Details
Brief Introduction
Basalt Needle-Punched Felt is three-dimensional nonwoven basalt felt made by mechanical needle punching. It provides overseas buyers with a practical basalt-based solution for thermal insulation, acoustic absorption, hot-gas filtration, heat shields, equipment lining and exhaust insulation. The product combines the inherent thermal and corrosion resistance of basalt fiber with a construction selected for handling, conversion and end-use performance.
Product Advantages
-Thermal insulation.
-Acoustic absorption.
-Conformability.
-No woven seam structure.
-Basalt-based construction provides a non-asbestos, corrosion-resistant alternative for appropriate industrial applications.
-The product can be supplied in OEM dimensions and packaging when production capability and minimum order quantity are confirmed.
Product Classification
-Product family: Basalt Fiber Felts.
-Construction or product form: Basalt Needle-Punched Felt or high-temperature needle felt.
-Surface condition: uncoated or product-specific treatment as stated in the product name and approved specification.
-Supply grade: standard industrial grade, converter grade, OEM grade or custom grade.
-Commercial size range: 2-10 mm published high-temperature needle-punched felt range; 1-2.5 m width.
Product Performance
The principal commercial benefit of Basalt Needle-Punched Felt is thermal insulation, acoustic absorption, conformability, no woven seam structure. Performance depends on yarn grade, construction density, surface treatment, dimensions and the severity and duration of exposure. Basalt fiber normally provides useful heat stability and resistance to many corrosive environments, but compatibility must be confirmed with the actual chemical, pressure, abrasion and thermal cycle.
-Thermal performance: specify continuous service temperature, short-term peak temperature, exposure duration and whether radiant heat or direct flame is present.
-Mechanical performance: Thermal insulation; verify tensile, tear, compression, abrasion or flex data appropriate to the product form.
-Fire performance: test the finished product because sizing, binder, coating, adhesive, foil and sewing materials can change flame spread, smoke and after-flame behavior.
-Chemical performance: verify resistance to the named acid, alkali, oil, fuel, steam, salt, solvent or process gas at the specified concentration and temperature.
-Quality consistency: control appearance, dimensions, mass, construction, treatment add-on, roll or coil length and batch traceability.
Technical Data Parameters
The following items should appear on the final technical data sheet or purchase specification:
-Primary size range: 2-10 mm published high-temperature needle-punched felt range; 1-2.5 m width.
-Construction: Basalt Needle-Punched Felt or high-temperature needle felt.
-Material composition: basalt fiber content plus complete identification of sizing, binder, coating, adhesive, film, foil, core or sewing thread where applicable.
-Dimensional data: nominal width, diameter, section, thickness, length and the agreed tolerance for each relevant dimension.
-Physical data: mass per unit area or length, density, coating add-on, porosity or air permeability when relevant.
-Mechanical data: tensile strength, tear strength, compression recovery, abrasion resistance, peel strength or burst strength as applicable.
-Thermal data: continuous temperature, short-term peak, linear shrinkage, thermal conductivity or radiant-heat performance when required.
-Finished color and appearance: natural basalt color or coating-dependent color, with an agreed visual acceptance standard.
-Supply form: roll, reel, coil, bag, carton or pallet, including unit length, joints policy, core size and labeling.
SPECIFICATION
ITEM | DESCRIPTION |
Product name | Basalt Needle-Punched Felt |
Product classification | Basalt Needle-Punched Felt or high-temperature needle felt |
Primary size range | 2-10 mm published high-temperature needle-punched felt range; 1-2.5 m width |
Construction or weave pattern | Basalt Needle-Punched Felt or high-temperature needle felt |
Material and treatment | Basalt fiber plus the approved sizing, coating, adhesive, foil, binder or core system |
Dimensions and tolerance | Width, diameter, thickness, length or section and tolerance to be confirmed in the approved purchase specification |
Temperature rating | Continuous service, short-term peak, exposure duration and direct-flame condition to be stated separately |
Mechanical data | Tensile, tear, compression, abrasion, peel or burst properties as applicable to the product form |
Supply form | Roll, reel, coil, bag, carton or pallet; unit length and joints policy to be agreed |
Customization | Dimensions, treatment, color, packaging, labeling and private label subject to capability and MOQ |
Thickness | 2-10 mm |
Width | 1-2.5 m |
Other dimensions | Available by agreement |
Specifications are for reference only. For exact dimensions, performance requirements, customization, testing and project-specific recommendations, please contact us.
Applications
-Thermal insulation: use basalt needle-punched felt where its construction and verified performance match the operating conditions.
-Acoustic absorption: use basalt needle-punched felt where its construction and verified performance match the operating conditions.
-Hot-gas filtration: use basalt needle-punched felt where its construction and verified performance match the operating conditions.
-Heat shields: use basalt needle-punched felt where its construction and verified performance match the operating conditions.
-Equipment lining and exhaust insulation: use basalt needle-punched felt where its construction and verified performance match the operating conditions.
-OEM fabrication: Basalt Needle-Punched Felt may be cut, sewn, wrapped, laminated, molded or assembled into finished thermal or reinforcement components when the selected grade supports the process.
-Maintenance and retrofit projects: useful for replacement, localized protection and upgrade work where installation access and shutdown time are important selection factors.
Transport and Storage
-Transport basalt needle-punched felt in dry, covered vehicles and protect it from rain, crushing, puncture and contamination.
-Keep the original label and batch identification intact; do not drag rolls, reels or coils across rough floors.
-Store indoors in the original sealed packaging, ideally at 5-35 C and below 70% relative humidity.
-Keep away from incompatible chemicals, direct sunlight and ignition sources. Apply FIFO and confirm shelf life for treated or coated grades.
FAQ
Q: What information is required to quote Basalt Needle-Punched Felt?
A: Specify 2-10 mm published high-temperature needle-punched felt range; 1-2.5 m width, required construction, operating temperature, exposure medium, installation method, quantity, destination and applicable test standard.
Q: How should a buyer select the correct type of Basalt Needle-Punched Felt?
A: Select first by function, then by construction, dimensions, mechanical demand, thermal cycle and chemical exposure. A sample trial is recommended when replacing another material.
Q: What continuous and peak temperatures can Basalt Needle-Punched Felt withstand?
A: The values must be confirmed for the complete finished construction. Continuous service, short-term peak, radiant exposure and direct flame are different conditions, and the lowest-rated component controls the product rating.
Q: Can Basalt Needle-Punched Felt be customized for OEM orders?
A: Yes. Dimensions, construction, surface treatment, color, unit length, packaging and private labeling can be discussed, subject to manufacturing capability and MOQ.
Q: How is Basalt Needle-Punched Felt installed or processed?
A: The method depends on the product form and may include wrapping, clamping, sewing, bonding, molding or mechanical fastening. The buyer should approve installation instructions and accessory compatibility before use.
Q: Does Basalt Needle-Punched Felt contain asbestos?
A: Basalt fiber products are normally manufactured as non-asbestos materials. A supplier declaration or third-party report should support any formal compliance claim.
Q: What acceptance checks are recommended for Basalt Needle-Punched Felt?
A: Check product identity, dimensions, mass, construction, appearance, unit length and batch documents. Add application-specific mechanical or thermal tests where required.
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