3M Super 77 Multipurpose Spray Adhesive Review (2026)
By The DIYPicks Team · Updated July 2026
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- Foam bonding
- Fabric
- Large area
- Insulation
- Crafts
The workhorse for bonding large soft materials: foam, fabric, batting, headliners, and insulation. Its aggressive tack plus long open time lets you spray, wait, and press without clamps, which no liquid glue can match on big flexible sheets.
Pros
- Fast aggressive tack with a wide 15-second to 30-minute open time for positioning big pieces
- High-solids formula covers large areas and leaves a soft, non-dimpling glue line on foam and fabric
- Low-VOC, CARB-compliant formula sprays a fine even mist for upholstery, insulation, and crafts
Cons
- Overspray drifts and gets tacky on nearby surfaces, so masking is a must
- Not built for structural loads or constant heat; it's a laminating adhesive, not a load-bearing one
- Aerosol can clog if not inverted and cleared after use
Specifications
| Type | Aerosol multipurpose spray adhesive |
|---|---|
| Set time | Bond within 15 sec to 30 min open time |
| Full cure | Handles immediately; full strength in ~24 hr |
| Bonds | Foam, fabric, paper, cardboard, foil, plastic, metal, wood, insulation |
| Strength | Fast aggressive tack; soft, non-dimpling glue line |
| Coverage | ~70 sq ft per 7 oz can; Low VOC <25% |