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General Purpose FKM (Bisphenol Cured)BDF Series Fluoroelastomer (Copolymer)
General Purpose FKM (Bisphenol Cured)
General Purpose FKM.png

General Purpose FKM (Bisphenol Cured)BDF Series Fluoroelastomer (Copolymer)

BDF Series: General Purpose Curative-Incorporated FKM for High-Precision Sealing
BDF Series (Copolymer FKM) offers excellent compression set resistance and superior rheological properties with a pre-mixed curative system for consistent molding of O-rings and gaskets.

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    Overview

    Superior Compression Set Resistance & Exceptional Molding Consistency

    The BDF Series (Copolymer FKM) is a premier line of curative-incorporated fluoroelastomers engineered to provide the industry's most reliable compression set resistance and rheological stability. By integrating a high-precision pre-mixed curing system, the BDF series eliminates compounding variables, ensuring perfect batch-to-batch consistency and optimized scorch safety. From FDA-compliant food contact grades (BDF403P) to specialized electronic-grade modifications (BDF402P/362P), this series offers a comprehensive viscosity range—from the ultra-low viscosity BDF101P for complex injection molding to the high-strength BDF901P. Designed for high-speed production of O-rings, gaskets, and shaft seals, the BDF series delivers superior hot tear resistance and effortless mold release, making it the definitive solution for high-precision sealing across the automotive, electronic, and industrial sectors.

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    Bisphenol Curable Copolymers FKM Fluoroelastomer

    Product Advantages

    • 01
      Integrated Curing Technology
      Pre-mixed with curative agents to provide excellent scorch safety and a fast, consistent cure rate, simplifying the mixing process for manufacturers.
    • 02
      Elite Compression Set
      Formulated specifically to maintain sealing integrity under long-term thermal and mechanical stress—the critical requirement for O-rings and gaskets.
    • 03
      Application-Specific Grades
      Food Grade:BDF403P is designed to meet FDA compliant specifications for food and beverage equipment.
      Electronic Grade:BDF402P/362P are modified for ultra-clean processing and superior metal bonding in electronic components.
    • 04
      Extreme Flow Control
      Includes BDF101P, an ultra-low viscosity polymer that acts as a viscosity modifier or enables the molding of extremely intricate, thin-walled parts.
    • 05
      Exceptional Mechanical Strength
      High-viscosity grades like BDF901P provide maximum tensile strength and durability for heavy-duty industrial seals.

    Material & Manufacturing Process

    1. Chemical Composition: High-purity Vinylidene Fluoride (VDF) and Hexafluoropropylene (HFP) copolymer with a standard 66% fluorine content.
    2. Advanced Polymerization: Produced using precise chain-architecture control to ensure a narrow molecular weight distribution, resulting in superior rheological properties.
    3. Consistent Mixing: Optimized for both Two-Roll Mills and Internal Mixers, allowing for easy incorporation of fillers and pigments without affecting cure kinetics.
    Bisphenol Curable Copolymers FKM Fluoroelastomer2
    Bisphenol Curable Copolymers FKM Fluoroelastomer3

    Solutions & Application Scenarios

    1. Industrial Sealing: General-purpose O-rings, V-rings, and custom gaskets for pumps, valves, and hydraulic systems.
    2. Consumer Electronics: Precision seals for smartphones, wearables, and high-end appliances (using BDF402P).
    3. Food & Pharma: Seals for coffee machines, bottling lines, and food processing equipment (using BDF403P).
    4. Automotive Aftermarket: High-quality replacement oil seals and engine gaskets that meet or exceed OEM standards.

    Technical Processing Guide

    01
    Standard Curing Profile
    Typically 2–10 min @ 170–190°C press cure, followed by a post-cure of 10–24 hours @ 200–230°C to achieve peak mechanical properties.
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    02
    Processing Note
    To ensure the best surface finish and physical properties, it is highly recommended to remix (re-mill) the compound shortly before molding.
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    Product Specifications

    Application

    Processing Method

    Grade

    ML (1+10) @121°C

    Sp. Gravity

    (g/cm³)

    F %

    Fuel C Vol Change

    TR10​

    (°C)

    Tensile

    (MPa)

    Elong

    (%)

    Duro

    (Shore A)

    Comp. Set %

    (70h @200°C)

    Key Description

    O-rings, Gaskets & Molded Parts

    Compression, Transfer, Injection, & Calendering

    BDF201P

    20

    1.81

    66

    4%

    -17

    11

    200

    78

    16

    Excellent mold flow, improve mold release, good compression set.

    BDF25P

    25

    1.81

    66

    4%

    -17

    13

    260

    74

    21

    Excellent mold flow, improve hot tear strength.

    BDF25CP

    25

    1.81

    66

    4%

    -17

    13

    180

    78

    17

    Fast cure grade, excellent mold flow, no mold fouling.

    BDF30P

    30

    1.81

    66

    4%

    -17

    13.5

    230

    78

    18

    Excellent flow, mold release, and compression set.

    BDF331P

    30

    1.81

    66

    4%

    -17

    13.5

    280

    76

    23

    High elongation grade, good mold flow.

    BDF401P

    40

    1.81

    66

    4%

    -17

    14

    190

    78

    15

    Excellent processability and low compression set.

    BDF402P

    40

    1.81

    66

    4%

    -17

    14.5

    200

    77

    16

    Modified BDF401P for electronic application.

    BDF403P

    40

    1.81

    66

    4%

    -17

    14.5

    200

    77

    16

    Modified BDF401P for food contact application.

    BDF401HP

    42

    1.81

    66

    4%

    -17

    15

    200

    77

    16

    Excellent mechanical properties.

    BDF60C

    43

    1.81

    66

    4%

    -17

    14

    210

    78

    18

    Excellent compression molding behavior.

    BDF45P

    45

    1.81

    66

    4%

    -17

    14.5

    270

    74

    20

    Higher viscosity version of BDF25P.

    Injection & Calendering

    BDF275P

    20

    1.81

    66

    4%

    -17

    11

    245

    76

    22

    Excellent injection behavior, good scorch safety.

    Transfer & Injection

    BDF25IP

    25

    1.81

    66

    4%

    -17

    13

    200

    78

    18

    Injection behavior, low compression set.

    Compression

    BDF601P

    60

    1.81

    66

    4%

    -17

    15

    180

    78

    13

    Optimum resistance to compression set.

    BDF901P

    90

    1.81

    66

    4%

    -17

    18

    200

    77

    11

    Best heat resistance among all BDF grades.

    Oil Seals & Shaft Seals

    Compression, Transfer, Injection, Calendering, & Bonding

    BDF361P

    30

    1.81

    66

    4%

    -17

    13.5

    230

    77

    20

    Hot tear resistance, improved bonding adhesion.

    BDF631P

    60

    1.8

    66

    4%

    -17

    15.8

    260

    76

    19

    Metal bonding for small size oil seals.

    BDF362P

    30

    1.81

    66

    4%

    -17

    13.6

    230

    76

    20

    Modified BDF361P for electronic application.

    Extruded Hoses & Profiles

    Extrusion

    BDF25EP

    25

    1.81

    66

    4%

    -17

    13

    220

    77

    20

    Excellent extrusion behavior, low die swelling.

    Specialty Coating

    Bonding

    BDF302A

    30

    1.81

    66

    4%

    -17

    13.2

    270

    77

    35

    With adhesive promoter for cylinder gaskets.

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