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− | [[File:Stanley-Hot-Glue-Gun-GR35K.jpg|thumb|Stanley Hot Glue Gun with Glue stick <br>Credit: Evan-Amos]]
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| == Description == | | == Description == |
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− | [3M, St Paul, MN] A brand name for a [[Hot-melt adhesive|thermoplastic adhesive]] that is applied in the molten state and becomes solid as it quickly cools. Special devices, often sold as glue guns, hold the solid stick while provide heat at the tip to melt the outer section for application.The original 3M brand of Hot-melt Glue Sticks are composed of a copolymer of ethylene vinyl acetate (EVA at 65%) blended with a hydrocarbon resin (terpene-phenol at 30%). Currently many varieties of hot-melt adhesives (HMAs) are available that provide varying melt temperatures, melt viscosities, set-time, surface flow, surface wettability and bond strength.
| + | Any paper size which increases the acidity of the paper pulp. Acid sized paper typically has a pH of 4.5 to 6.0. One type of acid size is a rosin-alum mixture. Starting in the 1820s, [[aluminum%20sulfate|aluminum sulfate]], or papermakers alum, was added to rosin size causing it to flocculate to the cellulosic fibers in the pulp solution. However, residual alum in the paper produces an acidic environment that accelerates the degradation of paper. |
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| == Synonyms and Related Terms == | | == Synonyms and Related Terms == |
− | Hot melt glue sticks; Hot glue; Hot-melt adhesive (HMA)
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− | non-3M products: Maxistick 6300 Hot Melt Glue Stick; Thermogrip® 6363; Evo-Stik® 7702; Bostick #6363
| + | white size |
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− | == Product Tables == | + | ==Resources and Citations== |
− | {| class="wikitable" style="text-align:center"
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− | |+<big>Low melt: 250-270F (121-132C)</big>
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− | |-
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− | !Product name !! Composition !!Color!!Molten<br>odor!!Viscosity<br>at 250F!!Open<br>time!!Sizes!!Applications!!Oddy results<br>Link!!Sheet links
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− | |-
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− | !3M Scotch-Weld 3762 LM
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− | |EVA/Hydrogenated hydrocarbon resin/<br>Hydrocarbon resin/Polyolefin wax||light amber||mild resinous odor||4000 CPS||25 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG<br>1/2”x12”AE||fast tack at low temperature||AWMM (07/22/2015)<br>GCI (10/28/2003)<br>[http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Adhesives_and_Tapes Link]||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x482UN8mU5v70k17zHvu9lxtD7SSSSSS-- SDS sheet]<br>[https://multimedia.3m.com/mws/media/1245166O/3m-hot-melt-adhesive-3762lm-3762-technical-data-sheet.pdf Tech sheet]
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− | |-
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− | !3M Scotch-Weld 3792 LM
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− | |EVA/Hydrocarbon resin/Hydrocarbons/<br>Vinyl acetate (<1%)+B26||clear||odorless||10500 CPS||40 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG<br>1/2”x12”AE||paper board, coated papers, foams, and plastics||AMNH (06/20/2019)<br> AWMM (07/22/2015)<br>[http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Adhesives_and_Tapes Link]||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x4x_xNxmvPv70k17zHvu9lxtD7SSSSSS-- SDS sheet]<br>[https://multimedia.3m.com/mws/media/1245165O/3m-hot-melt-adhesive-3792lm-3776lm-3738-3792-technical-data.pdf Tech sheet]
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− | |}
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− | {| class="wikitable" style="text-align:center"
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− | |+<big>Hot melt: 350-385F (177-198C)</big>
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− | |-
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− | !Product name !! Composition !!Color!!Molten<br>odor!!Viscosity <br>at 250F!!Open<br>time!!Sizes!!Applications!!Oddy results<br>Link!!Sheet links
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− | !3M Scotch-Weld 3738
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− | |EVA/Hydrocarbon resin/Synthetic rosin resin/<br>Polyolefin wax||tan||resinous odor||2875 CPS||50 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG<br>1/2”x12”AE||low viscosity, long open time, high flow rate||n/a ||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x4xtSmYte5v70k17zHvu9lxtD7SSSSSS-- SDS sheet]<br>[https://multimedia.3m.com/mws/media/1245165O/3m-hot-melt-adhesive-3792lm-3776lm-3738-3792-technical-data.pdf Tech Sheet]
