Supplies

High-Quality Laboratory Supplies for Reliable Research

MIDSCI understands that the right lab supplies are the foundation of reliable research across the life sciences. When your lab relies on frequent replenishment of essential scientific supplies, we deliver the labware you need with the speed and personalized service you don’t see with big-box distributors.

From glassware and plasticware to PPE, pipette tips, test tubes, and reagent reservoirs, we offer products designed for accuracy, durability, and compliance. Whether you work in life sciences, microbiology, or pharmaceutical development, our lab essentials help you maintain efficiency without compromising quality.

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ThermalSeal® RT2 Sealing Film

Optically Transparent, Highly Conformable Adhesive, Polyester Sealing Film.
 
Designed for use with standard 96-well plates where rows must be selectively protected or accessed. Available in a smaller cut for raised-rim and non-skirted PCR plates: ThermalSeal® RT2RR 

  • Certified DNase- & RNase- free
  • Ultra-high optical clarity
  • Minimizes evaporation and cross-contamination
  • Ideal for use with flat-top and hard-shell dual component (e.g. polycarbonate / polypropylene) PCR plates
  • Not recommended for removal after thermal cycling

Application

  • qPCR
Temp. Range
  • -40°C to +120°C

Helpful Tips

  • Selection of the proper film size will minimize evaporation
  • The film should not overhang or ride up the wall of a raised-rim plate
  • More complete coverage of skirted flat-top plates will reduce evaporation in the outer wells
  • End-tab removal before thermal cycling is highly recommended

Proudly made in the USA! Click here for more made in America products!


Parafilm® M Sealing Film

 

Flexible, stretchable lab film for moisture-resistant sealing.

 

Parafilm® M Sealing Film is a trusted solution for sealing and protecting labware, widely used in scientific, medical, and industrial settings. This semi-transparent, thermoplastic film is made from a blend of polyolefins and waxes, offering two-way stretch and excellent sealing capabilities on various surfaces, including test tubes, flasks, beakers, and petri dishes.

 

With the ability to stretch over 200% of its original size, Parafilm® M conforms tightly to irregular surfaces and forms a strong, moisture-resistant barrier that prevents evaporation and contamination. It is odorless, non-toxic, and resistant to acids, alkalis, and organic solvents, making it ideal for sensitive applications.

 

Available in various sizes, Parafilm® M is an essential lab consumable for preserving sample integrity and minimizing environmental exposure.

 

Key Features

  • Forms a tight, moisture-resistant seal that adheres to glass, plastic, and metal
  • Highly stretchable, extends over 200% to fit irregular shapes
  • Resists acids, alkalis, saline solutions, and organic solvents for up to 48 hours
  • Non-toxic, odorless, and semi-transparent for safe and easy use
  • Self-sealing properties eliminate the need for adhesives or tapes
  • Prevents moisture loss and sample evaporation

Ideal for lab, industrial, and research applications.

 

Specifications
 
Item #Film WidthRoll LengthColorStretchabilityWaterproofNon-ToxicOdorless
HS234526A2 In.250 Ft.Natural200%YesYesYes
HS234526C4 In.250 Ft.Natural200%YesYesYes
HS234526B4 In.125 Ft.Natural200%YesYesYes
 

Item#:
ASSEAL


DuraSeal Sealing Film

  • Durable, heat-resistant, solvent-proof laboratory sealing film
  • Chemically resistant
  • Heat resistant & Microwave compatible
  • Tight sealing
  • Tear resistant
DuraSeal’s superior heat-resistant feature allows for containers to be incubated in boiling water baths without suffering the characteristic melting of paraffin-based alternatives. DuraSeal is polyethylene based and free of any adhesives.

DuraSeal is easy to use. There is no inter-leaf paper to strip away, just stretch the film symmetrically over a container opening and the 1.5 mil thick film contracts inwardly around the opening or neck of the container to provide a drum-tight, water-proof seal. The film can be elongated 500-800% before breakage. The film clings to itself, especially after stretching so the free edges of the film may be stretched around the container to secure the container edges.

