Davies Industrial Supplies 743-3WF (2-Inch-Roll)

E&H #743-3WF PVDF Foam Tape

Overview

E&H #743-3WF is a flexible closed-cell PVDF foam tape coated on one side with a highly fire-retardant acrylic pressure-sensitive adhesive. Developed for aerospace applications, the material is intended for use inside aircraft pressure vessels where lightweight sealing, cushioning, and flame-resistant performance are required. The tape meets Boeing BMS 8-371 Type 1A Class 1 Grade 2 requirements and provides dependable adhesion across a wide operating temperature range.

Key Technical Characteristics

• Product Type: Closed-cell PVDF foam tape
• Base Material: PVDF closed-cell foam
• Adhesive Type: Fire-retardant acrylic pressure-sensitive adhesive
• Adhesive Coating: One side
• Appearance: White opaque
• Available Thickness: 0.002-0.005 in
• Volatile Content: 3.0% maximum
• Heat Resistance: 225°F (107°C)
• Room Temperature Shear (PSTC-7): No movement after 24 hours under 500 g load

Core Performance Benefits

• Flexible closed-cell foam construction provides cushioning and sealing
• Highly fire-retardant adhesive supports aircraft interior safety requirements
• Excellent adhesion to aluminum substrates
• Maintains peel strength across a broad temperature range
• Lightweight construction suitable for aerospace applications
• Pressure-sensitive adhesive simplifies installation
• Good dimensional stability under static loading
• Designed specifically for aircraft pressure vessel interiors

Typical Applications

• Aircraft pressure vessel interiors
• Aerospace sealing applications
• Interior cushioning and spacing
• Aircraft insulation support systems
• Vibration isolation
• Protective foam gasketing
• General aircraft interior assembly
• Lightweight aerospace bonding applications

Material Engineering & Design Features

E&H #743-3WF combines a flexible closed-cell PVDF foam core with a fire-retardant acrylic pressure-sensitive adhesive to provide reliable sealing and cushioning performance while meeting demanding aerospace flammability requirements. The closed-cell construction helps resist compression while maintaining lightweight characteristics.

Typical adhesive performance on aluminum (ASTM D3330) includes:

• Room Temperature: 4.6 lb/in width
• 120°F (100% RH): 5.1 lb/in width
• 160°F: 5.2 lb/in width
• -65°F: 4.5 lb/in width

The adhesive system also demonstrates excellent static shear performance with no movement after 24 hours under PSTC-7 test conditions.

Installation & Handling

• Apply to clean, dry, contaminant-free surfaces
• Use firm application pressure to ensure complete adhesive contact
• Recommended primarily for aluminum and approved aerospace substrates
• Avoid contamination of the adhesive surface during installation
• Store under recommended environmental conditions until use
• Follow approved aerospace installation procedures where applicable

Environmental & Compliance Notes

• Meets Boeing BMS 8-371 Type 1A Class 1 Grade 2 specification
• Highly fire-retardant adhesive formulation
• Maximum volatile content of 3.0%
• Suitable for aircraft interior pressure vessel applications
• Consult applicable material handling and safety documentation before use

Key Advantages for Aerospace Use

• Designed specifically for aircraft pressure vessel interiors
• Flexible closed-cell PVDF foam provides lightweight sealing and cushioning
• Fire-retardant adhesive supports aerospace safety requirements
• Reliable adhesion over a broad temperature range
• Excellent static shear performance for long-term service
• Meets Boeing BMS 8-371 material specification
• Simple pressure-sensitive installation reduces assembly time
• Suitable for aircraft interior sealing, spacing, and vibration isolation applications