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MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.7 mm · Cross (+) Perforation · Non-Printed · Bulk 100 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · Cross (+) Perforation · Non-Printed · Bulk 100 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.3 mm · Cross (+) Perforation · Non-Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.5 mm · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.0 mm · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.0 mm · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø6.5 mm ILP · Ø6.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.33 mm · Septa for ABI 3100 · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Square Well pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Square Well ILP · Ø4 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Round Well pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Round Well ILP · Ø3.28 mm PCR · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 24 Square Well pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 24 Square Well ILP · Ø17.35 mm · Line (–) Perforation · Non-Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 48 Rectangular Well ILP · 17.5 × 8.5 mm · Non-Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.7 mm · Cross (+) Perforation · Non-Printed · Bulk 100 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Square Well · Ø8.4–8.7 mm ILP · Ø8.5 mm · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · Cross (+) Perforation · Non-Printed · Bulk 100 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø8.3–8.5 mm ILP · Ø8.5 mm · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.3 mm · Cross (+) Perforation · Non-Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.5 mm · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.0 mm · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø7.0–7.5 mm ILP · Ø7.0 mm · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø6.5 mm ILP · Ø6.5 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.33 mm · Septa for ABI 3100 · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · PTFE-Coated · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 96 Round Well · Ø5.3–5.7 mm (PCR & Shallow) ILP · Ø5.51 mm PCR · PTFE-Coated · Pre-Slit · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Square Well pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Square Well ILP · Ø4 mm · Line (–) Perforation · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Round Well pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 384 Round Well ILP · Ø3.28 mm PCR · Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 24 Square Well pk Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 24 Square Well ILP · Ø17.35 mm · Line (–) Perforation · Non-Printed · 50 cs Sealing Mats MTC Bio
MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP 48 Rectangular Well ILP · 17.5 × 8.5 mm · Non-Printed · 50 cs Sealing Mats MTC Bio

MTC Bio Silicone Sealing Mats – 24, 48, 96 & 384-Well, Pre-Slit & PTFE-Coated, OptiWell™ & ILP

$231.91

    Silicone sealing mats that seal airtight and reseal after every pierce. Pick your well format, then your version: OptiWell™ or ILP, scored, pre-slit, or PTFE-coated.

    • Every plate: 24, 48, 96, and 384-well mats
    • Reseals: Self-sealing cross or line perforations
    • Solvent-safe: PTFE-coated and pre-slit options
    • Reusable: Autoclavable, bleach-and-ethanol clean

See All Specs

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Fast Delivery

Most items ship same day

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Manufacturer Warranty

All products are covered by manufacturer warranty

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After-Sale Support

24/7 support

MTC Bio OptiWell D3320-5 96 square well sealing mat, silicone, printed, cross (+) perforation, ø8.4 mm

Silicone Sealing Mats That Reseal Every Well

An adhesive film seals once. A silicone mat seals, reseals, and comes off clean. Each well plug presses into its well for an airtight, liquid-tight fit that stops evaporation, cross-contamination, and aerosols, and the perforations close back up after a pipette tip or needle passes through.

Pick your mat format in the first menu by well count, shape, and diameter to match your plate, then choose your version: OptiWell™ or ILP, cross or line perforation, pre-slit, PTFE-coated for solvents, printed or non-printed, sterile or non-sterile.

24–384

Well formats

Reseals

After piercing

PTFE

Solvent-resistant option

Reusable

Bleach and ethanol clean

Why Labs Choose These Sealing Mats

Airtight Fit
Molded plugs press into each well to stop evaporation and cross-contamination.

Self-Sealing Perforations
Cross (+) or line (–) perforations reseal after a tip or needle passes through.

Pre-Slit Options
Pre-cut openings for easy pipetting and fewer mis-injections on autosamplers.

PTFE-Coated Options
An inert PTFE face for volatile solvents and chromatography work.

No Adhesives
Nothing to leach into samples; no residue on the plate.

Clean and Reusable
RNase/DNase- and pyrogen-free; OptiWell™ mats are autoclavable and rated −40 to 80 °C.

How to Choose

1. Match the Wells

Count & shape: 24, 48, 96, or 384; square or round

Diameter: Match the mat plug to your plate's well opening

Tip: Square and round mats are not interchangeable

2. Pick the Access

Cross (+) / Line (–): Scored; pierce as needed, reseals

Pre-Slit: Already cut; easiest for tips and autosampler needles

Septa: PCSEPTA-9-N for ABI 3100 sequencing plates

3. Pick the Face

Silicone: General storage, incubation, and automation

PTFE-Coated: Volatile solvents, LC/MS, and chromatography

Sterile: OptiWell™ mats in every format

4. Printed or Bulk

Printed: Alphanumeric grid for fast orientation

Non-printed bulk: ILP 100/cs for high-volume use

Tip: OptiWell™ packs are 50 mats

MTC Bio ILP SLT-RD-96-PTFE 96 round well sealing mat, ptfe-coated silicone, printed blue, pre-slit, ø8.5 mm

PTFE-Coated and Pre-Slit Mats for Autosamplers

Solvents attack bare silicone, and autosampler needles can core a solid mat. ILP PTFE-coated mats put an inert layer between the silicone and your sample, and the pre-slit versions let needles and tips pass without coring or pushing the mat into the well.

They come in square and round 96-well formats from Ø5.51 mm PCR plugs to Ø8.5 mm deep-well plugs, printed in blue for easy reading.

MTC Bio OptiWell D3320-3 96 round well sealing mat, silicone, printed, cross (+) perforation, ø8.3 mm

Mats for Every Plate We Carry

Use the well shape and diameter to match a mat to your plate. Square 2 mL plates take square mats; round-well plates take round mats sized to the well opening; PCR plates take the Ø5.3–5.7 mm mats.

Shop plates: 2 mL deep-well, 1 mL deep-well, 0.3–0.5 mL storage, 24- and 48-well, 384-well deep-well, KingFisher™, and PCR plates.

Typical Applications

  • Deep-well plate storage and incubation
  • Automated liquid handling and autosamplers
  • LC/MS and chromatography sample plates
  • Compound libraries with volatile solvents
  • PCR and sequencing plates
  • Repeated access to the same wells

Tip for a Reliable Seal

Press the mat down with a flat hand or a plate roller until every plug is fully seated, working from one corner to the opposite corner. To reuse OptiWell™ mats, wash in 10% bleach, rinse with ethanol, and let them dry. For single-use sealing, see our adhesive sealing films and foils.

Frequently Asked Questions

Are these a good alternative to Axygen® or Thermo Scientific™ Nunc™ silicone sealing mats?

Yes, for most applications. They are silicone and PTFE-coated silicone mats in 24-, 48-, 96-, and 384-well formats, with scored, pre-slit, and septa options. Match the well shape and diameter to your plate. Axygen®, Thermo Scientific™, Nunc™, and Applied Biosystems™ are trademarks of their respective owners; Blue Tiger Scientific is not affiliated.

What do the cross (+) and line (–) perforations mean?

They are the two styles of scored opening MTC Bio offers. Both let a tip or needle pass through and then reseal; choose the one your protocol or autosampler prefers.

When should I choose a PTFE-coated mat?

Choose PTFE when samples contain volatile or aggressive solvents, or for LC/MS and chromatography. The PTFE face keeps the sample off the silicone.

What is the difference between scored and pre-slit?

Scored mats are perforated but closed until pierced. Pre-slit mats are already cut through, so tips and needles pass with less force and less risk of coring.

Can I reuse the mats?

Yes. OptiWell™ mats are autoclavable and can be cleaned with a 10% bleach wash and an ethanol rinse. PTFE-coated ILP mats are also reusable and autoclavable.

Which mat fits ABI 3100 plates?

PCSEPTA-9-N is a 96-well silicone septa mat for ABI 3100 sequencing plates. Confirm the fit with your instrument manual.

