Chemical Resistant FKM Gasket
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. We match FKM gaskets exactly to A/B/F/GLT grades and these are capable to be used with a wide range of acidic and alkaline solvents.
2. Service for a long period even at high temperatures (as high as 250°C) with retaining of elasticity, the occurrence of hardening and cracking is minimized.
3. Tolerating size changes within ±0.1mm and using AI to inspect the entire product thoroughly for quality assurance are our high precision features.
Sudden Swelling, Hardening, And Leakage Caused by Material Grade Mismatches or "Fake Fkm"
Although FKM (fluoroelastomer) is quite expensive, it is not a "universal" solution. The greatest risk is buying costly gaskets that fail—swelling rapidly, becoming hard, cracking, or even dissolving—after a very short time of exposure to certain media by reason of insufficient fluorine content or incorrect grade selection (e.g., taking a standard Grade A FKM to strong acid environments or high-fluorine FKM to low temperature settings). These "hidden-failures" can be the reason behind unannounced media leaks in chemical pipelines and reactors, which may cause substantial downtime costs and safety or environmental incidents."
Detailed Yida Solutions:
Technical support from Yida stands above the crowd: Yida doesn't simply sell you the product, they actually work hard to help you out. The exact chemical composition, concentration and temperature of operation given by the client will serve as a basis for them to pinpoint the exact material, out of their library of over 1,000 formulations, that fits the bill:
Strong oxidizing acids: Select Grade F or GF (70% high fluorine content) to resist permeation.
Fuel/Solvents: Select Grade A or B to balance cost and performance.
Low-temperature conditions: Select Grade GLT to ensure resilience remains intact at -40°C.
Quality assurance loop rejecting "off-spec" or "secondary-brand" rubber: We only use virgin FKM 100% (that is, raw rubber from Chemours or Daikin). We use density tests (we strictly control specific gravity 1.8 - 1.9 g/cm³) and barcode-based error-proofs systems to ensure the batch to batch consistency in fluorine content and physical properties of every FKM oil seal. This means that the gaskets supplied to our customers can have an oil-resistance volume change rate even below 5% in highly corrosive environments.
Specifications for FKM seals for chemical processing:
| Attribute Name | Details |
| Processing Service | Cutting, full-roll processing, die-cutting/stamping, and compression molding; adhesive backing available |
| Brand Name | Yida / EDA |
| Model Number | As per client's drawings |
| Color | Black (standard), blue, green; other colors available upon request |
| Material | FKM available upon request |
| Hardness Range | Standard Shore A 60–90 (hardness customizable) |
| OEM/ODM Service | Customizable in any shape and size based on drawings or samples, with tailored thickness, hardness, and pore size; precisely matched to assembly clearances and compression requirements, and suitable for a wide range of demanding sealing applications. |
| Operating Temperature | -20°C to +220°C (short-term up to 250°C); the seal remains effective in high and low-temperature environments. |
| Shape | Flat gaskets, round, square, irregular shapes, and flanged gaskets with holes; shapes can be customized. |
| Size | Thickness: 0.5, 1, 1.5, 2, 3, 5 mm, etc. |
| Tolerance Standard | Made to customer specifications. |
| Quality | 100% inspection. |
| Design Format | 2D & 3D drawings available. |
| Compression Set | ≤ 20% (200°C x 22h) |
| Tensile Strength & Elongation | Tensile strength is approximately 10–15 MPa; elongation is typically 150%–250%. Customizable upon request. |
| Fluorine Content/Grade | Grade A (Standard type, fluorine content approx. 66%): |
| Grade B (Chemical-resistant type, fluorine content approx. 68%): | |
| Grade F / GF (High-fluorine type, fluorine content approx. 70%): | |
| Grade GLT / GBLT (Low-temperature type): | |
| Density | 1.85 ± 0.05 g/cm³ |
