magicard™ Prima 8 Clear Laminate Patch Films
Supplier: Brady
Prima 8 Clear laminate patch film for Prima 8 laminator.
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Optical adhesive PCR/qPCR film for Piko® UTW plates
Supplier: Thermo Fisher Scientific
Clear, 24-well format Piko® PCR/qPCR film seal allows high transmission of fluorescence across the range of commonly used fluorophores. When used with a Piko® thermal cycler or PikoReal® Real-Time PCR system, sample volumes as low as 5 µl can be used with minimal evaporative loss.
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Cap sealing mats for VersiPlate 96-well PCR strip tube plates, VersiCap™ Mats
Supplier: Thermo Fisher Scientific
VersiCap™ mats are designed to seal VersiPlate 96-well PCR strip tubes, but can be used will all Thermo Scientific strip tubes and 96-well plates.
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Cap strips for Piko® UTW plates
Supplier: Thermo Fisher Scientific
These flat cap strips provide an extremely tight seal in UTW (ultra-thin walled) PCR plates. They are an ideal choice for low volume reactions where it is important to minimize vapor loss.



