Expandable microspheres

Our TEM Series thermally expandable microspheres are composed of a thermoplastic polymer closed-shell where liquid hydrocarbon is encapsulated. When heated, the hydrocarbon contained inside suddenly expands, and the shells soften, forming micro-bubbles, resulting in an great increasing volume of the microspheres up to 80-100 times. The density of expanded microspheres can be lower than 30 kg/m3(0.03 g/cm3) which makes them an ideal lightweight filler and a foaming/blowing agent for all kinds of plastics and rubber.



TEM Series is available in either expanded or unexpanded forms, in wet or dry, and even masterbatch form. They work well in systems with or without heat or water. We offer a variety of chemical compositions to give expansion at different temperatures.

Wide range of delivery form and expanded sizes makes it possible to achieve a lot of surface effects, including thickness, matting, smoothness and roughness. The very low density gives a significant weight reduction even at small dosages.


Features and benefits

● Lightweight

● Reduced cost 

● Surface modification/space improvement

● Structure/space improvement

● Thermal insulation/low thermal conductivity

● Flexibility/compressibility


General Shades

● LD: low temperature unexpanded dry powder;  LDE: low temperature expanded dry powder

● LW: low temperature unexpanded wet powder; LWE: low temperature expanded wet powder

● MD: medium temperature unexpanded dry powder

● HD: high temperature unexpanded dry powder

● HD180C, HD190B, HD190C are also available in masterbatch (MB) form.


Downlowd our brouchure for Expandable Microspheres - Saner Chemical


copyright © 2021 SANER CHEMICAL AND TECHNOLOGY CO ., LTDNO.2021013966-1