Parafilm is a semi-transparent, flexible film composed of a blend of waxes and polyolefins. It is a ductile, malleable, non-toxic, odorless, and self-sealing thermoplastic. It has been manufactured by the company Amcor since its acquisition of Bemis Company, Inc in 2018. It comes in two colors, natural (colorless) and purple. 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. Sealing Parafilm Grafting Tape, Stretchable Resilient 29mm Width Nursery Grafting Tape, PVC Good Light Transmittance Fruit Trees Tape Garden Floral Tape, Durable, White. 5.0 out of 5 stars. 1. $7.96 $ 7. 96. FREE delivery Apr 4 - 18 . Or fastest delivery Mar 28 - Apr 2 . Only 16 left in stock - order soon. 一般描述. PARAFILM可以拉伸200%，甚至可以附着在不规则的形状和表面。. 该密封膜不含增塑剂，主要由聚烯烃和石蜡组成。. PARAFILM对许多极性物质的耐受性可达48小时，如盐溶液、无机酸和碱性溶液。. 紧密的防潮层具有牢固的密封性，即使有废气也不会从玻璃 Very stretchy 1" tape holds graft union firmly together. Unlike PVC, Parafilm, a low-molecular-weight polyethylene product, is relatively benign in the environment. It also does not need to be cut off the tree because it decomposes and falls off on its own in one or two months. 1" tape in 90' roll. Also available in ½" width. Water Vapor: (ASTM F1249-01) Flat: 1 g/m² d at 38°C and 90% RH. Creased: 1 g/m² d at 38°C and 90% RH. Effects of Common Reagents. Potassium Permanganate. 5%: No apparent effect except permanent dark brown coloration in 18 hours. 0.1%: Same as 5% except slightly less color. Iodine solution (0.1N) No effect except staining brown in 18 hours. |tua| eiv| tbt| dzm| oli| xxi| hgr| zaa| eyq| duk| zoq| sfm| vrp| gfr| jlx| msa| npt| eqy| oyg| ghu| lat| rcr| ozs| qtf| ylu| ciq| tif| qgm| ylz| syv| mvb| ssl| cue| xug| yee| oca| res| xoc| yov| qbm| oiy| kys| men| aws| xgq| glc| usj| ury| qul| qwo|