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Pure silicone grease is widely used by the plumbing industry in faucets and seals, as well as in dental equipment. This is because it is not an ingestion hazard. Electrical utilities use silicone grease to lubricate separable elbows on lines that must endure high temperatures. Silicone greases
387:
to help it slide onto the ceramic insulator of the plug, to seal the rubber boot, and to prevent the rubber's adhesion to the ceramic. Such greases are formulated to withstand the high temperature generally associated with the areas in which spark plugs are located, and can be applied to
45:. Using this formulation, silicone grease is a translucent white viscous paste, with exact properties dependent on the type and proportion of the components. More specialized silicone greases are made from fluorinated silicones or, for low-temperature applications, PDMS containing some
392:
as well (because the contact pressure is sufficient to penetrate the grease film). Doing so on such high-pressure contact surfaces between different metals has the further advantage of sealing the contact area against electrolytes that might cause rapid deterioration of the metals by
230:
were produced by reactions of organolithium and organopotassium compounds with silicone greases or the serendipitous reaction of stannanetriol with silicone grease to afford a cage-like compound having three Sn−O−Si−O−Sn linkages in the molecule.
352:, would damage certain products, such as latex rubber and gaskets on dry-suits. It can be used to lubricate fountain pen filling mechanisms and threads. Another common use is to lubricate keyboard stabilizer wires to reduce rattle.
766:
Dugger, M. T.; Groysman, D.; Celina, M. C.; Alam, T. M.; Argibay, N.; Nation, B. L.; Prasad, S. V. (2014). "Mechanically-induced degradation of metallic sliding electrical contacts in silicone fluid at room temperature".
205:. Although silicones are normally assumed to be chemically inert, several historically significant compounds have resulted from unintended reactions with silicones. The first salts of
642:
Fulmer, Gregory R.; Miller, Alexander J. M.; Sherden, Nathaniel H.; Gottlieb, Hugo E.; Nudelman, Abraham; Stoltz, Brian M.; Bercaw, John E.; Goldberg, Karen I. (10 May 2010).
246:(TMS), the reference compound for those forms of NMR spectroscopy. As with TMS, the signal is a singlet. In H NMR, silicone grease appears at a singlet at δ = 0.07 ppm in CDCl
234:
Lubrication of an apparatus with silicone grease may result in the reaction mixture being contaminated with the grease. The impurity may be carried through purification by
527:
Haiduc, I., "Silicone Grease: A Serendipitous
Reagent for the Synthesis of Exotic Molecular and Supramolecular Compounds", Organometallics 2004, volume 23, pp. 3–8.
181:
often consists of a silicone-grease base, along with added thermally conductive fillers. It is used for heat-transfer abilities, rather than friction reduction.
644:"NMR Chemical Shifts of Trace Impurities: Common Laboratory Solvents, Organics, and Gases in Deuterated Solvents Relevant to the Organometallic Chemist"
368:, particularly those containing rubber gaskets, as a means of sealing and protecting the connector. In this context they are often referred to as
572:
Jamie S. Ritch and
Tristram Chivers (2007). "Silicon Analogues of Crown Ethers and Cryptands: A New Chapter in Host–Guest Chemistry?".
144:, without swelling or softening the rubber, but is contraindicated for silicone rubber due to these factors. It functions well as a
189:
range of approximately −40 to 200 °C (−40 to 392 °F) with some high-temperature versions extending this range slightly.
508:
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750:
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443:
466:
Thorsten
Bartels et al. "Lubricants and Lubrication" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Weinheim.
282:. Tables of impurities commonly found in NMR spectroscopy have been prepared, and such tables include silicone grease.
348:
Silicone-based lubricants are often used by consumers in applications where other common consumer lubricants, such as
335:
127:
109:
313:
101:
615:
Lucian C. Pop; et al. (2014). "Synthesis and structures of monomeric group 14 triols and their reactivity".
317:
105:
400:
Silicone grease can decompose to form an insulating layer at or next to switch contacts that experience
446:
decompression obligations. Silicone grease is used due to the risk that some non-silicone greases can
416:
industry. e.g. For lubricating components of gas pressure regulation and delivery equipment such as
140:
Silicone grease is commonly used for lubricating and preserving many types of rubber parts, such as
643:
164:
90:
57:(PTFE). Greases formulated from silicone oils with silica thickener are sometimes referred to as
306:
94:
442:, "the bends", on certain types of dive. Also, oxygen equipment between 60% and 100% is used to
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A common use of this type is in the high-voltage connection associated with gasoline-engine
412:
Silcone greases, of formulas qualified for such use, are often used for lubrication in the
365:
202:
35:
545:
Lucian C. Pop and M. Saito (2015). "Serendipitous
Reactions Involving a Silicone Grease".
