Products Description

High resilience corrugated graphite tape is an innovative packaging and sealing material made from high-performance polymer materials (e.g., PP, PE) with reinforcing components. Its core feature lies in the elasticity derived from its unique corrugated geometric structure, which enables it to fill uneven contact surfaces and provide reliable sealing and fixing effects. It is particularly suitable for application scenarios with irregular shapes, vibrations, or those requiring repeated bonding and adjustment.

Data Sheet of Graphite Corrugated Strip

Parameter	Typical Value	Unit	Remarks
Material	High-purity expanded graphite	-	May contain reinforcing materials (e.g., glass fiber)
Thickness	0.1 - 1.0	mm	Customizable as required
Density	0.8 - 1.4	g/cm³	Affects sealing performance and flexibility
Operating Temperature	-200 to +600 (up to 3000 in inert gas)	°C	Excellent high and low temperature resistance
Compressive Strength	5 - 20	MPa	Depends on density and structure
Compressibility	20 - 50%	%	Suitable for irregular surfaces
Rebound Rate	≥15 - 30%	%	Recovery capability after long-term use
Thermal Conductivity	5 - 150	W/m·K	Difference between axial/radial directions
Resistivity	5 - 15	μΩ·m	Good electrical conductivity
Corrosion Resistance	Excellent (resistant to acids, alkalis, oxidation)	-	Not suitable for strong oxidizing acids (e.g., concentrated nitric acid)
Application Scenarios	High-temperature sealing, flange gaskets, battery thermal/electrical conduction interfaces	-	Industrial, energy, electronics, and other fields

Note: Products support personalized customization.

Core material: High-performance elastic polymer

(1) Good elasticity: Manufactured using modified polypropylene or polyethylene blended with elastic additives, it boasts excellent elongation (typically 140%-160%) and recovery capability, far surpassing that of ordinary flat tapes, which forms the basis for its adaptive sealing performance.

(2) Lightweight and durable: The polymer base material is lightweight yet tear-resistant, ensuring long-term structural stability under repeated stress.

(3) Chemical resistance: Resistant to most common solvents, moisture, and mild corrosive environments, suitable for diverse industrial and logistics scenarios.

(4) Directional flexibility: Flexibility is mainly exhibited along the length and width directions (X-Y plane) for easy wrapping, while maintaining sufficient rigidity in the thickness direction (Z direction) to avoid excessive deformation under light pressure. The design of the corrugated tape cleverly leverages this characteristic.

Key structure: Corrugated geometric design

(1) Key to achieving elasticity: The tape base is processed into a regular structure of wave crests and troughs through precision embossing techniques. This is not a simple fold but a meticulously designed geometric form to balance elasticity and strength.

(2) Deformation capability: When subjected to pressure, the wave crests of the corrugated tape can be compressed, and the wave troughs can be stretched, exhibiting a spring-like effect in the Z direction (thickness direction). It can recover its shape after slight extrusion deformation (high resilience) or undergo significant deformation under greater pressure (high compressibility). This compressibility and resilience are the core advantages that traditional flat tapes lack.

(3) Absorbing gaps and tolerances: It can effectively absorb assembly tolerances, irregularities of bonded surfaces, dimensional differences of packaged items, and gap changes caused by transportation vibrations. The height of the corrugations provides pre-compression space for tight sealing.

Manufacturing process of High Resilience Corrugated Graphite Tape

(1) Usually starts with high-purity polymer resin pellets (e.g., PP, PE) blended with elastic modifiers.

(2) After melt extrusion and calendering to form thin films, it undergoes precision embossing or molding to create the corrugated structure.

(3) An adhesive layer (e.g., acrylic, rubber-based) may be coated on one or both sides to enhance bonding strength, and a release film may be added for easy storage and use (with adhesive backing).

(4) Finally, it is slit into rolls of specific widths and lengths or cut into sheets of particular shapes according to requirements.