| 摘要 |
<p>Blasting media for removing coatings from sensitive metal and composite surfaces, and a process useful therewith, wherein the blasting media comprise mixtures of water-soluble crystalline sodium sulfate particles having average particle sizes of from 100 to 250 microns, in admixture with flow/anti-caking agents. A process for removing coatings from sensitive hard surface metal composite surface, masonry, stucco, plaster or wood which comprises blasting said surfaces with a high velocity fluid stream containing as a blasting medium water-soluble crystalline sodium sulfate particles, said particles having average particle sizes within the range of 50 to 1000 microns, admixed with a hydrophobic silica or hydrophobic polysiloxane flow/anti-caking agent, or mixture thereof wherein the flow/anti-caking agents is present in an amount of from 0.05 to 2.0 % by weight of the particles.</p> |
