Possible to expand to extremely low densities. Our powerful dry, unexpanded microspheres add countless advantages to your production process and its outcome. Not only will Expancel DU let you achieve desired surface aesthetics in artificial leather and wallpaper, it'll also help your produce plastics that are light and smooth. On top of that it can stand high shear forces and pressure during processing.

The microspheres in Expancel DU expand with heat and are preferably used in systems where no water can be added. Expandable at temperatures between 80°C - 235°C (176°F - 455°F), our microspheres will unleash a range of essential benefits for product developers in different industries.

Bursting with benefits like

Expancel DU
  • Saves costs and improves bulk and thickness in industrial nonwoven textiles
  • Controlled and uniform cell structure in underbody coatings and sealants
  • Low weight, dry surface and cost savings in silicone rubber
  • A look of suede or nubuck in artificial leather

Specification and SDS. The beauty is in the science.

Speak to our experts about the various grades and characteristics of Expancel DU.

Variations of Expancel Particle size(1) Temperature start (°C) Temperature maximum (°C)(2) Density (kg/m3) Solvent chemical resistance(3) Safety Data Sheet
551 DU 40 10–16 94–99 141–149 ≤ 17 3 SDS >
461 DU 20 6–9 100–106 137–145 ≤ 30 4 SDS >
461 DU 40 9-15 98-104 142-150 ≤ 20 4 SDS >
051 DU 40 09-15 108-113 142-151 ≤ 25 4 SDS >
031 DU 40 10-16 80-95 120-135 ≤ 12 3 SDS >
053 DU 40 10–16 96-103 138-146 ≤ 20 3 SDS >
093 DU 120 28-38 120-130 188-203 ≤ 6.5 5 SDS >
909 DU 80 18-24 120-130 175-190 ≤ 10 5 SDS >
920 DU 20 5-9 120-145 155-175 ≤ 25 5 SDS >
920 DU 40 10–16 123-133 168-178 ≤ 17 5 SDS >
920 DU 80 18-24 123-133 180-195 ≤ 14 5 SDS >
920 DU 120 28-38 122-132 194-206 ≤ 14 5 SDS >
930 DU 120 28-38 122-132 191-204 ≤ 6,5 5 SDS >
950 DU 80 18-24 138-148 188-200 ≤ 12 5 SDS >
951 DU 120 28-38 133-143 190-205 ≤ 9 5 SDS >
980 DU 120 25-40 158-173 215-235 ≤ 14 5 SDS >
043 DU 80 16–24 95–115 147–167 ≤ 10 5 SDS >

(1) "Particle size of Expancel Microspheres"
(2) "Thermomechanical analysis of Expancel MS"
(3) "Chemical resistance of Expancel MS"

Delivered in fiber drums, net weight 50 kg or in big-bags 500 kg.

Use the product within three years after production date, if unopened.

Not all grades available in all locations. Check local sales office for availability.

Why buy from AkzoNobel

  • AkzoNobel developed and has produced Expancel for more than 35 years
  • Own production plants in Sweden, China, USA and Brazil
  • We deliver a total solution, from top quality microspheres to product development support and on-site expansion systems
  • Experienced sales and application engineers will work closely with you all the way

Product specifications

Contact us about Expancel

We are here to help.

We have an R&D organization with the capabilities and expertise to maximize the benefits of Expancel in your application.