3M Hot-melt glue sticks

Stanley Hot Glue Gun with Glue stick
Credit: Evan-Amos

Description

[3M, St Paul, MN] A brand name for a 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.

Synonyms and Related Terms

Hot melt glue sticks; Hot glue; Hot-melt adhesive (HMA)

non-3M products: Maxistick 6300 Hot Melt Glue Stick; Thermogrip® 6363; Evo-Stik® 7702; Bostick #6363

Product Tables

Low melt: 250-270F (121-132C)

Product name	Composition	Color	Molten odor	Viscosity at 250F	Open time	Sizes	Applications	Oddy results Link	Sheet links
3M Scotch-Weld 3762 LM	EVA/Hydrogenated hydrocarbon resin/ Hydrocarbon resin/Polyolefin wax	light amber	mild resinous odor	4000 CPS	25 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG 1/2”x12”AE	fast tack at low temperature	Permanent: AWMM (07/22/2015) Fail: GCI (10/28/1003) Link	SDS sheet Tech sheet
3M Scotch-Weld 3792 LM	EVA/Hydrocarbon resin/Hydrocarbons/ Vinyl acetate (<1%)+B26	clear	odorless	10500 CPS	40 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG 1/2”x12”AE	paper board, coated papers, foams, and plastics	Temporary: AMNH (06/20/2019) Permanent: AWMM (07/22/2015) Link	SDS sheet Tech sheet

Hot melt: 350-385F (177-198C)

Product name	Composition	Color	Molten odor	Viscosity at 250F	Open time	Sizes	Applications	Oddy results Link	Sheet links
3M Scotch-Weld 3738	EVA/Hydrocarbon resin/Synthetic rosin resin/ Polyolefin wax	tan	resinous odor	2875 CPS	50 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG 1/2”x12”AE	low viscosity, long open time, high flow rate	n/a	SDS sheet Tech Sheet
3M Scotch-Weld 3748	Polypropylene/Hydrocarbon resin/ Styrene-Butadiene polymer/ Ethylene-Propylene polymer/Polyethylene	off-white	mild resinous odor	5000 CPS	45 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG	bonds well to polyolefins; used for Coroplast	n/a	SDS sheet Tech sheet
3M Scotch-Weld 3762	EVA/Hydrocarbon resin/Polyolefin wax	tan	odorless	1875 CPS	35 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG 1/2”x12”AE	wood, cardboard, fast tack, low viscosity	Fail: MMA (09/24/2019) Fail: GCI (02/19/2001) Link	SDS Sheet Tech sheet
3M Scotch-Weld 3764	EVA/Naphtha polymers/Hydrocarbon resins/ Polyethylene polymer/Polyolefin wax/ Antioxidant	clear	resinous odor	6000 CPS	40 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG 1/2”x12”AE	plastic to plastic	Fail: MMA (09/24/2019) Fail: GCI (02/19/2001) Link	SDS sheet Tech sheet
3M Scotch-Weld 3792	EVA/Hydrocarbon resin	clear	pungent resinous	5000 CPS	50 sec	5/8”x8”Q 5/8”x2” TC 1”x3” PG 1/2”x12”AE	bonds dissimilar substrates	Pass: Permanent BKM (03/16/2009) Pass: GCI (03/03/1996) Link	SDS sheet Tech sheet

Physical and Chemical Properties

• Have 2 year long shelf-life
• Do not loose volume on cooling
• Do not have any specific disposal requirements
• May be susceptible to oxidation and UV degradation with age

Resources and Citations

• 3M Hot-melt adhesives: website

• Wikipedia "Hot-melt adhesives" https://en.wikipedia.org/wiki/Hot-melt_adhesive

• 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)