3M 3950
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide

Main features
- Film Edge-Lift Protection
- Water-Tight Interface Sealing
- Defined 50-100 deg F Application
Product Description
3M Edge Sealer 3950 is a colorless liquid acrylic sealant for exposed edges of compatible graphic films and screen-printing inks. Applied along the film boundary, it forms a water- and contaminant-tight seal that helps prevent edge lifting during environmental exposure or cleaning. The sealer is intended for application between 50 and 100 deg F and should not be applied directly to painted surfaces. Its liquid form reaches the narrow film-to-substrate interface for controlled edge coverage. This product suits graphics and screen-printing installations that face rigorous use, prolonged exposure, or repeated cleaning and require added protection at vulnerable film edges.
Key features
- Film Edge-Lift Protection: The applied sealer helps keep compatible film edges from lifting during exposure or cleaning.
- Water-Tight Interface Seal: The seal limits water and contaminant entry at the film-to-substrate boundary.
- Defined Application Window: Apply between 50 and 100 deg F and not directly onto painted surfaces.
Applications
Suitable for sealing exposed edges of compatible graphic films and screen-printing inks.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Physical state | Liquid | - | As supplied |
| Color | Colorless | - | As supplied |
| Odor | Slight solvent | - | As supplied |
| Density | 0.97 | g/ml | As supplied |
| Flash point | 25 | deg C | Tagliabue closed cup |
| Application temperature | 50 to 100 | deg F | Do not apply directly to painted surfaces |
Final-state / after-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Edge-lift protection | Helps prevent lifting | - | Environmental exposure or cleaning |
| Water seal | Tight | - | Compatible graphic film and substrate |
| Contaminant seal | Tight | - | Compatible graphic film and substrate |





















