Prepared for severe casting conditions and packaged wet in gallon containers, ready for use. Industrial grid casting, particularly with calcium alloy, is usually very detrimental to normal mold coat compounds. W-10, because of its tough heat-resistant compounds, gives added casting time. It is a very tough binding mold spray, and can be used "as received" for most industrial and calcium grid casting. It contains a preservative for long shelf life. W-10 has also been found very effective as an additive to normal mold coat spray for most SLI grid casting. W-10 should be mixed with other mold coats at a ratio of 1 to 1. When mixing with other mold coats, the material should be mixed at the same consistency normally sprayed on the mold. A mixture of half W-10 and half Wirtz X-400, X-500,
or any other cork spray, will usually give longer cork life. The exact ratio of mixing can be varied to suit individual casting requirements.