3M™ Foam Tape 4718
3M™ 4718 is a black, medium-density, single-coated vinyl foam tape designed to seal out dust, moisture, and light. Its conformable closed-cell foam and acrylic adhesive provide durable performance in demanding gasketing, insulating, and cushioning applications.
3M™ 4718 Features:
- 0.125 in. (3.2 mm) thick closed-cell foam construction
- Durable acrylic adhesive with good aging and UV resistance
- Paper liner supports die-cutting without extra lamination
- Conformable for curved or irregular surfaces
3M™ 4718 Applications:
- Gasketing and sealing for HVAC and appliances
- Moisture and dust barrier for electronics and enclosures
- Insulation in transportation and construction equipment
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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Typical Physical Properties
|
Attribute Name |
Test Method |
Value |
|
Color |
|
Black |
|
Adhesive Type |
|
430* |
|
Density |
ASTM D3574 |
288 kg/m³ (18 lb/ft³) ¹ |
|
Shore 00 Hardness |
ASTM D2240 |
50 ¹ |
|
Mold and Mildew Resistance |
ASTM G21 |
No growth after 28 days ² |
|
Compression Deflection: 25% Compression |
ASTM D3574 |
13.8 kPa (2 lb/in²) |
|
Attribute Name |
Test Method |
Value |
|
Color |
|
Black |
|
Adhesive Type |
|
430* |
|
Density |
ASTM D3574 |
288 kg/m³ (18 lb/ft³) ¹ |
|
Shore 00 Hardness |
ASTM D2240 |
50 ¹ |
|
Mold and Mildew Resistance |
ASTM G21 |
No growth after 28 days ² |
|
Compression Deflection: 25% Compression |
ASTM D3574 |
13.8 kPa (2 lb/in²) |
|
Attribute Name |
Value |
|
Thickness |
3.2 mm (125 mil) |
|
Liner Thickness |
0.1 mm (4 mil) |
|
Primary Liner Color |
White |
|
Thickness Tolerance |
20 % |
|
Attribute Name |
Value |
|
*Note |
*3M™ Adhesive 430 is a medium soft adhesive system that offers good quick stick to many types of surfaces along with excellent aging and UV resistance. |
|
Attribute Name |
Value |
|
Thickness |
3.2 mm (125 mil) |
|
Liner Thickness |
0.1 mm (4 mil) |
|
Primary Liner Color |
White |
|
Thickness Tolerance |
20 % |
Typical Performance Characteristics
|
Attribute Name |
Value |
|
Short Term Temperature Resistance |
121 °C (250 °F) ¹ |
|
Long Term Temperature Resistance |
66 °C (150 °F) ² |
|
Temperature Resistance |
Cold flex at -18 °C (Cold flex at 0 °F) ³ |
|
Attribute Name |
Test Method |
Value |
|
Elongation |
ASTM D3574 |
200 % ¹ |
|
Tensile Strength |
ASTM D3574 |
650 kPa (95 lb/in²) ¹ |
|
Compression Set |
ASTM D1667 |
5 % |
Electrical and Thermal Properties
|
Attribute Name |
Test Method |
Value |
|
Thermal Conductivity |
ASTM C518 |
0.043 W/m/K (3 (btu-in)/(h-ft²-°F)) |
|
Surface Resistivity (Non-Adhesive) |
ASTM D257 |
5 x 10¹⁰ Ω ¹ |
|
Surface Resistivity (Adhesive) |
ASTM D257 |
2 x 10¹¹ Ω ² |
|
Water Absorption: 30% Compression |
ASTM D1056 |
10 % by Volume |
Available Sizes
|
Attribute Name |
Value |
|
Maximum Available Width |
1168 mm (46 in) |
|
Maximum Length |
45.7 m (50 yd) |
|
Minimum Available Width |
6 mm (0.25 in) |
|
Normal Slitting Tolerance |
± 0.8 mm (± 1/32 in) |
|
Roll Diameter |
380 mm (15 in) |
|
Standard Roll Length |
32.9 m (36 yd) |
