No hay artículos en el carro
No hay artículos en el carroParafilm M roll. Una pequeña parte de esta película sellará tubos de ensayo, cubiletes, matraces, tubos de cultivo, etc. Hecho de un material semitransparente, flexible e impermeable. Resistente a la mayoría de los ácidos y alcoholes, es permeable a los gases. Mide 125 pies de largo por 4 pulgadas de ancho.
Pattrick
Comentado en México el 19 de octubre de 2022
Viejo, los primeros 20 centímetros ya no son elásticos. Más adelante ya mejora, aunque persiste la pérdida de elasticidad en comparación con uno fabricado recientemente.
Tim Carter
Comentado en el Reino Unido el 11 de abril de 2022
Nothing to dislike about the product
Bonnyns
Comentado en los Países Bajos el 17 de agosto de 2021
Ik kocht een rol van 125m maar deze was door de leverancier volledig onbruikbaar geraakt. Hierop besliste de verkoper om mij meteen een nieuw rol te sturen, waar ik hem heel dankbaar voor ben, ik ken er andere. Top product en eerlijke handelaar!! Alhoewel ik het doch nog redelijk duur vind, is het beste prijs die ik heb kunnen vinden na 2 uur online shoppen.Dus een aanrader!!En ik geef bijna nooit 5 sterren.
Mohammed Azharuddin
Comentado en India el 9 de abril de 2021
worth buying
Jesi
Comentado en México el 12 de julio de 2020
Muy buen precio, de fácil uso.
Customer
Comentado en México el 26 de noviembre de 2020
Todo muy bien y muy rápido
Kris
Comentado en Canadá el 9 de mayo de 2019
I use this as a masking tool for painting.
Julio
Comentado en México el 18 de abril de 2019
Funciona
Ernesto Hernández Mendieta
Comentado en México el 25 de octubre de 2018
Excelente producto. La entrega fue muy rápida.
Sneaky Burrito
Comentado en los Estados Unidos el 12 de julio de 2017
I have a PhD in biochemistry. I'm about five years out of the lab (I work at a patent law firm now, so I have a desk job) but I have picked up some hobbies relating to chemicals (e.g., adding patinas to metal, etching copper, etc.). Sometimes I need to do something like saturate the atmosphere of a jar with ammonia vapors, and I might even need to leave it for a few days. Well, I don't want my house smelling like ammonia! I was thinking, well, I would've used Parafilm in the lab to add an extra layer of protection. And then I realized I could probably find Parafilm on Amazon.If you are not used to this product, it is a stretchy film that does not incorporate an adhesive. It does stick to itself, which is why there's backing paper. It is easy to cut into any width of strip you want (just use a regular pair of scissors, with the Parafilm backing still attached). It is translucent. It will also form to the contours of your container as you stretch it, and once it is applied, it doesn't come loose from glass or metal or plastic or whatever until you want to take it off. (You do have to go all the way around the container so the Parafilm goes back and touches itself. Hope that makes sense. You can wrap around a few times for a better/more secure seal.)This lasts a long time even if you are not using it; in the past, I had the same roll next to my lab bench for several years without it getting brittle.It is somewhat heat-resistant. I was doing some experiments where I heated quartz test tubes to something like 260 degrees Celsius in an aluminum block, with the tops of the tubes exposed. I put rubber stoppers in the tubes and wrapped Parafilm around the outside of the stoppers (they were not the right size to bend down over the outside of the tube) to seal in gases from gas-filled balloons I'd put over the tops of the tubes. There was never a smell in the lab, although I was generating all kinds of nasty, nitrogen-containing molecules in my experiments. Anyway, my point is that this product works well even at reasonably high temperatures.We'd also use this if we were dissolving urea to make polyacrylamide gels. This takes a long time, so we'd mix our reagents in a plastic centrifuge tube, put the cap on, put Parafilm around the cap, and then set it on a rocker to dissolve. No leaks! And of course, there were dozens of other uses in the lab. Now I am using this at home to keep vapors in my mason jars and out of my garage (and/or kitchen, as the case may be).Anyway, I am always thinking of things I would like to use this on at home and my past experience has taught me that it is a very reliable product. I am happy to be able to get it here (and it is the same quality I have become accustomed to).
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