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PTFE Petri Dish
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Vessels · Petri Dish

PTFE Petri Dish

High-purity PTFE

Manufactured from high-purity PTFE with a lid and base. The bottom features a smooth, rounded finish with no residue retention — polished surface that is non-wetting and non-stick. PTFE offers excellent high/low temperature resistance and chemical resistance. Autoclavable. Ideal for microbial culture, film formation experiments, and corrosive sample handling.

30 – 120 mmSize
40 – 130 mmDiameter
14 mmDepth
22 mmHeight

Specifications are subject to confirmation with your enquiry.

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High-purity PTFE Non-stick Surface Autoclavable Acid & Alkali Resistant

📐 Selection Guidelines: Petri dish selection primarily considers application and size requirements. Microbial culture → 60mm/90mm standard. Film formation experiments → Ultra-smooth polished surface. Trace analysis sample handling → High-purity PTFE grade. Choose size based on your experimental needs.

  • Material — High-purity PTFE, no leaching, no adsorption
  • Temp Range — -196℃ ~ 260℃
  • Chemical Resistance — Resistant to HF, aqua regia, acids, alkalis, organic solvents
  • Surface — Smooth, non-wetting, non-stick
  • Size Range — 30mm ~ 120mm
  • Sterilization — Autoclavable
We will follow up on your inquiry as soon as possible. Custom sizes supported Samples available
Specifications

Specifications

Standard specifications for PTFE Petri dishes. Items marked Customizable are available upon request.

Request custom specs
Size Diameter (mm) Depth (mm) Height (mm) Wall Thickness (mm)
30mm4014224.5
40mm5014224.5
50mm6014224.5
60mm7014224.5
70mm8014224.5
80mm9014224.5
90mm10014224.5
100mm12014224.5
120mm13014224.5

* Sizes are nominal — actual outer diameter slightly larger than nominal value.

📌 Customization Notes:
• Material Upgrade: PFA (translucent, easy content viewing)
• Surface Finish: Standard polish / Ultra-smooth polish (film formation)
• Custom specifications available upon request

Product Description

I. Overview

The PTFE Petri dish is manufactured from high-purity PTFE resin through cold pressing and high-temperature sintering. It consists of a lid and a base with a smooth, rounded bottom that retains no residue. The polished surface is non-wetting and non-stick.

PTFE offers excellent high/low temperature resistance and chemical resistance, and is autoclavable. Petri dishes are widely used for inoculation, streaking, bacterial culture, and bacterial isolation — especially for film formation experiments and corrosive sample handling.

Available in sizes from 30mm to 120mm, widely used in microbiology, materials science, pharmaceutical, and environmental testing industries.

II. Core Performance Parameters

  • Purity: High-purity PTFE with ultra-low metal leaching (Pb, U < 0.01ppb)
  • Operating Temperature: -196℃ ~ 260℃, short-term up to 300℃
  • Chemical Resistance: Resistant to HF, aqua regia, concentrated H₂SO₄, HNO₃, strong alkalis, and organic solvents
  • Surface Properties: Smooth, non-wetting, non-stick, easy to clean
  • Sterilization: Autoclave (121℃, 15-20min)

III. Material & Workmanship

Manufactured from imported high-purity PTFE resin, precision cold-pressed in molds, and sintered in high-temperature furnaces — ensuring dense structure, smooth surface, and bubble-free finish. The bottom is polished for exceptional surface flatness.

All products are assembled and packaged in cleanroom environments to ensure contamination-free surfaces.

Applications

Typical Applications

Microbial Culture

Bacterial and fungal inoculation, streaking, isolation

Film Formation

Polymer film preparation and research

Corrosive Sample Handling

Strong acid/alkali sample storage and processing

Sample Drying & Soaking

Chemical analysis pretreatment

Low Temperature Storage

Sample handling in liquid nitrogen environments

ApplicationRecommended SizeRecommended MaterialNotes
Bacterial Culture90mmPTFEAseptic technique
Fungal Culture90mm / 100mmPTFEAdequate ventilation
Polymer Film Formation30mm / 40mmPTFE (Ultra-smooth)Uniform thickness control
Corrosive Sample Handling60mm / 90mmPTFEFume hood operation
Material Drying60mm / 90mmPTFEConstant temperature drying

Selection Guide

I. By Application

ApplicationRecommended SizeRecommended Surface
Microbial Culture60mm / 90mmStandard Polish
Film Formation30mm / 40mm / 50mmUltra-smooth Polish
Trace Analysis Handling30mm / 40mmStandard Polish
Corrosive Sample Handling60mm / 90mmStandard Polish
Materials Science Research50mm / 80mmStandard Polish

II. By Size

  • 30mm ~ 40mm: Micro samples, film formation, precious samples
  • 50mm ~ 60mm: Small-scale culture, materials research
  • 70mm ~ 90mm: Routine microbial culture, standard experiments
  • 100mm ~ 120mm: Large-volume culture, batch experiments

💡 Selection Tip: Choose Petri dish size based on experimental scale and operational habits. For microbial culture, 90mm is the standard size for equipment compatibility. For film formation, smaller sizes (30mm/40mm) are recommended to save sample material and facilitate characterization.

Operation & Maintenance

User Guide

Standard operating guidelines for PTFE Petri dishes. Proper use and maintenance significantly extend product life and ensure laboratory safety.

03

I. Pre-use Preparation

  • Inspect the dish for damage and ensure the surface is smooth
  • Clean with ultrapure water or alcohol and dry
  • For sterile applications, autoclave (121℃, 15-20min)
  • For trace analysis, soak in 10% nitric acid for 24 hours, rinse thoroughly with ultrapure water, and dry
04

II. Media Preparation

  1. Pour sterilized media into the dish to a thickness of 3-5mm
  2. Allow the media to solidify before use
  3. Keep media temperature ≤ 60℃ to avoid thermal damage to the dish
05

III. Inoculation

  • Under sterile conditions (laminar flow hood), inoculate using a loop or pipette
  • Use the streaking method for single colony isolation
  • Cover the dish and label with sample information
06

IV. Incubation Conditions

  • Set temperature based on organism type (typically 25-37℃)
  • PTFE dishes tolerate high temperatures, but monitor media evaporation
  • Invert the dish during incubation to prevent condensation from dripping onto the media surface
06

V. Cleaning & Maintenance

  • Routine Cleaning: Clean promptly after use with detergent and a soft cloth or sponge
  • Stubborn Residues: Soak in hot water to dissolve media residues
  • Sterilization: Autoclave (121℃, 15-20min)
  • Important: Do not use hard brushes or abrasives that may scratch the surface

💡 From a Seasoned Lab Technician: "The non-stick surface is PTFE's biggest advantage" — colonies and media residues do not adhere, making cleaning easy. For film formation, PTFE's non-stick properties allow intact film peeling without damage.
During incubation, do not completely seal the lid to the base — leave a small gap for gas exchange (unless using vented membranes).
PTFE conducts heat slowly — allow media to cool naturally at room temperature to avoid excessive condensation from rapid cooling.

Care & Notes

Show care & notes

⚠️ Safety & Compliance Checklist

Aseptic Technique

Microbial culture operations must be performed in a laminar flow hood

Biosafety

Pathogenic organism handling requires a biosafety cabinet and compliance with biosafety regulations

Chemical Safety

Wear safety goggles, lab coat, and acid/alkali resistant gloves when handling corrosive samples

Waste Disposal

Used dishes should be disposed of according to biological or chemical waste regulations

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PTFE Petri DishSize 30 – 120 mm Get a Quote