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− | !3M Scotch-Weld 3748
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− | |Polypropylene/Hydrocarbon resin/<br>Styrene-Butadiene polymer/<br>Ethylene-Propylene polymer/Polyethylene||off-white||mild resinous odor||5000 CPS||45 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG||bonds well to polyolefins; used for Coroplast||n/a||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x4xtGPY_SMv70k17zHvu9lxtD7SSSSSS-- SDS sheet]<br>[https://multimedia.3m.com/mws/media/1245163O/3m-hot-melt-adhesive-3764-3748-technical-data-sheet.pdf Tech sheet]
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− | !3M Scotch-Weld 3762
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− | |EVA/Hydrocarbon resin/Polyolefin wax||tan||odorless||1875 CPS||35 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG<br>1/2”x12”AE||wood, cardboard, fast tack, low viscosity||MMA (09/24/2019)<br>GCI (02/19/2001)<br>[http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Adhesives_and_Tapes Link]||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x4xtSmYtUmv70k17zHvu9lxtD7SSSSSS-- SDS Sheet]<br>[https://multimedia.3m.com/mws/media/1245166O/3m-hot-melt-adhesive-3762lm-3762-technical-data-sheet.pdf Tech sheet]
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− | |-
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− | !3M Scotch-Weld 3764
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− | |EVA/Naphtha polymers/Hydrocarbon resins/<br>Polyethylene polymer/Polyolefin wax/<br>Antioxidant||clear||resinous odor||6000 CPS||40 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG<br>1/2”x12”AE||plastic to plastic||MMA (09/24/2019)<br>GCI (02/19/2001)<br>[http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Adhesives_and_Tapes Link]||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x4x_Sl8_env70k17zHvu9lxtD7SSSSSS-- SDS sheet]<br>[https://multimedia.3m.com/mws/media/1245163O/3m-hot-melt-adhesive-3764-3748-technical-data-sheet.pdf Tech sheet]
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− | |-
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− | !3M Scotch-Weld 3792
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− | |EVA/Hydrocarbon resin ||clear||pungent resinous||5000 CPS||50 sec||5/8”x8”Q<br>5/8”x2” TC<br>1”x3” PG<br>1/2”x12”AE||bonds dissimilar substrates||BKM (03/16/2009)<br>GCI (03/03/1996)<br>[http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Adhesives_and_Tapes Link]||[https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn_zu8l00x4xtSmYtSnv70k17zHvu9lxtD7SSSSSS-- SDS sheet]<br>[https://multimedia.3m.com/mws/media/1245165O/3m-hot-melt-adhesive-3792lm-3776lm-3738-3792-technical-data.pdf Tech sheet]
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− | |}
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− | == Physical and Chemical Properties ==
| + | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 |
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− | * Do not loose volume on cooling | + | * Roy Perkinson, contributed information, 1998 |
− | * Do not have any specific disposal requirements
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− | * May be susceptible to oxidation and UV degradation with age
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− | == Working Properties ==
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− | * Have 2 year long shelf-life; Store below 120 F
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− | * Applied with hot melt applicators, aggressive tack, extremely short open/working time (seconds, not minutes)
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− | == Resources and Citations ==
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− | * 3M Hot-melt adhesives: [https://www.3m.com/3M/en_US/company-us/all-3m-products/?N=5002385+8710676+8710815+8710968+8711017+8716336+8735446+3294857497&rt=r3 website]
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− | * Wikipedia "Hot-melt adhesives" https://en.wikipedia.org/wiki/Hot-melt_adhesive
| + | [[Category:Materials database]] |
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− | * Rachael Perkins Arenstein, Lisa Goldberg, and Eugenie Milroy, ‘Support and Rehousing for Collection Storage’ In ‘Preventive Conservation: Collection Storage’ Lisa Elkin and Christopher A. Norris (eds.), Society for the Preservation of Natural History Collections, New York. 2019. (List for Forms/Sizes)
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− | [[Category:Materials database]][[Category:MWG]][[Category:PACCIN]][[:Category:Adhesives]][[Category: Adhesive: Hot-melt]] | |