Primex GW850 Airmex is a high performance ceramic mesh disc used for dry, machine and hand sanding. Suitable for sanding any surface, but especially recommended for soft materials which create a lot of dust – like paint, plasters, coats or wood. The ceramic grain makes it efficient on tough surfaces and very long-lasting. The design and composition of GW850 AIRMEX gives it flexibility and stiffness as the mesh doesn’t break or warp, so there is no risk of damaging the backing pad. It also reduces heat while sanding and has efficient dust suction. Thanks to the presence of corundum in the grit mix, it leaves an impeccable, micro-scratch free finish.