Raven 760 high-performance polymer concrete (HPPC) from Raven Lining Systems is designed as a stand-alone resurfacing product used to repair voids, spalls, or exposed aggregate up to 1/4-inch thick per application. The self-priming product may be used as an underlayment to reduce out-gassing for applications of various topcoats. It can be efficiently sprayed or troweled to rehabilitate substrates, providing a suitable surface for the application of a polymer topcoat. It is supplied in a self-contained, pre-measured easy-to-use kit, and can be topcoated three hours after application (at 72 degrees F) with a 14-day re-coat window. 800/324-2810; www.ravenlining.com.