    SpecificationDetail
    BrandMTC Bio OptiWell™ and ILP
    ProductSilicone and PTFE-Coated Sealing Mats
    Formats24, 48, 96, and 384 wells; square, round, and rectangular
    AccessCross (+) or line (–) perforation, pre-slit, or septa
    MaterialSilicone; PTFE-coated silicone options
    Temperature−40 to 80 °C (OptiWell™)
    SterilityOptiWell™ available sterile or non-sterile; ILP non-sterile
    CertifiedRNase/DNase- and pyrogen-free
    ReuseAutoclavable; clean with 10% bleach and ethanol rinse
    Pack50 per pack or case; ILP bulk 100 per case

    Ordering Information

    Cat. No.LineFormatDescriptionPack
    D3320-5OptiWell™96 Square WellSilicone, printed, cross (+) perforation, Ø8.4 mm50/pk
    D3320-9OptiWell™96 Square WellSilicone, printed, line (–) perforation, Ø8.4 mm50/pk
    D3320-5SOptiWell™96 Square WellSilicone, printed, cross (+) perforation, Ø8.4 mm, sterile50/pk
    D3320-9SOptiWell™96 Square WellSilicone, printed, line (–) perforation, Ø8.4 mm, sterile50/pk
    DPMATS-9-PRTILP96 Square WellSilicone, printed, line (–) perforation, Ø8.5 mm50/cs
    SLT-SQ-9-PRTILP96 Square WellSilicone, printed, pre-slit, Ø8.5 mm50/cs
    DPMATS-9-BULKILP96 Square WellSilicone, non-printed, cross (+) perforation, Ø8.7 mm100/cs
    MAT-SQ-96-PTFEILP96 Square WellPTFE-coated silicone, printed blue, line (–) perforation, Ø8.5 mm50/cs
    SLT-SQ-96-PTFEILP96 Square WellPTFE-coated silicone, printed blue, pre-slit, Ø8.5 mm50/cs
    D3320-3OptiWell™96 Round WellSilicone, printed, cross (+) perforation, Ø8.3 mm50/pk
    D3320-3SOptiWell™96 Round WellSilicone, printed, cross (+) perforation, Ø8.3 mm, sterile50/pk
    DPMATR-9-PRTILP96 Round WellSilicone, printed, line (–) perforation, Ø8.5 mm50/cs
    SLT-RD-9-PRTILP96 Round WellSilicone, printed, pre-slit, Ø8.5 mm50/cs
    DPMATR-9-BULKILP96 Round WellSilicone, non-printed, cross (+) perforation, Ø8.5 mm100/cs
    MAT-RD-96-PTFEILP96 Round WellPTFE-coated silicone, printed blue, line (–) perforation, Ø8.5 mm50/cs
    SLT-RD-96-PTFEILP96 Round WellPTFE-coated silicone, printed blue, pre-slit, Ø8.5 mm50/cs
    D3320-11OptiWell™96 Round WellSilicone, printed, line (–) perforation, Ø7.3 mm50/pk
    D3320-13OptiWell™96 Round WellSilicone, printed, cross (+) perforation, Ø7.3 mm50/pk
    D3320-11SOptiWell™96 Round WellSilicone, printed, line (–) perforation, Ø7.3 mm, sterile50/pk
    D3320-13SOptiWell™96 Round WellSilicone, printed, cross (+) perforation, Ø7.3 mm, sterile50/pk
    DPMATR-750-PRTILP96 Round WellSilicone, printed, line (–) perforation, Ø7.5 mm50/cs
    DPMATR-9I-NILP96 Round WellSilicone, non-printed, cross (+) perforation, Ø7.3 mm50/cs
    SLT-RD-750-PRTILP96 Round WellSilicone, printed, pre-slit, Ø7.5 mm50/cs
    MAT-RD-750-PTFEILP96 Round WellPTFE-coated silicone, printed blue, line (–) perforation, Ø7.0 mm50/cs
    SLT-RD-750-PTFEILP96 Round WellPTFE-coated silicone, printed blue, pre-slit, Ø7.0 mm50/cs
    DPMATR-500-PRTILP96 Round WellSilicone, printed, line (–) perforation, Ø6.5 mm50/cs
    D3320-15OptiWell™96 Round WellSilicone, printed, cross (+) perforation, Ø5.7 mm50/pk
    D3320-19OptiWell™96 Round WellSilicone, line (–) perforation, Ø5.5 mm50/pk
    D3320-15SOptiWell™96 Round WellSilicone, printed, cross (+) perforation, Ø5.7 mm, sterile50/pk
    D3320-19SOptiWell™96 Round WellSilicone, line (–) perforation, Ø5.5 mm, sterile50/pk
    PCMATR-9-PRTILP96 Round WellSilicone, printed, line (–) perforation, Ø5.51 mm, for PCR plates50/cs
    PCSEPTA-9-NILP96 Round WellSilicone septa, Ø5.33 mm, for ABI 3100 sequencing plates50/cs
    SLT-PC-9-PRTILP96 Round WellSilicone, printed, pre-slit, Ø5.51 mm, for PCR plates50/cs
    MAT-PC-96-PTFEILP96 Round WellPTFE-coated silicone, printed, line (–) perforation, Ø5.51 mm50/cs
    SLT-PC-96-PTFEILP96 Round WellPTFE-coated silicone, printed, pre-slit, Ø5.51 mm50/cs
    D3320-41OptiWell™384 Square WellSilicone, 384 square well50/pk
    D3320-41SOptiWell™384 Square WellSilicone, 384 square well, sterile50/pk
    DPMATS-3-PRTILP384 Square WellSilicone, printed, line (–) perforation, Ø4 mm50/cs
    D3320-40OptiWell™384 Round WellSilicone, 384 round well50/pk
    D3320-40SOptiWell™384 Round WellSilicone, 384 round well, sterile50/pk
    PCMATR-3-PRTILP384 Round WellSilicone, printed, Ø3.28 mm, for 384-well PCR plates50/cs
    D3320-21OptiWell™24 Square WellSilicone, 24 square well50/pk
    D3320-21SOptiWell™24 Square WellSilicone, 24 square well, sterile50/pk
    DPMATS-2-NILP24 Square WellSilicone, non-printed, line (–) perforation, Ø17.35 mm50/cs
    DPMATS-4-NILP48 Rectangular WellSilicone, non-printed, 17.5 × 8.5 mm rectangular wells50/cs

