Fire Retardant Additives - DM428

Fire Retardant Additives DM428
Micashield DM393 & DM397


Click to download a file.

Further downloads can be found on our downloads page.  Videos can be found on our videos page.


This ultra lightweight, low density Vermiculite powder has been thermally treated during manufacture, resulting in a completely inert product suitable for use as a fire retardant in both water based and non water based systems.

The thermal treatment removes all organic traces and the resultant powder is non-toxic, smoke free, safe to use and environmentally friendly. DM428 has a carefully controlled particle size distribution ensuring consistency, which can be adjusted to suit individual requirements.


  • Perfect for specialist thin film production
  • Can be re-dispersed or used as a dry additive
  • Fire Retardant additive to Polymer/Plastic systems

Particle Size Analysis

dm428 chart