PR1MA™ Stretch Multi-Purpose Laboratory Sealing Film

Exceptional Flexibility. Superior Seal. Trusted in Labs Worldwide.

PR1MA™ Stretch Multi-Purpose Laboratory Sealing Film is a premium, transparent plastic/paraffin film designed to provide a reliable and adaptable seal for a wide variety of laboratory applications. Engineered to mold to virtually any surface, it delivers secure coverage for laboratory containers such as test tubes, centrifuge tubes, petri dishes, flasks, beakers, and bottles.

Whether you're preserving sensitive biological samples or securing vessels for transport or storage, PR1MA™ Stretch is the go-to sealing solution trusted by scientists across research, pharmaceutical, academic, and industrial laboratories.

Key Benefits & Features

• Multi-surface adaptability – Seals securely to glass, plastic, and metal surfaces
• High stretchability – Stretches up to 350% for a snug, custom fit
• Self-sealing – Sticks to itself and forms a tight wrap around irregular surfaces
• Liquid-tight barrier – Ideal as an overwrap for caps, lids, and stoppers
• Flexible and translucent – Allows for easy visual inspection of contents
• RNase & DNase free – Safe for molecular biology applications
• Latex-free – Suitable for sensitive lab environments
• Cold and heat resistant – Maintains performance in a wide range of temperatures

Advanced Formulation for Sample Integrity

PR1MA™ Stretch is composed of a proprietary blend of paraffin and polyolefins, engineered to provide a flexible moisture barrier that protects delicate samples from contamination and evaporation. While delivering an airtight seal, it still permits the exchange of essential gases like oxygen (O), carbon dioxide (CO), and water vapor (HO)—ideal for cell culture and biological sample storage.

Specifications

Material	Paraffin, Polyolefin
Temp. Range	-80°C to +58°C
Thickness	125 uM
Elongation Max.	400%

 

DryChill™ Ice-free Cooling Block

The DryChill™ cooling blocks are designed to store samples safely on the lab-bench without sample degradation due to temperature increase or fluctuation. Unlike traditional ice buckets, these blocks do not require any ice and are uniquely designed to minimize condensation, resulting in a convenient, mess-free cooling.

Each DryChill™ Cooling Block utilizes a proprietary gel refrigerant, designed to maintain cold (but not freezing) temperatures for extended time periods. Once the block temperature begins to warm, the visual indicator alerts the user by changing from purple to pink.

Four blocks are available for accepting a wide variety of commonly used research tubes and plates.

• Ice-free, stable cooling for sample tubes
• Unique design reduces condensation
• Maintains 4°C for up to +200 minutes
• 4 sizes for various tubes up to 50 mL
• Visual temperature indicator 

Specifications   
 

Temperature	~4°C for up to +230 mins.
Capacity	DC9602 - DC4020 - DC0650 - DC1215 -	96 x 0.2 mL 40 x 1.5/2.0 mL 6 x 50 mL 12 x 15 mL
Dimensions	DC9602 - DC4020 - DC0650 - DC1215 -	5.9 x 4.2 x 2.8 in. 14.7 x 10.5 x 7 cm 5.9 x 4.2 x 3.8 in. 14.7 x 10.5 x 9.6 cm
Weight	2.2 lbs
Warranty	2 Years

 
 

Laboratory Stools

Versatile, ergonomic, and built for durability, the Rutledge Vinyl Stool Collection offers a comprehensive range of desk stools to meet your workspace needs.

Each model features antimicrobial/antifungal Trailblazer™ Vinyl upholstery in Imperial Blue or Black, and includes a range of ergonomic adjustments such as seat height, locking seat, and back tilt options.

Choose From Multiple Height Ranges

• Desk Height: 17.25 to 23 In.
• Medium Bench Height: 19.75 to 29.75 In.
• High Bench Height: 25 to 35 In.

All stools include dual-wheel, self-braking, non-marring casters for hard floor use and a durable black nylon-reinforced fiberglass or cast-aluminum base. Foot ring options, available in black nylon or chrome, provide added comfort and support.

*Chairs shipping to California or Massachusetts may be subject to state-mandated fire treatment and may be subject to an up-charge. California Prop 65

MIDSCI™ also offers Laboratory Chair options!

Still looking for more choices? Contact us! MIDSCI™ offers a variety of chairs and stools and will work to provide you with everything you need.
 

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

Laboratory Chairs 

These ergonomic chairs are available in desk, medium, and high bench heights, with seat height ranges from 18 to 33.25 In. All models feature seat height adjustment, locking back tilt, a chrome adjustable foot ring (on bench-height models), and a durable black, nylon-reinforced fiberglass base with dual-wheel, self-braking, non-marring casters ideal for hard floors.

Choose from easy-to-clean, chemical-resistant black polyurethane or antibacterial/antifungal Trailblazer™ Vinyl in Black or Imperial Blue. Select models also include locking seat tilt and 6-way adjustable armrests for enhanced comfort and support.

