RONDOFIL light-weight mineral filler 1-2 mm 300 g

Rondofil is used for reducing weight or increasing volume in epoxy resins, gypsum, concrete.

Used for making lightweight concrete, composites, ceramics, casting materials...  

Rondofil is also used as a lightweight filler in model construction, decorative material, plant granulate, as a demineralisation compress for historic masonry