CF6795 Basalt Fiber Cloth

Basalt Fiber Cloth Description

Crafted from continuous basalt filaments woven into precision architectures (plain, twill, satin), this fabric features 9–13 μm fibers uniformly coated with epoxy/phenolic-specific silane sizing (e.g., γ-glycidoxypropyltrimethoxysilane), enabling covalent bonding with resins for interfacial shear strengths >40 MPa. The amorphous basalt matrix grants unmatched thermal resilience, retaining >85% tensile strength at 600°C and enduring thermal shocks from -260°C to +700°C—critical for rocket motor insulation and fire-exposed structures.

Mechanically, warp-direction tensile strength reaches 0.55–0.62 N/tex (20% higher than E-glass equivalents), with a modulus of 89–95 GPa that resists delamination under impact. Chemically inert and hydrolysis-resistant (<0.2% moisture absorption), it withstands concentrated acids (e.g., 20% H₂SO₄), alkalis (pH 14), and seawater for decades—marine laminates show <15% strength loss after 10 years. Electrically non-conductive with exceptional flame retardancy (LOI >70%), it emits negligible smoke/toxic fumes.

Processing advantages include rapid resin wet-out (<90 seconds for epoxy) and compatibility with autoclave/vacuum infusion. The balanced drapeability (twill weaves) and low fraying ensure seamless molding of complex contours. These properties yield composites with 50% higher flexural fatigue life, 45% improved impact resistance, and 30% weight savings versus steel, while reducing CO₂ footprint by 35% compared to carbon fiber fabrics.

Basalt Fiber Cloth Applications

1. Fire & High-Temperature Protection

Aircraft firewall cladding: Withstands 1,000°C jet exhaust for 15 minutes (LOI >70%).

Tunnel escape route linings: Meets EN 45545-2 fire standards (zero toxic fume release).

2. Aerospace & Defense

Radomes: Radar-transparent with hail impact resistance (30 J/cm²).

Missile heat shields: Ablation resistance at Mach 5+ re-entry.

3. Marine Engineering

High-speed boat hulls: 40% lighter than GRP, immune to saltwater blistering.

Offshore platform walkways: Non-slip surface + corrosion-free lifetime.

4. Automotive & Industrial

EV battery fire barriers: Self-extinguishing layer between cells.

Chemical tank linings: Resists 98% H₂SO₄ at 80°C.

Basalt Fiber Cloth Packaging

Our products are packaged in customized cartons of various sizes based on the material dimensions. Small items are securely packed in PP boxes, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customization and the use of appropriate cushioning materials to provide optimal protection during transportation.

Packaging: Carton, Wooden Box, or Customized.

Kindly review the packaging details provided for your reference.

Manufacturing Process

1.       Testing Method

(1)    Chemical Composition Analysis - Verified using techniques such as GDMS or XRF to ensure compliance with purity requirements.

(2)    Mechanical Properties Testing - Includes tensile strength, yield strength, and elongation tests to assess material performance.

(3)    Dimensional Inspection - Measures thickness, width, and length to ensure adherence to specified tolerances.

(4)    Surface Quality Inspection - Checks for defects such as scratches, cracks, or inclusions through visual and ultrasonic examination.

(5)    Hardness Testing - Determines material hardness to confirm uniformity and mechanical reliability.

Please refer to the SAM testing procedures for detailed information.

Basalt Fiber Cloth FAQs

Q1. Why choose basalt over fiberglass cloth?

25% higher temperature resistance (700°C vs. 550°C), 3× acid/alkali resistance, LOI >70% (vs. 50% for E-glass), and 35% lower carbon footprint.

Q2. How does it compare to carbon fiber cloth?

80% cost reduction, 300% better impact resistance, radar transparency, and no galvanic corrosion risk.

Q3. Compatible resin systems?

Epoxy (fast-curing), phenolic (fireproof), vinyl ester (marine), silicone (extreme heat).

Related Information

Common Preparation Methods

1. Fiber Production: Basalt ore → Crushing → Magnetic cleaning → Melting (1,500°C) → Extrusion through 9–13 μm bushings → Air-quenched filaments.

2. Yarn Formation: Filaments coated with epoxy-specific silane sizing → Assembled into untwisted rovings (600–2400 Tex).

3. Weaving: Rovings woven on rapier looms (tension: 20–30 N) → Plain/twill/satin patterns → Areal weight controlled via warp/weft density.

4. Finishing: Heat-cleaned at 350°C to remove sizing impurities → Re-coated with phenolic-compatible silane → Thermal curing (150°C, 20 min).

5. Quality Control: Areal weight (ASTM D3776) → Tensile strength (ISO 4606) → LOI (ASTM D2863) → Resin wet-out time (<90 sec).

6. Packaging: Rolled on cardboard cores → Sealed in moisture-barrier film → Labeled with weave/weight specifications.