• Adjustable to fit most body types and workstations.
• Arms: 6-way adjustable arm rests.
• Back Rest: With lumbar support. Constructed of highly durable molded polyurethane foam cushioning.
• Casters: Add 2 inches of height to the chair
• Covering: Easily cleaned antibacterial/antimicrobial vinyl
• Seat: Contoured waterfall seat cushion. Constructed of highly durable molded polyurethane foam cushioning
• Tile: Provides 8° forward and 3° backward locking tilt

*Chairs shipping to California or Massachusetts may be subject to state-mandated fire treatment and may be subject to an up-charge. California Prop 65

MIDSCI™ also offers Laboratory Stools!
Still looking for more choices? Contact us! MIDSCI™ offers a variety of chairs and stools and will work to provide you with everything you need.
 

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

Drosophila Vials and Trays

Premium Fly Vials & Organizational Trays for Drosophila Research.

Our Kord-Valmark™ Drosophila Vials and Trays are the trusted choice for fruit fly research in academic, biotech, and industrial laboratories. Made in the USA, these high-quality vials are precision-molded from premium materials, including Polystyrene and Polypropylene, ensuring durability, performance, and consistency.

Available in both narrow and wide-opening formats, these straight-walled vials are ideal for easy filling, plugging, racking, and general Drosophila culturing tasks. Choose from economical tray packs or high-volume bulk packaging to meet the needs of your lab.

Keep your vials neatly organized with our cardboard tray system (PP200WT and PP300NT). Designed specifically for wide-opening fly vials, each tray comes with a partitioned insert to securely hold vials during storage or transport. Ideal for streamlined Drosophila workflows.

• Polystyrene (PS) offers excellent clarity—ideal for visual inspections. An affordable alternative to glass.
• Polypropylene (PP) options are fully autoclavable and virtually unbreakable—perfect for high-temperature or repeated-use applications.
• Tray Pack: 5 trays per case (10 x 10 layout, 500 vials total)
• Bulk Pack: 500 vials loose in bulk packaging 

Key Features

• Made from high-grade, lab-safe materials
• Available in narrow and wide diameters
• Compatible with standard plugs and vial racking systems
• Straight-walled design for consistent performance
• Choose from Polystyrene or Polypropylene construction
• Packaging options: bulk or tray-packed
• Trays available for easy vial storage and organization 

Choose the right combination of Drosophila vials and trays to support your fly research with precision, cleanliness, and convenience.

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

Media Storage Bottles

These Borosilicate Glass, General Purpose media bottles are autoclavable with permanent white imprinted graduations and marking spots.  The screw thread opening has an ID of approximately 30 MM.  The supplied cap is liner-less and both the cap and drip free ring are Polypropylene autoclavable to 140 Degrees Celsius (284 Degrees Fahrenheit).  Maximum use temperature of bottles is 450 Degrees Celsius.

Specifications
 

Item #	Capacity	Graduation Range	O.D. x Height (mm)	Qty/cs
BM0100	100 mL	20-80 mL	56 X 100	10
BM0250	250 mL	50-200 mL	70 X 138	10
BM0500	500 mL	100-400 mL	86 X 175	10
BM1000	1000 mL	100-900 mL	101 X 225	10
BM2000	2000 mL	400-1800 mL	136 X 262	4

 

DuraSeal™ Sealing Film

• Durable, heat-resistant, solvent-proof laboratory sealing film
• Chemically resistant
• Heat resistant & Microwave compatible
• Tight sealing
• Tear resistant

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.

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.

Specifications
 

Length	1,296 In. | 32.92 mm
Width	0.75 In. | 19.05 mm
Color	Yellow
U of M	Roll

 

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

• Borosilicate 3.3 hybex™ glass
• Autoclavable, reusable & breakage resistant
• Permanent enamel graduation markings
• Ideal for shaking, media prep or storage

hybex™ Erlenmeyer Flasks are manufactured from high quality, borosilicate 3.3 glass. A low coefficient of thermal expansion (3.3), provides temperature resistance that is far superior to that of standard lab glass (or soda lime glass). hybex™ glass is designed to withstand high temperatures, making them ideal for shaking applications, media preparation and long-term storage.
The standard Erlenmeyer flasks have permanent, white enamel graduations for volume measurement and a white identification box for marking or coding.

hybex™ Erlenmeyer Flasks with GL45 caps
 
For storage of media and cultures, the capped flasks include an autoclavable polypropylene cap & drip-ring. Optional cap colors are available, as well as PBT material caps for temperature applications up to 180°C. (Threads are standard GL-45 for compatibility with a wide range of cap types from various manufacturers, including phenoic caps, vented caps, etc.)

Specifications

Flasks without Caps:

Flasks with Caps: