Noxtite® RE200 and RE300 SERIES – Bisphenol curable FKM

Unimatec has continuously provided reliable, high performing, quality Noxtite® FKMs for decades. Through our dedication to material innovation, we are able to introduce leading products for challenging applications. Noxtite® FX2803, a co-polymer with extreme heat resistance, allows compounders and end users to enter previously uncharted application areas. Our 200 series FKMs come in various viscosities ranging from 25 to 100, with 66% fluorine content. The following table shows some of the more commonly used bisphenol curable co-polymers.

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Noxtite RE 200 Series - Bisphenol Curable FKM Co-polymers

Noxtite® RE200 bisphenol curable co-polymer FKMs offer a wide range of viscosities, between 20 – 100 polymer mooney, various process cure speeds and solutions for different molding processes.

FX2803, a co-polymer with newly designed molecular structure allows us to step further into extreme application areas with outstanding compression set, stress relaxation and heat performance.

Product Overview – Noxtite®RE 200, Bisphenol Curable Co-polymers

Noxtite FX2803 – Outstanding Compression Set Performance

Compression Set

Formulation: Polymer: 100phr, MT-b:25phr, Caldic#2000:5phr, MgO#150: 3phr, AF-50:4phr, B-35F:1ph
Press Cure (180°C/10min) Post Cure (230°C/22hr)


Noxtite® RE - Precompounds

We also provide customized FKM pre-compounds containing curatives, activators and adhesion promotors, for ease of processing, exceptional process stability and to achieve remarkably low variations of physical properties or curing behavior.

Noxtite® RE series pre-compounds allow our customers to reach a higher quality level in production and further lower the scrap rates.

FKM Precompounds

Noxtite RE300 Series - Bisphenol Curable FKM Ter-polymers

The bisphenol curable FKM product line is completed by our RE300 series ter-polymers. These are standard FKM ter-polymers that offer a higher variability in low temperature performance, fluid resistance and processeability.

Product such as the RE345, with 70% fluorine content performs exceptionally well as the inner layer tube for fuel hose applications.

A selection of most commonly used FKMs can be found in the attached table.

Product Overview Noxtite® RE 300, bisphenolic curable terpolymers

Noxtite® Product Name Specific gravity [g/ccm] ML1+10 @ 121°C F Content (%) Cure System TR-10 °C Suggested Use Typical Properties
Base Gum Copolymer- Bisphenol Curable
RE225 1.8 25 66 Polyol -16 O-rings, seals, gasket, extrusion Good injection molding and mold flow
RE245 1.8 42 66 Polyol -16 O-rings, seals, gasket, extrusion Good mechanical property
FX2803 1.8 100 66 Polyol -16 O-rings, seals, gasket Extremely good high temperature resistance and mechanical properties (Tensile and Tear)
Noxtite® Product Name Specific gravity [g/ccm] ML1+10 @ 121°C F Content (%) Cure System TR-10 °C Suggested Use Typical Properties
Base Gum Terpolymer-Bisphenol Curable
RE345 1.9 35 70 Polyol -9 fuel hose, filler neck, O-rings Excellent chemical resistance with good extrusion property
RE351 1.8 45 68 Polyol -13 O-rings, seals, gasket, extrusion Excellent flow property, chemical resistance
RE353 1.8 26 68 Polyol -13 O-rings, seals, gasket, extrusion Excellent flow property, chemical resistance
RE376 1.8 25 66.5 Polyol -19 O-rings, seals, gasket, extrusion Low temperature, excellent processability
Noxtite® Product Name Specific gravity [g/ccm] ML1+10 @ 121°C F Content (%) Cure System TR-10 °C Suggested Use Typical Properties
Curative and Bonding Activator Containing Precompound of Co- & Terpolymer
RE230L 1.8 30 66 Polyol -16 O-rings, seals, gasket Bisphenol copolymer grade, Short curing time
RE246 1.8 40 66 Polyol -16 Valve stem seals, radial seals Different cure rate to RE 247; Improved IM properties and bonding system incorporated
RE250B 1.8 30 66 Polyol -16 O-rings, seals, gasket Injection molding enhanced, no mold fouling, easy mold release
R 0237 1.8 20 68 Polyol -13 Air hoses, Fuel hoses, Seals Bisphenol terpolymer grade, Injection molding enhanced, no mold fouling, easy mold release