| Oil Resistance (Volume Swell) | < 5% (Tested in IRM 903 Oil, 70h @ 150°C) |
| Creep Relaxation | Excellent (Rate < 20%) |
| Surface Finish | Smooth (Standard) / Fabric Finish (Customized) |
| Cutting Precision | ±0.15mm (CNC/Water-jet cutting) |
| Implementation Standard | US Standard: ANSI/ASME B16.21 |
| German/European Standard: DIN 2690, EN 1514-1 | |
| Japanese Standard: JIS B2404 | |
| Chinese National Standard: GB/T 9126 | |
| Performance Characteristics | Resistant to penetration by highly corrosive media; provides a leak-proof seal against both liquids and gases. |
| Resists deformation and hardening under high-temperature and high-pressure conditions. | |
| Suitable for complex chemical fluid environments; serves as a replacement for standard rubber gaskets. | |
| Precision-engineered for a perfect fit and easy installation. | |
| Complies with industrial environmental standards; suitable for use in high-end precision equipment. | |
| Main Application Areas | Sealing for chemical equipment, reaction vessels, and pipe flanges |
| Sealing for automotive engines, fuel systems, and hydraulic construction machinery | |
| Sealing for oil and gas equipment, hydraulic valves, and pump bodies | |
| Sealing for new energy equipment, high-temperature instruments, and chemical instrumentation | |
| Sealing for aerospace components and heavy machinery handling corrosive media | |
| Warranty | If the item is kept according to the conditions mentioned (temperature <30°C, humidity <70%, no direct light), we will replace the product free of charge if it has not been opened and it has failed because of material aging - under the condition that the failure is not due to human error and is verified upon inspection - no later than three years from the date of delivery. Failures due to wrong installation or use outside the specified scope are not going to be covered by the warranty. |
| Production Capacity | Monthly production exceeds 300 tons. |
| Lead Time | Usually, for standard-sized products, the delivery time is 15 days after the order has been confirmed. It generally takes 1–2 weeks to make prototype or first-article samples; if it is necessary to create a mold, a production mold is ready in 10 days; and on average, mass production lead time is 2–3 weeks after sample approval. |
| Packaging | Packed in PE bags, then in cartons |
| Selling Units | Single unit / 1 pc |
| Single Package Size | As per the buyer's request |
| Single Gross Weight | As per the buyer's request |
| Shipping Method | By sea, air, or express |
| Port of Loading | Dalian Port or as per the buyer's request |
| Certificates | IATF 16949 (Automotive Quality Management System) |
| AS9100D (Aerospace Quality Management System) | |
| ISO 14001 | |
| ISO 9001 | |
| RoHS 2.0 |
Compatibility reference for chemical resistant FKM rubber gasket with common media:
| Chemical Media | Tolerance Rating | Notes |
| Sulfuric acid (concentration ≤98%) | ★★★★★ | Long-term stability |
| Nitric acid | ★★★★★ | Recommended |
| Hydrochloric acid | ★★★★☆ | Suitable for low to medium concentrations |
| Phosphoric acid | ★★★★★ | Excellent |
| Diesel | ★★★★★ | Recommended |
| Gasoline | ★★★★★ | Recommended |
| Lubricating oil | ★★★★★ | Recommended |
| Hydraulic oil | ★★★★★ | Recommended |
| Methanol | ★★★☆☆ | Concentration and temperature verification required |
| Ethanol | ★★★★☆ | Generally suitable |
| Acetone | ★★☆☆☆ | Long-term contact not recommended |
| MEK (Methyl ethyl ketone) | ★☆☆☆☆ | Not recommended |
| Aromatic hydrocarbons | ★★★★☆ | Operating conditions verification required |
| Hydrofluoric acid | ★☆☆☆☆ | Not recommended |
| Amine-based media | ★★☆☆☆ | Special formulation required |
Note: The data above is for reference during model selection; actual application requires a comprehensive assessment based on factors such as medium concentration, operating temperature, pressure, and contact duration.
Applications:
Seal for chemical equipment, reaction vessels, and pipe flanges.
Automotive engines, fuel systems, and construction machinery hydraulics.
