Chemically and thermally exfoliated vermiculite fire resistant spray paint

摘要

A spray paint with fire resistant and /or fire retardant properties comprises an aqueous suspension of fine expanded vermiculite particles. The vermiculite particles are from a mixture of 75-99% by weight chemically exfoliated vermiculite and 1-25% by weight of thermally exfoliated vermiculite. The spray paint preferably has a viscosity as measured on a Brookfield test machine, number 6 bob at 20 rpm of 5,500-10,000 cps. The spray paint can be applied to a substrate such as wood. The spray paint can remain stable in storage with the vermiculite remaining in suspension for a period up to 24 months.