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Cork

Coast-Line is the US-approved distributor of Amorim aerospace cork — certified materials engineered for bonding to metal and composite substrates in aerospace thermal protection, vibration isolation, and sealing applications. Three grades: P45, P50, and P65.

Coast-Line International is the US-approved distributor of Amorim TPS aerospace cork — certified materials designed to meet stringent aerospace performance and qualification requirements. Amorim cork is used for thermal insulation, vibration damping, and acoustic attenuation in aerospace assemblies where a natural, lightweight material with excellent compressibility and bond adhesion to metal and composite substrates is required. Available in three density grades: P45, P50, and P65.

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Amorim TPS

Aerospace Cork — P45 · P50 · P65

P45
Low Density · Flexible

The lowest-density Amorim aerospace cork grade — optimized for applications requiring maximum flexibility and elongation. High compressibility and excellent damping properties make P45 well-suited for vibration isolation, acoustic attenuation, and applications where the cork must conform to curved or complex surfaces during bonding.

Cork Particle Size½ mm
Sheet Size50″ × 30″ (1270 × 760 mm)
Density @ 20°C300–350 kg/m³ (19–22 lb/ft³)
Tensile Strength>125 psi / >0.86 MPa
Elongation>30%
Thermal Conductivity0.06 W/(m°K)
Specific Heat2.5 KJ/(Kg·°K)

ASTM F1315 · F152 · C177 · C351 Metal & Composite
P50
Medium Density · General Purpose

The mid-range Amorim aerospace cork grade — balancing density, strength, and flexibility for general aerospace sealing, thermal protection, and damping applications. P50 provides significantly higher tensile strength than P45 while maintaining good elongation, making it the versatile all-purpose grade for most aerospace cork applications.

Cork Particle Size0.5/1 mm
Sheet Size50″ × 30″ (1270 × 760 mm)
Density @ 20°C448–512 kg/m³ (28–32 lb/ft³)
Tensile Strength>247 psi / >1.70 MPa
Elongation>13%
Thermal Conductivity0.07 W/(m°K)
Specific Heat2.1 KJ/(Kg·°K)

ASTM F1315 · F152 · C177 · C351 Metal & Composite
P65
High Density · Structural

The highest-density Amorim aerospace cork grade — engineered for structural sealing and applications requiring maximum load-bearing capability. Smaller sheet format (37″ × 25″). Thermal conductivity and specific heat data are indicative values. Contact Coast-Line for specific heat testing status as characterization is ongoing.

Cork Particle Size0.5/1 mm
Sheet Size37″ × 25″ (950 × 650 mm)
Density @ 20°C580–650 kg/m³ (36.2–40.6 lb/ft³)
Tensile Strength2.93 psi / 425 MPa
Elongation3%
Thermal Conductivity0.073 W/(m°K) (indicative)
Specific HeatOngoing characterization

ASTM F1315 · F152 · C177 · C351 Metal & Composite