    MTC Bio Shipping and Return Policy

    At Blue Tiger Scientific, we proudly distribute authentic MTC Bio products. The following policies apply to all purchases made through our store. All return requests must be initiated with Blue Tiger Scientific before being processed by MTC Bio.

    Shipping Policy

    Orders for MTC Bio products are fulfilled and shipped directly by MTC Bio using FedEx or UPS, with FedEx Ground as the default shipping method unless otherwise specified.

    • Expedited shipping options (2-Day, Overnight) are available at an additional cost.
    • MTC Bio only ships to residential or business addresses within the United States—no PO Boxes.
    • Orders placed after business hours, weekends, or holidays will be processed the next business day, pending product and carrier availability.
    • Shipping timelines may vary based on product availability, order size, and carrier logistics.
    • Blue Tiger Scientific and MTC Bio are not responsible for carrier delays, weather-related disruptions, or unforeseen delivery issues once the order has shipped.

    Return Policy

    If a return is necessary, customers must start the process with Blue Tiger Scientific before returning any products to MTC Bio.

    • All return requests must be initiated with Blue Tiger Scientific before shipping a product back to MTC Bio.
    • Customers must obtain a Return Merchandise Authorization (RMA) number from Blue Tiger Scientific before returning any item.
    • Customers are responsible for return shipping costs unless otherwise stated.
    • Opened or used products cannot be returned—only unused items in original packaging will be accepted.
    • Unauthorized returns (without an RMA) will be refused and returned at the customer’s expense.
    • Returned items are subject to inspection, and a 20% restocking fee may be applied.
    • Refunds will cover the product cost only—shipping fees paid at the time of purchase are non-refundable.
    • Certain items, such as custom-built, special-order, or hazardous materials, may not be eligible for return.

    Important Notes

    • Some MTC Bio products are custom-made or built to order; shipping will occur once the product is ready.
    • In the event of backorders, partial shipments may be requested.
    • Occasional delays due to material shortages, import issues, or carrier problems.

Questions about a product? Ask us here.

email us here: info@bluetigerscientific.com or live chat