General Purpose FKM (Bisphenol Cured)BDT Series Fluoroelastomer (Terpolymer)
Overview
BDT Series: Advanced Curative-Incorporated Terpolymer FKM for Aggressive Fluid Resistance
The BDT Series (Terpolymer FKM) is a high-performance line of curative-incorporated fluoroelastomers designed to surpass standard copolymers in the most demanding environments. By utilizing a terpolymer backbone (VDF/TFE/HFP), this series offers superior resistance to aggressive fuels, oils, and chemical solvents, making it the ultimate choice for automotive, aerospace, and industrial fluid systems. Featuring an integrated curing system, the BDT series ensures exceptional batch-to-batch consistency and optimized scorch safety across a wide viscosity range. From the low-viscosity BDT2461E for high-speed extrusion to the Arctic-grade BDTL40P for superior low-temperature flexibility, these polymers deliver outstanding hot tear resistance, metal bonding, and flawless mold release, providing a reliable sealing solution for complicated geometries, high-pressure oil seals, and low-permeability fuel hoses.
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Superior Fluid Barrier
The terpolymer structure provides significantly enhanced resistance to fuels and chemicals compared to traditional FKM copolymers.
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Precision Curative Integration
Built-in curing agents eliminate mixing errors, providing a fast cure rate and consistent physical properties for every production run.
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Arctic-Grade Flexibility (BDTL Series)
The BDTL40P grade is specifically modified to maintain sealing integrity in extreme cold without sacrificing fluid resistance.
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High-Fluorine (HP) Options
Grades like BDT601HP offer high crosslinking and maximum chemical resistance for critical industrial gaskets.
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Efficient Processing
Specialized grades like the BDT246 Series allow for shortened post-cure times at lower temperatures, reducing energy costs and increasing output.
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Exceptional Mechanical Bonding
High-viscosity grades (e.g., BDT651P) provide the "hot tear" strength required for complex metal-to-rubber bonding in oil seals.
Material & Manufacturing Process
- Chemical Structure: A specialized blend of Vinylidene Fluoride (VDF), Tetrafluoroethylene (TFE), and Hexafluoropropylene (HFP), precisely balanced to optimize fluorine content.
- Clean Polymerization: Manufactured using advanced polymerization techniques to ensure ultra-low impurity levels and excellent rheological stability.
- Compounding Versatility: Fully compatible with standard FKM fillers and additives; can be processed using Internal Mixers or Two-Roll Mills.
Solutions & Application Scenarios
- Automotive Fuel Systems: Low-permeability hoses and injector O-rings handling ethanol-blended fuels and modern additives.
- Oil & Gas Industry: High-viscosity seals (BDT651P) designed to withstand high pressure and aggressive drilling fluids.
- Aerospace & Defense: BDTL Seriessolutions for sealing components that must remain flexible at high altitudes and sub-zero temperatures.
- Chemical Engineering: Gaskets and pump liners requiring the improved barrier properties of a 68-70% fluorine terpolymer.
Technical Processing Guide
- Molding Methods: Optimized for Compression, Injection, Transfer molding, Extrusion, and Calendering.
- Cure Efficiency: Designed for a standard press cure (typically 170°C–180°C) with the ability to achieve full properties through a streamlined post-cure cycle.
- Pro-Tip: For the best surface finish in complicated molds, re-mix (re-mill) the compound prior to molding to ensure optimal flow and air release.
