Onondaga Construction Systems, Inc. (OCS), established in 1982, is a construction company specializing in Sprayed-on Fire Resistive Material, Intumescent Coatings and interior construction .  OCS is an applicator of fireproofing for the following manufacturers; A/D, CAFCO, Carboline, and Grace.  We specialize in the following products of the fore mentioned manufacturers; A/D Firefilm III; CAFCO 300, 400 & Fendolite; MK-6, Z106, Z146 & Retroguard.  The interior construction includes: Metal Framing, Insulation (Fiberglass, Spray Foam, Sprayed Cellulose), Gypsum Wall Board Assemblies, Acoustical Ceiling Assemblies, Gypsum Wallboard Access Panels and Acoustical Wall Panels.