Along with the aqueous medium, additives such as miscible coalescing solvents (e.g., diethylene glycol butyl ether) to facilitate blending and dilution, flexible resin materials (e.g., latex-based or aqueous phenoxy resins), and pH adjusting agents (e.g., triethanolamine) may also be incorporated, as described in the above-mentioned U.S. Pat. No. 5,552,186.