3M
3M 3747 Hot Melt Adhesive Tan 1 in Dia 3 in L 45 sec 242
A 1-inch diameter, 3-inch long tan hot-melt stick that begins to harden in 45 seconds and bonds ceramic, glass, metal, plastic and wood with 430 psi shear strength
- TypeSealing Compound
- Quick 45-second work life speeds assembly
- Bonds ceramic, glass, metal, plastic and wood
- 430 psi shear strength for structural joints
- FDA 21 CFR 175.105 compliant for food-contact safety
- 100 % solids formula emits no solvents
Product Identity
3M 3747 Hot Melt Adhesive is a tan, 100-percent-solids thermoplastic stick formulated for bonding ceramic, glass, metal, plastic and wood. It suits assembly, repair and fabrication tasks where a quick-setting, electrically non-insulating adhesive is required.
Build Integration
Each stick measures 1 in diameter by 3 in length and fits standard hot-melt applicators that accept this format. The 45-second work life lets you position parts before the adhesive begins to harden at 145 degrees F, freeing you from clamps or extended fixturing.
Sustained Load Behaviour
Under continuous stress the bond delivers a shear strength of 430 psi and maintains a consistent viscosity of 4,100 cps. It complies with FDA 21 CFR 175.105 but is not UV-resistant, so prolonged outdoor exposure or electrical insulation needs are not supported.
Highlights
- Quick 45-second work life speeds assembly
- Bonds ceramic, glass, metal, plastic and wood
- 430 psi shear strength for structural joints
- FDA 21 CFR 175.105 compliant for food-contact safety
- 100 % solids formula emits no solvents
Specifications
| Type | Sealing Compound |
|---|---|
| Brand | 3M |
Questions about this item
How long is the working time before the 3M 3747 adhesive begins to harden?
The adhesive begins to harden after 45 seconds, giving a short window to position and join the parts before the bond sets.
What is the melting temperature and does the adhesive produce noticeable fumes during extended use?
It melts at 145 degrees F and the manufacturer notes that the product is not low-odour, so some smell can be expected when it is heated continuously.
Which substrates are listed as bondable with this hot-melt stick?
The formulation is designed for ceramic, glass, metal, plastic and wood, covering the most common assembly materials.
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