Please note there are postal strikes on the 30th September and 1st October. We use Royal Mail for most of our lightweight parcels, so there may be some delays


Microballoons are tiny glass bubbles, that create an extremely lightweight filler when combined with resins and acrylic resins (such as Paraloid B-72). Micro-cellular, inert, non-toxic hollow glass particles.

Mixed with a 60-80% wt/vol Paraloid in acetone solution it can create a strong, conservation grade filler. Reasonable working time (ethanol can be added to the acetone solutionto delay setting but there is an enhanced toxicity). Can be shaped, sculpted and sanded. Takes a few days to cure to full strength.

Very fine particles (60 micron).

Please wear a respirator when using as particles easily become airborne due to their lightweight nature and tiny size. No specific hazards.

  • Guaranteed safe checkout