What is Synthetic Fibre Beater Sheet?
Synthetic Fibre Beater Sheet (aka non-asbestos beater sheet, synthetic beater paper, fiber gasket sheet) is a vulcanized, medium-density gasket sheet produced from a blend of cellulose/aramid or synthetic fibres and NBR/SBR binders. It is engineered for oil-resistant sealing, good compressibility and dimensional stability for engine, pump and hydraulic applications.
Synthetic Fibre Beater Sheet (also sold as non-asbestos beater sheet, synthetic beater paper, fiber gasket sheet or vulcanized beater sheet) is a medium-density, oil-resistant gasket material made from blended synthetic/cellulose/aramid fibers with rubber binder. It offers reliable sealing for lubrication systems, engine composite gaskets and medium-pressure flange applications; available in standard sheets, rolls and reinforced (tanged/metal-insert) versions.
Key Selling Points
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Engineered for robust oil resistance and medium-temperature service (typical continuous service up to ~150–240°C depending on grade).
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Available in 0.3–4.0 mm thickness (common cut sizes and rolls).
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Excellent compressibility & recovery — conforms to flange irregularities for reliable sealing.
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Reinforced options (tanged carbon steel / stainless steel insert) for cylinder head and high-strength gaskets.
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OEM services: custom die-cut gaskets, laminated composites, surface coatings (graphite/anti-stick) and private-label packaging.
Applications
Common Industrial Applications
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Automotive cylinder head gaskets & exhaust gaskets (reinforced options).
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Pump, gearbox and hydraulic cover gaskets (oil & fuel sealing).
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General machinery — agricultural, motorcycle, construction engines and engineering equipment.
Composition & Standards
Material
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Blend of cellulose and synthetic/aramid fibers + NBR (or SBR) binder + inorganic fillers; vulcanized in sheet form. This yields medium density, good tensile strength and oil swell control.
Certification & test suggestions to show on page (E-A-T support)
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Supply datasheet / SDS (material safety), compressibility/recovery test (ASTM F36), sealability (ASTM F37A) and oil swell (ASTM F146) reports.
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Recommended visible badges: ISO 9001, RoHS / REACH test reports (if applicable), third-party non-asbestos content test.
Technical Specifications
| Parameter | Typical Range / Value | Notes |
|---|---|---|
| Material family | Synthetic/cellulose fibers + NBR/SBR binder | Non-asbestos grade |
| Thickness (available) | 0.3, 0.5, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0 mm (common) | Custom thickness on request. |
| Standard sheet sizes | 500×500, 500×1000, 1000×1000, 1200×1500 mm; rolls by width also possible | Sheet and roll supply common. |
| Density | 1.2 – 1.8 g/cm³ (typical by grade) | Varies by fiber content and compaction. |
| Continuous service temp | 150–240 °C depending on formulation | Check datasheet for exact grade limits. |
| Tensile strength | Typical ≥ 8–12 MPa (grade dependent) | See datasheet for exact numbers. |
| Sealing performance | Typical leakage < 0.5 cm³/min (grade dependent) | Lab measured. |
| Reinforcement option | 0.20–0.25 mm tanged carbon steel or SS insert | For composite cylinder head gaskets. |
Note to buyer: provide the required media (oil/fuel/coolant), temperature and flange load so we can recommend the correct grade.
Common Sizes & Packing
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Common stock sizes: 500×500 mm, 500×1000 mm, 1000×1000 mm, 1200×1500 mm.
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Thickness stocked: 0.3 / 0.5 / 0.8 / 1.0 / 1.5 / 2.0 / 3.0 / 4.0 mm.
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Packing: poly bag + carton + wooden pallet for export; labels include part no., thickness, batch no. Custom inner/end-user packaging on request.
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Marking: optional logo or batch stamp for OEM orders.
Advantages (bullet list — help conversion)
Advantages (bullet list — help conversion)-
Non-asbestos — meets modern safety & regulatory expectations.
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Cost-effective alternative to PTFE/metal composites for medium-pressure sealing.
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Good flange conformability and oil resistance → fewer reworks, longer uptime.
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Available reinforced variants for high-strength applications.
Material Comparison
| Feature | Synthetic Fibre Beater Sheet | Compressed Graphite | PTFE Sheet | Rubber (NBR) Sheet |
|---|---|---|---|---|
| Oil resistance | Good | Excellent | Excellent | Good–Excellent |
| Temp range | 150–240°C | Up to 450°C+ | -200 to +260°C | -40 to +120°C |
| Compressibility | Medium (good flange sealing) | Low (hard) | Low | High |
| Cost | Moderate (cost-efficient) | Higher | High | Low |
| Best for | Oil/fuel gaskets, engine composite gaskets | High temp / steam sealing | Chemical resistance / low permeability | Low-temp, dynamic seals |
Manufacturing & Custom Services
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Die cutting, CNC waterjet, laser cut, CNC router for gaskets.
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Lamination with metal inserts or tinplate for composite beater sheets.
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Surface finishes: graphite coating / anti-stick / lubricant swell treatments.
FAQ
Q1: What is the MOQ?
A: Typical MOQ depends on size & service: for standard stocked sheets MOQ can be 50–200 sheets (by dimension) or 100–500 kg for bulk rolls. For custom die-cut gaskets MOQ often starts from a single production run (charged tooling) — include sample/first-order fees in quotes. (Adjust to your factory policy.)
Q2: What is the lead time?
A: Stock items: 3–10 working days (depending on qty). Custom cuts / laminated or reinforced orders: 7–21 working days depending on complexity and order volume. Expedited production can be quoted. (This is an example template — fill your actual lead times.)
Q3: How is shipping handled?
A: We ship by sea, air or express door-to-door (DHL/UPS/FedEx). Packing: poly + carton + pallet. Incoterms available: FOB / EXW / CIF / DDP on request.
Q4: Do you offer samples?
A: Yes — small cut samples are available. Sample cost may apply; sample lead time 1–5 working days.
Q5: Do you provide OEM/branding and custom sizes?
A: Yes — custom sizes, die-cut gaskets, branded packaging and private-label options available. Provide drawing (DXF/PDF) and target annual qty for best pricing.
Q6: What tests/certificates are provided?
A: We can provide product datasheet (material properties), SDS, and third-party non-asbestos test reports (if applicable). For large orders we provide batch test reports and inspection photos.
Q7: What are common aliases so I can search suppliers?
A: non-asbestos beater sheet, beater paper, synthetic beater sheet, fiber gasket sheet, vulcanized beater sheet, reinforced beater sheet.