Permeability Information

  • Oxygen = 125cc/100in2/24hrs at 23°C
  • Carbon Dioxide = 1300cc/100in2/24hrs at 23°C
  • Water Vapor = 1.0g/100in2/24hrs at 38°C and 90% R.H.

Proudly made in the USA! Click here for more made in America products!

Item#:
ASSEAL2


ILP Clear Zone and Indexed Sealing Film

  • Pre-slit “x” wells allow for in-process access of wells without damage to film
  • 2-end tabs and a white colored insert with 96 clear rings assist in film alignment
  • Easy to peel 

Indexed Seal Pre-Slit Sealing Film

SF061PP-SLT-PRT, SF083PE-W-PRT, & SF083PE-C-PRT.

Clear, pre-slit, and printed wells; designed for in-process sample access.

 

Applications: Sample protection while processing, automation with pipette tips, and sample indexing

  • Reduce pipetting errors with easy-to-read well indexing
  • Ideal for protecting samples on the benchtop while working with the plate, especially for manual procedures
  • Easy in-process access and well-indexed labeling 

Clear Zone Pre-Slit Sealing Film, 96 well PP

 

SF063PP-SLT-CZ & SF063PP-96-CZ.
 

Clear with no adhesive over well areas and designed for in-process sample access with probes and reuse automation.

 

Applications: Sample protection while processing, autosamplers, automation with probes or needles

  • Best choice for automation; Ideal for protecting samples while in process
  • Adhesive-free well areas reduce potential contact with samples and the risk of fouling probes/needles 

Specifications

Item #SF061PP-SLT-PRTSF083PE-W-PRTSF083PE-C-PRTSF063PP-SLT-CZSF063PP-96-CZ
# of Plugs96
MaterialPolypropylenePETPETPolypropylene
Adhesive MaterialAcrylic; 1.1 Mil
Liner MaterialPET (polyethylene terephthalate)
ColorClearWhiteClear
AlphanumericPrinted
CertifiedDNase-/RNase-/Pyrogen-Free
Overall Height3.1 Mil3.9 Mil3.1 Mil3.9 Mil
Adhesive ThicknessAcrylic; 1.1 Mil
Top Width3.19 In. | 81.00 mm
Top Length5.59 In. | 142.00mm
AutoclavableNo
Temp. Range-40 to 120ºC (-40 to 248ºF)
   

Item#:
ASAHEAT0P8

ILP Aluminum Sealing Film

Soft and impermeable aluminum sealing foils with medical grade acrylic adhesive.  Once applied, the seal adheres aggressively, forming a tight positive seal preventing evaporation of VOCs, sample loss in storage, drying, cross contamination, and reducing the risk of aerosols and pathogens venting.

  • Suitable for sealing all standard PCR plates, micro plates, and deep well blocks
  • Perfect for light sensitive samples
  • Easily pierced with single or multi-channel pipettors and probes
  • Withstands long term storage down to -80°C
  • Single tabbed backing paper removes easily; aluminum sheet resists rolling back

Specifications
 
Item #HSF50SF035AL
MaterialAluminum
Adhesive MaterialPolypropyleneAcrylic; 1.1mil
Liner MaterialNo LinerPolyester
ColorSilver
AlphanumericNone
Surface TreatmentNone
CertifiedDNase-/RNase-/Pyrogen-Free
Overall Height2.8 Mil1.4 Mil
Top Width3.27 In. | 83.00 mm
Top Length4.92 In. | 125.00 mm5.25 In. | 133.35 mm
AutoclavableNo
Max Temp.100ºC (212ºF)120ºC (248ºF)
Min Temp.-80ºC (-112ºF)
 

Item#:
ASADHESISEALFIL


ILP Polyester Sealing Film

Perfect for general sealing applications, prevention of cross-contamination, Elisa, incubation, and short-term storage. Our polyester films with acrylic adhesive are great general-purpose seals, ideal for sample protection. The acrylic adhesive offers a strong bond that seals tightly on polypropylene and polystyrene plates.

