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during proper assembly, machining and finishing variances usually result in a fit that does not result in 100 percent contact between the mating components. The application of pipe dope prior to assembly will fill the minute voids between the threads, thus making the joint pressure tight. Pipe dope
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joint leakproof and pressure tight. It is also referred to as "thread compound" or "pipe thread sealant." Although common pipe threads are tapered and therefore will achieve an
226:
F2331 - Standard Test Method for
Determining Chemical Compatibility of Thread Sealants with Thermoplastic Threaded Pipe and Fittings Materials or
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also acts as a lubricant and helps prevent seizing of the mating parts, which can later cause difficulty during disassembly.
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pipe and fittings since it will deteriorate the plastic. Builders in the US are expected to use thread compounds that meet
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Various types of pipe dope formulation exist, the appropriate type being determined by the application, e.g.,
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Darrell P. Salisbury and Robert L. Sloan, Process for
Cleaning Pipe Dope and Other Solids from Well Systems,
340:
Navy
Training Courses NAVPERS 10592-A, Bureau of Naval Personnel, U.S. Govt. Printing Office, 1953; page 277.
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136:. Improper selection of the type of pipe dope may result in leakage despite the best assembly practices.
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was also used in some applications. Litharge was also the recommended pipe dope for fuel piping.
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have been included. Heavy metals make up to 25% of the volume of the dope.
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serve as a lubricant as the fittings are forced together (vegetable oil).
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248:"Plant Engineering | Guidelines For Choosing A Pipe Thread Sealant"
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John D. Watts and
Beverly W. Ramos, Wedgethread Pipe Connection,
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Petroleum-based pipe dope is not intended for use on threaded
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fill minute spaces between mating pipe fittings (kaolin), and
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reports that the "Permatex" 51D pipe joint compound contains
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is included to improve application to wet or cold surfaces.
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Pipe dopes used in oil drilling frequently include powdered
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unsourced claims needing sources or removing, overall check.
273:"How to Use Pipe Thread Sealant: An Essential Guide"
147:was used as a dope for drinking water pipes.
31:needs attention from an expert in Engineering
8:
353:, No. 18 (Sept. 15, 1922); pages 902-904.
109:, etc. The ingredients are designed to:
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383:, granted Jan. 27, 2004; see claim 24.
349:M. S. Howard, Erecting an Oil Engine,
41:may be able to help recruit an expert.
7:
351:Power Plant Engineering, Vol. XXVI
151:(a form of lead oxide) mixed with
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139:As recently as the 1950s, toxic
132:, etc., as well as the expected
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230:on PVC, CPVC and ABS threads.
65:, thread sealing compound, or
1:
277:QRFS - Thoughts on Fire Blog
33:. The specific problem is:
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91:material safety data sheet
67:anaerobic chemical sealant
368:, granted Oct. 14, 1997.
319:www.henkel-adhesives.com
69:that is used to make a
39:WikiProject Engineering
380:U.S. patent 6,682,101
365:U.S. patent 5,676,763
338:Pipe Fitter 3&2
298:"Safety Data Sheet"
279:. 15 September 2020
315:"Thread Sealants"
252:Plant Engineering
192:calcium carbonate
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61:is any thread
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206:Plastic pipes
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174:suspended in
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99:vegetable oil
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29:This article
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322:. Retrieved
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281:. Retrieved
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256:. Retrieved
254:. 1998-03-01
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145:spar varnish
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30:
143:mixed with
95:kaolin clay
85:Composition
405:Lubricants
394:Categories
324:2021-05-20
283:2021-05-20
258:2021-05-20
234:References
141:lead oxide
153:glycerine
126:hydraulic
122:pneumatic
63:lubricant
59:Pipe dope
47:July 2018
400:Plumbing
200:Silicone
160:graphite
149:Litharge
134:pressure
130:caustic
107:ethanol
188:silica
180:nickel
176:grease
172:copper
74:thread
301:(PDF)
103:rosin
224:ASTM
216:CPVC
196:clay
194:and
184:talc
168:zinc
166:and
164:lead
71:pipe
220:ABS
218:or
212:PVC
396::
317:.
275:.
250:.
214:,
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101:,
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89:A
327:.
303:.
286:.
261:.
49:)
45:(
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