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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
Parafilm M All-Purpose Laboratory FilmKeep moisture loss to a minimum and protect the integrity of your laboratory and research applications with a flexible covering for test tubes, beakers, petri dishes and more. Convenient, flexible and self sealing Parafilm M laboratory film is an essential item in healthcare, pharmaceutical and research labs. Protects test results in research, clinical and quality control labs. Watertight seal on test tubes, beakers and flasks. Resists waters, acids,
Keep moisture loss to a minimum and protect the integrity of your laboratory and research applications with a flexible covering for test tubes, beakers, petri dishes and more. Convenient, flexible and self-sealing - Parafilm® M laboratory film is an essential item in healthcare, pharmaceutical and research labs.
| Protects test results in research, clinical and quality control labs. |
|
Permeability Characteristics:
- Oxygen (ASTM 1927-98): 150 cc/m2 d at 23°C and 50 RH
- Carbon Dioxide (Modulated IR Method): 1200 cc/m2 d at 23°C and 0% RH
- Water Vapor (ASTM F1249-01): Flat: 1 g/m2 d at 38°C and 90% RH Creased: same as flat
- Note: Because of low water permeability and the insensitivity of this material to moisture vapor, it is unlikely that differences in relative humidity (RH) will make a difference in the oxygen permeability
Effects of Common Reagents:
- Hydrochloric acid conc. (12N) dil. (5N) - no apparent effect in 24 hours
- Sulfuric acid conc. (36N) dil. (5N) - no apparent effect in 24 hours
- Nitric acid conc. (16N) dil. (5N) - no apparent effect in 24 hours
- Sodium hydroxide conc. (22%) - no apparent effect in 24 hours
- Ammonium hydroxide conc. (28% NH3) - no apparent effect in 24 hours
- Potassium permanganate: 5%: no apparent effect except permanent dark brown coloration in 18 hours 0.1%: same as 5% but slightly less color Iodine solution 0.1N: no effect except brown staining in 18 hours
- Salt (NACL) solution 20%: no apparent effect in 24 hours
- Ethyl Alcohol 95%: no apparent effect except some face whitening in 24 hours
- Isopropyl alcohol 99%: no apparent effect in 24 hours
- Not recommended for use with chlorinated, non-polar aliphatic and aromatic solvents
- Film becomes soft and sticky at about 130°F to 150°F (54°C to 66°C)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Have bought a few of these over the last handful of years
Color: Red
Best toy outside of Ghonuts for heavy chewers. Even outlasts the most durable Kongs. I'd say we get about four months before our dog starts really making a dent in it and the size of the pieces he pulls off start to become larger and I should probably replace it after about six months. It's cheap enough that replacing it that often is fine.
*Important note* using squishy toys for heavy chewers is really important. They can break their teeth on hard toys like Nyla bones and things like antlers can break and cut them and damage their digestive system if they swallow the shards. It sucks because my dog loved Nyla bones and would chew off an inch a day, but I couldn't risk his teeth like that.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Finally - a tug toy my dog hasn’t destroyed!
Color: Red
This completely exceeded my expectations! My dog is roughly a year old, about 110-115lbs and a TOUGH chewer. He loved tugs toys but none of them last more than 10 minutes with him. I decided to try this because of the other reviews and price but wasn’t expecting it to last long. He’s had it almost a week and it’s still completely intact. It’s definitely heavy so it might not be best for smaller dogs but if you have a big dog/heavy chewer definitely give this a shot!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Indestructible so far
Color: Red, Color: Red
My toy destroyer has had this for almost two months now and it hasn’t taken any damage. It is big and heavy and solid. It became one of his favorites immediately and goes in and out of the house and even to bed with him.
Now if only we could find a stuffy that he can’t destroy.
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Reviewed in the United States on May 23, 2026
★★★★★ 3
MY DOG'S AREN'T INTERESTED ...
Color: Red
This is a large, heavy, hard rubber toy, so is of high quality. However, it is SO heavy that neither my 60-lb. female Boxer nor my 80-lb. male Bully will 'play' with it at all. They don't even chew on it. So, although it would probably be pretty indestructible, I have no way to verify that, since neither of my dogs show any interest at all. I've tried encouraging them, by holding on one end of it and encouraging them to grab the other end, but even that didn't work. Perhaps a much larger 'giant' breed dog would enjoy it.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Tough chewer for sure
My dog destroys toys. These are amazing, she chewys on them tell she's a slobbery mess. And they are holding strong. Glad a found these!
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Reviewed in the United States on February 10, 2026