The paper backing of this film is scored on both ends to allow for two-handed (precise) placement on the plate. SF081PE Films have writing tabs for clear identification.

Specifications
 
Item #SF080PESF081PESF083PE
MaterialPET (polyethylene terephthalate)
Adhesive MaterialAcrylic; 1.1 MilAcrylic; 1.4 MilAcrylic; 1.1 Mil
Liner MaterialPolyesterPET
ColorClear White
AlphanumericNone
CertifiedDNase-/RNase-/Pyrogen-Free
Overall Height3.1 Mil3.9 Mil5.9 Mil
Top Width3.13 In. | 79.38 mm3.22 In. | 82.00 mm
Top Length5.75 In. | 146.05mm5.43 In. | 138.00mm
AutoclavableNo
Temp. Range- 40 to 120ºC (-40 to 248ºF)
 

Item#:
ASADHESIVEPOLSTER31


ILP Aerobic Seal Sealing Film


Non-woven Rayon, acrylic adhesive, breathable, 4.9 Mil – Sterile


Breathable sealing film made from non-woven rayon with an acrylic adhesive. Designed for aerobic applications, this 4.9 mil film allows gas exchange while maintaining a sterile barrier. Ideal for cell culture and other assays requiring ventilation.

 

Specifications
 
MaterialNon-woven Rayon Acrylic
Adhesive MaterialAcrylic; 1.1 Mil
Liner MaterialPaper
ColorWhite
AlphanumericNone
CertifiedDNase-/RNase-/Pyrogen-Free
Overall Height4.9 Mil
Adhesive ThicknessAcrylic; 1.1 Mil
Top Width3.22 In. | 82.00 mm
Top Length6.06 In. | 154.00 mm
AutoclavablePre-Sterilized
Max Temp.80ºC (176ºF)
Min Temp.-20ºC (-4ºF)
 

Item#:
ASADHESEALFLALM14


ILP Polyolefin Sealing Film 

  • Optical Seal Adhesive Sealing Film
  • Polyolefin 2.8 mil Ultra-clear for qPCR
  • 50 Films/Pack, 10 Packs/Case 

Incredible optical clarity, non-absorbing, and non-fluorescing properties of these films make them ideally suited for Real Time PCR (qPCR) and optical assay work. Featuring an inert, ultra-clear, and strong encapsulated silicone adhesive that provides extraordinary performance in demanding applications.


Encapsulated silicone greatly reduces the risk of sample contamination due to exposure to adhesive. Once the film is pressed onto the plate, the raised portion of the well penetrates the encapsulation, and a tight seal is formed on just that surface (not over the sample). This silicone seal adheres aggressively, preventing evaporation and lessening the possibility of “Edge Effect”.


The plasticized backing of this film is scored on both ends to allow for two-handed (precise) placement on the plate. Both film and adhesive maintain incredible clarity and are the choice for highly demanding manual and automated processes.

 

Specifications
 
MaterialPET (polyethylene terephthalate)
Adhesive MaterialEncapsulated Silicone; 2.0 Mil
Liner MaterialPolyester
ColorClear
AlphanumericNone
Surface TreatmentNone
CertifiedDNase-/RNase-/Pyrogen-Free
Overall Height2.8 Mil
Overall Thickness2.8 Mil
Adhesive ThicknessEncapsulated Silicone; 2.0 Mil
Top Width3.06 In. | 77.80 mm
Top Length5.56 In. | 141.27 mm
AutoclavableNo
Max Temp.100ºC (212ºF)
Min Temp.-70ºC (158ºF)
 

Item#:
ASADHESIVEPOLFIN28


ContainerSeal Sealing Tape

 

ContainerSeal is a sealing tape designed for the vast range of bottles and containers used in laboratory applications. Its unique elastomeric characteristics allow it to stretch and conform around the irregular perimeters of containers lids and covers to form a tight seal. ContainerSeal will block water vapor loss, reduce the rate of gas exchange and prevent the entry of contaminants and can be easily removed from most surfaces without leaving adhesive residue.

Proudly made in the USA! Click here for more made in America products!

  

Item#:
ASSEAL1


Titer Tops® Sealing Film

 

Reliable, pierceable microplate sealing for contamination control.

 

Titer Tops® Sealing Film provides a dependable way to seal microplates and protect samples from cross-well contamination, evaporation, and spills. These pre-cut, pierceable polyethylene films feature a strong, non-cytotoxic acrylic adhesive that is waterproof, solvent-resistant, and sterile, making them ideal for microbiology, ELISA work, PCR prep, screening assays, and general plate handling. Each 4.4 mil thick film is durable enough to stay firmly in place yet easily pierced with a pipette tip for effortless sample access.

 

Designed for convenience and accuracy, Titer Tops® include two scored end tabs that simplify film alignment and removal, even when wearing gloves. The film remains secure under demanding lab conditions, with stable performance in 100% humidity and temperatures ranging from - 40°C to 100°C. With excellent chemical resistance, thermal stability, and a writable surface for clear labeling, Titer Tops® Sealing Film ensures dependable, contamination-free microplate workflows.

 

*Not recommended for thermal cyclers.
 

Proudly made in the USA! Click here for more made in America products! 

Item#:
ASTITERTOPSF


Tunair Half-Baffle Flasks and Kits

 

Tunair Erlenmeyer Flask Systems by IBI Scientific are an innovative solution designed to enhance the growth and productivity of microbial, mammalian, and plant cell cultures. Engineered specifically for microbiology and biotechnology applications, these flasks outperform traditional Erlenmeyer flasks by offering superior oxygen absorption rates, efficient aeration, and optimal mixing. Whether used in academic research, industrial bioprocessing, or pharmaceutical production, Tunair flasks provide an exceptional environment for aerobic cultures, ensuring higher cell yields and improved growth conditions.

 

Tunair half-baffled flasks feature two internal baffles that generate a swirling motion, maximizing liquid-air interaction. This vortex effect significantly increases oxygen transfer rates, making it ideal for cultures that require high oxygen availability. The flask design promotes uniform mixing and improved microbial growth, ensuring optimal conditions for fermentation and cell culture applications. In addition to the baffled flask design, the turbo-vane cap closure further enhances aeration by maintaining consistent airflow while preventing contamination.

 

All Tunair flasks and caps are constructed of chemical-resistant polypropylene and are fully autoclavable. To clean flasks and caps, soak them in water with a mild detergent solution. Once cleaned, air-dry all components before autoclaving for complete sterilization.

 

Applications

  • Microbial Fermentation: Ideal for yeast, bacteria, and fungal cultures, where high oxygen demand is essential
  • Mammalian and Plant Cell Cultures: Supports delicate cell lines, ensuring high viability and productivity
  • Biopharmaceutical Research: Used for vaccine development, protein expression, and monoclonal antibody production
  • Academic and Industrial Biotechnology Labs: Suitable for R and D, pilot-scale, and large-scale production 

Tunair Flask Caps - Low Profile and Two-Piece Flask Cap Assemblies

 

Low Profile Flask Cap Assembly

 

Designed to fit into nearly all manufacturers' shakers, this flask cap measures only 11 In. in height, making it an excellent choice for space-saving applications. The Quick-Flip feature allows for easy and secure filter replacement, minimizing contamination risks. Constructed from polypropylene, the cap is resistant to most solvents. Flask cap is fully autoclavable, allowing for easy sterilization.

 

Two-Piece Flask Cap Assembly

 

Constructed from polypropylene, the cap is resistant to most solvents. These flask caps provide an effective seal while allowing proper gas exchange, making them essential for maintaining optimal culture conditions. Designed for repeated use, all flasks and caps are fully autoclavable, ensuring sterility between uses. Available in 300 mL and 2.5-liter sizes.

 

Tunair Cap Linings - Dri-Gauze Filter and Silicone Membrane Linings

 

Dri-Gauze Filter Cap Linings

 

Sterility control with 0.2-micron filtration that prevents contamination while allowing optimal gas exchange. They are reusable and cost-effective since each filter can be autoclaved up to six to eight times while remaining inside the flask cap assembly.

 

Silicone Membrane Cap Linings

 

Sterility control with 0.22-micron filtration that prevents contamination while allowing optimal gas exchange. Can withstand repeated autoclaving, designed to last for the lifetime of the flask. High flexibility ensures a proper fit within cap assemblies, reducing the risk of leaks or contamination.
 

Item#:
ASTUNAIRHB


Tunair Full-Baffle Flasks and Kits

 

Tunair Erlenmeyer Flask Systems by IBI Scientific are an innovative solution designed to enhance the growth and productivity of microbial, mammalian, and plant cell cultures. Engineered specifically for microbiology and biotechnology applications, these flasks outperform traditional Erlenmeyer flasks by offering superior oxygen absorption rates, efficient aeration, and optimal mixing. Whether used in academic research, industrial bioprocessing, or pharmaceutical production, Tunair flasks provide an exceptional environment for aerobic cultures, ensuring higher cell yields and improved growth conditions.

 

These flask systems offer high oxygen absorption capability, achieved through an innovative baffling and turbo-vane closure design. The Full-Baffle Shake Flask has six baffles, creating a propeller motion that promotes efficient mixing and aeration. This specialized design enhances oxygen transfer rates, ensuring that cultures receive an adequate supply of dissolved oxygen, which is crucial for cell growth and metabolic activity.

 

All Tunair flasks and caps are constructed of chemical-resistant polypropylene and are fully autoclavable. To clean flasks and caps, soak them in water with a mild detergent solution. Once cleaned, air-dry all components before autoclaving for complete sterilization.

 

Applications

  • Microbial Fermentation: Ideal for yeast, bacteria, and fungal cultures, where high oxygen demand is essential
  • Mammalian and Plant Cell Cultures: Supports delicate cell lines, ensuring high viability and productivity
  • Biopharmaceutical Research: Used for vaccine development, protein expression, and monoclonal antibody production
  • Academic and Industrial Biotechnology Labs: Suitable for R and D, pilot-scale, and large-scale production

Tunair Flask Caps - Low Profile and Two-Piece Flask Cap Assemblies

 

Low Profile Flask Cap Assembly

 

Designed to fit into nearly all manufacturers' shakers, this flask cap measures only 11 In. in height, making it an excellent choice for space-saving applications. The Quick-Flip feature allows for easy and secure filter replacement, minimizing contamination risks. Constructed from polypropylene, the cap is resistant to most solvents. Flask cap is fully autoclavable, allowing for easy sterilization.

 

Two-Piece Flask Cap Assembly

 

Constructed from polypropylene, the cap is resistant to most solvents. These flask caps provide an effective seal while allowing proper gas exchange, making them essential for maintaining optimal culture conditions. Designed for repeated use, all flasks and caps are fully autoclavable, ensuring sterility between uses. Available in 300 mL and 2.5-liter sizes.

 

Tunair Cap Linings - Dri-Gauze Filter and Silicone Membrane Linings

 

Dri-Gauze Filter Cap Linings

 

Sterility control with 0.2-micron filtration that prevents contamination while allowing optimal gas exchange. They are reusable and cost-effective since each filter can be autoclaved up to six to eight times while remaining inside the flask cap assembly.

 

Silicone Membrane Cap Linings

 

Sterility control with 0.22-micron filtration that prevents contamination while allowing optimal gas exchange. Can withstand repeated autoclaving, designed to last for the lifetime of the flask. High flexibility ensures a proper fit within cap assemblies, reducing the risk of leaks or contamination.
  

Item#:
ASTUNAIRFB
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