3M Hot-melt glue sticks
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
| Product name | Composition | Color | Molten odor |
Viscosity at 250F |
Open time |
Sizes | Applications | Material Analysis 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 | AWMM (07/22/2015) 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 | AMNH (06/20/2019) AWMM (07/22/2015) Link |
SDS sheet Tech sheet |
| Product name | Composition | Color | Molten odor |
Viscosity at 250F |
Open time |
Sizes | Applications | Material Analysis 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 | MMA (09/24/2019) 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 | MMA (09/24/2019) 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 | n/a | SDS sheet Tech sheet |
Physical and Chemical Properties
- Do not lose volume on cooling
- Do not have any specific disposal requirements
- May be susceptible to oxidation and UV degradation with age
Working Properties
- Have 2 year long shelf-life; Store below 120 F
- Applied with hot melt applicators, aggressive tack, extremely short open/working time (seconds, not minutes)
Resources and Citations
- AIC Conservation Wiki: Adhesives for Use Inside Exhibit Cases
- 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)