Glass microspheres can be mixed with polyester resin to obtain a thick texture. This mixing is mainly used to fix plugs and fins but also to repair boards. The microspheres are kept in a sealed clear plastic jar to secure their transport.
420cc (0.42litres, net weight 50g) and 1000cc (1litre, net weight 120g) jars available.
Precautions while using :
Glass microspheres are toxic for your lungs. Be very careful when using them and always wear a carbon filter mask.