Oil and gas equipment, hydraulic valves, and pump housings sealed.
New power equipment, high-temperature instruments, and chemical process instrumentation.
Aerospace components and sealing of corrosive media in heavy machinery.
Manufacturing Center:
Rubber Compounding & Vulcanization: We're building on 1,000+ tried and tested formulations and the usage of foreign raw rubber. Adding to this, there's a barcode-based error-prevention system that helps us offering consistent physical properties of various batches and elongated product service life.
Precision Mold Making: To achieve the dimensional precision of complex sealing components, molds are made on Japanese Makino machining centers which reach the tolerances of ±0.005mm.
Automated Molding: Fully automated molding processes of compression and injection ensure that the product consistency is kept at a high level together with production efficiency and large-scale output.
Rubber compounding
Vulcanization
Mold
Injection molding
Testing Center:
Material Evaluation: Ensure rigorous compliance with testing standards CPK and MSA, performing full-scale evaluations of most important parameters like hardness, tensile strength, and compression set.
Automated Full Inspection: Deployment of an AI-driven CCD visual inspection system making it possible to carry out automatically 100% of the inspections for flash, material shortages, dimensional anomalies, and surface impurities with defect detection capabilities of a few microns level.
Materials analysis equipment
Automatic inspection equipment
About Yida:
It was 1993 when Yida started the long road of making things with great skill. Our base in Dalian is the starting point from where we have gradually gone into Japan and Vietnam, making an all-around production and delivery network worldwide.
Scale and Capacity: We have about 450 workers and a very well-equipped, smart factory area of 37,000 square meters; responsively, producing more than 300 tons monthly on average.
R&D Expertise: With the support of more than 1,000 validated precision formulas, we are very good at turning around any difficulties that refer to technology.
Global Presence: The sealing products made in Yida for the premium sector are the ones which the industrial markets all over the world, like the US, Germany, Russia, Japan, France, and Saudi Arabia, put their faith in.
Quality Certifications:
A dedication to quality is at the heart of everything Yida does. Besides the usual ISO 9001 and ISO 14001 certifications, we are proud of our dual "passports" to high-end manufacturing capabilities:
Industry Standards: Our quality management system is fully compliant with IATF 16949 (automotive industry) and AS9100D (aerospace) standards (Certificate No.: 19318).
Multi-dimensional Compliance: All our products are compliant with RoHS 2.0 environmental standards. Besides, we can provide UL and NSF/WRAS certificates for our products that are safe for food-grade, specialized flame-retardant, and eco-sensitive uses.
Serving Global Fortune 500 Companies:
Yida continues to provide excellent products and services to the global industrial manufacturing, automation control, new energy, electrical, and automotive sectors. We have entered into long-term agreements with many of the world's leading companies. Our customer base covers a wide range of industries including automotive electronics, industrial automation, intelligent manufacturing, new energy, power equipment, and fluid control. Some of our customers are Delphi Technologies, Alpine Electronics, Nidec, Siemens, Panasonic, Omron, SMC Corporation, CATL, China Electric Equipment Group, and Rongke Power.
We provide an extensive 3-year warranty for every order entrusted to us：
Warranty Terms: When maintained under the designated storage conditions (temperature <30°C, humidity <70%, kept sealed and away from light), Yida provides a total and costless replacement up to three years after delivery if any material aging or failure occurs except those caused by human error.
Exhibition Highlights:
2025 Dalian International Industrial Expo
Showcasing our "Digital Sealing Engine" as a core highlight, Yida demonstrated its comprehensive capabilities in addressing extreme operating conditions within the context of intelligent manufacturing. We also engaged with 900 industry pioneers on-site to explore deep supply chain collaboration.
2025 Shanghai Long-Duration Energy Storage Technology Exhibition
In line with the "Dual Carbon" strategy, we have introduced a new series of sealing matrices that are high resistance to temperature, corrosion, and are also very durable. Tailored for the latest energy storage systems, this series is intended to break through the technical limitations concerning long-term airtightness in extreme environments.
