3M 4116
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide

Main features
- Fast Initial Multi-Substrate Tack
- Breathable Contaminant-Trapping Seal
- High-Density Vibration Damping
Product Description
3M Urethane Foam Tape 4116 is a natural, single-coated, open-cell urethane foam tape with pressure-sensitive acrylic adhesive for cushioning, sealing, and vibration control. Its 1.6 mm (62 mil) firm, high-density foam absorbs vibration and dampens sound while allowing air and gas vapor to pass through. The structure traps moisture, dust, and drafts without creating a closed-cell barrier, and the adhesive provides high initial quick-stick on multiple substrates. Adhesion is typically satisfactory within 20 minutes and continues to build over time. This tape suits electronics cushioning, printers, keyboards, computers, aircraft lights, automotive dashboards, recessed lighting, and door, window, or cabinet seals.
Key features
- Firm High-Density Cushioning: The urethane foam absorbs vibration and dampens sound in electronic and industrial assemblies.
- Breathable Open-Cell Sealing: The foam traps moisture, dust, and drafts while allowing air and gas vapor to pass.
- Fast Initial Acrylic Tack: The pressure-sensitive adhesive provides quick-stick and builds adhesion after application.
Applications
Suitable for electronics cushioning, printers, keyboards, computers, aircraft lights, automotive dashboards, recessed lighting, and door, window, or cabinet seals.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Mechanical Properties
Other Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Carrier | Firm open-cell urethane foam | - | As supplied |
| Adhesive | Acrylic | - | Pressure-sensitive; one side |
| Color | Natural | - | As supplied |
| Total thickness without liner | 62 (1.6) | mil (mm) | As supplied |
| Density | 18 (288) | lb/ft3 (kg/m3) | As supplied |
| Foam type | Firm, high density | - | Open cell |
| Liner | Silicone-treated paper | - | White |
| Shelf life | 24 | months | Product classification |
Final-state / after-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Adhesion build | Typically satisfactory within 20 min | - | Continues to build with time |
| Breathability | Air and gas vapor pass through | - | Applied open-cell foam |
| Cushioning and absorbency | Excellent | - | Applied foam |
| Sound and vibration response | Dampens sound and absorbs vibration | - | Applied foam |
| Contaminant control | Traps moisture, dust, and drafts | - | Applied foam |





