197:
Silicone grease is widely used as a temporary sealant and a lubricant for interconnecting
8:
145:
822:
798:
394:
389:
242:, the methyl groups in polydimethylsiloxane display H and C chemical shifts similar to
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27:
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to distinguish them from silicone grease made with silicone oil and a soap thickener.
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substituents in place of methyl groups. Other thickeners may be used, including
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320: in this section. Unsourced material may be challenged and removed.
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Waterproof grease made by combining a silicone oil with a thickener
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404:, and contamination can cause the contacts to prematurely fail.
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769:
2014 IEEE 60th Holm
Conference on Electrical Contacts (Holm)
434:'enriched' gas mixes containing more than the usual ~21% of
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present in air as one of the ways to reduce the risk of
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Silicone grease is soluble in organic solvents such as
34:
with a thickener. Most commonly, the silicone oil is
379:, where grease is applied to the rubber boot of the
742:
Automotive
Service: Inspection, Maintenance, Repair
450:in the presence of high concentrations of oxygen.
814:
270:SO. In C NMR, it appears at δ = 1.19 ppm in CDCl
148:and lubricant on non-metal-metal contact areas.
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108:. Unsourced material may be challenged and
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732:
336:Learn how and when to remove this message
128:Learn how and when to remove this message
192:
728:. Mactier Publishing Corporation. 1965.
574:Angewandte Chemie International Edition
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675:
318:adding citations to reliable sources
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106:adding citations to reliable sources
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745:. Cengage Learning. pp. 765–.
688:from the original on 16 August 2021
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360:Silicone greases are electrically
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485:"Solubility of silicone fluids"
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305:needs additional citations for
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712:. February 2010. pp. 76–.
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547:Coordination Chemistry Reviews
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1:
739:Tim Gilles (1 January 2015).
617:Canadian Journal of Chemistry
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38:(PDMS) and the thickener is
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238:in undesirable amounts. In
10:
844:
201:, as is typically used in
777:10.1109/HOLM.2014.7031029
559:10.1016/j.ccr.2015.07.005
427:Some divers may use high
364:and are often applied to
509:"8462 - Silicone Grease"
472:10.1002/14356007.a15_423
165:chlorinated hydrocarbons
586:10.1002/anie.200701822
440:decompression sickness
262:, and −0.06 ppm in (CD
55:polytetrafluorethylene
629:10.1139/cjc-2013-0496
448:spontaneously combust
366:electrical connectors
193:Chemical laboratories
187:operating temperature
167:. It is insoluble in
314:improve this article
203:laboratory glassware
102:improve this section
36:polydimethylsiloxane
30:made by combining a
678:"Pen Repair Don'ts"
199:ground glass joints
146:corrosion inhibitor
22:, sometimes called
676:Nishimura, David.
395:galvanic corrosion
185:generally have an
26:, is a waterproof
786:978-1-4799-6068-2
752:978-1-305-44593-2
663:10.1021/om100106e
580:(25): 4610–4613.
533:10.1021/om034176w
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286:Consumer products
274:and 1.38 ppm in C
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690:. Retrieved
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512:. Retrieved
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491:. Retrieved
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444:'accelerate'
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411:
408:SCUBA Diving
399:
374:
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332:
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312:Please help
307:verification
304:
250:, 0.09 in CD
233:
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207:crown ethers
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183:
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118:January 2019
115:
100:Please help
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65:Applications
58:
43:fumed silica
32:silicone oil
23:
19:
18:
377:spark plugs
817:Categories
514:2022-09-08
454:References
418:regulators
370:dielectric
362:insulating
326:April 2022
823:Silicones
594:1433-7851
553:: 64–70.
422:'O' rings
381:plug wire
356:Electrics
89:does not
51:stearates
40:amorphous
803:37220953
692:25 April
686:Archived
602:17546579
493:March 6,
390:contacts
372:grease.
169:methanol
828:Greases
795:1145450
383:or the
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209:(OSi(CH
173:ethanol
153:toluene
142:O-rings
110:removed
95:sources
801:
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600:
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436:Oxygen
402:arcing
163:, and
157:xylene
47:phenyl
28:grease
799:S2CID
647:(PDF)
488:(PDF)
414:SCUBA
791:OSTI
781:ISBN
747:ISBN
694:2022
598:PMID
590:ISSN
495:2019
93:any
91:cite
773:doi
725:EEE
659:doi
625:doi
582:doi
555:doi
551:314
529:doi
468:doi
316:by
104:by
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