Keystone Laminates stocks a wide range of high-pressure laminates, available in 4x8-ft. sheets. The line includes 1/4-in. thick double-sided phenolic with a black core, 1/4-in. double-sided material (suitable for building skateboard ramps), and others. (215) 443-8651, KeystoneLaminatesInc.com. AWFS Fair booth #2528.