Phenoset Microspheres - Description

PHENOSET® microspheres are small, individual, hollow spheres of phenolic resin that are lightweight and mechanically strong. Reddish-brown in appearance, they are primarily used as hollow functional filler.

Phenoset Microspheres

More information about Phenoset Microspheres

  • Weight Reduction - The low density of PHENOSET® microspheres helps to reduce the weight of the finished product.

  • Machinability and Sandability - PHENOSET® microspheres have excellent compatibility with resins. When used in syntactic foams, PHENOSET® microspheres make it easy to machine with clean and precise edge cuts.

  • Superior Compatability with Resins - PHENOSET® microspheres can form excellent chemical bonds with organic base resins such as epoxy, polyester, polyurethane and others to produce a composite with very good physical properties. No coupling agents are required to achieve bonding of the PHENOSET® microspheres and resin matrix. 

  • Improved Surface Properties - The inherent bonding of the spheres with the base resin prevents the filler from scarring or popping from the surface of the composite. Hence, PHENOSET® microspheres can contribute to the outstanding smoothness of composites. 

  • Strength to Density Ratio - PHENOSET® microspheres, although lightweight, have comparatively high mechanical strength. 

  • Improved Flowabilitiy - PHENOSET® microspheres, being spherical, roll easily over one another. This helps improve the flowability of the matrix to which they are added.

  • Low Viscosity for High Loading - The spherical shape of PHENOSET® microspheres gives lower resin viscosity when compared to equivalent loading of other irregular-shaped fillers.

  • Good FST Properties - PHENOSET® microspheres can char without emission of toxic fumes and with low emission of smoke. Used in aerospace applications, the PHENOSET® microspheres can contribute good FST properties as required.

  • Ablative Property - PHENOSET® microspheres, being phenolic and hollow in nature, acts as a sacrificial media to protect and insulate structures subjected to extreme thermal environment. They absorb heat, burn off without smoke and remove heat from the structure.


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