Dykem Blue Layout Spray 12-OZ IMPORTANT NOTE: Aerosol sprays are shipped ground only. No air shipping available for this item. Machine shop operators depend on Dykem® Steel Blue Layout Fluids to scribe sharp, clear, precise lines. When applied, our layout fluids provide a uniform deep blue color that prevents glare and dries in minutes. All Dykem® Layout Fluids create an extremely thin film which adds practically no thickness to the work piece and remains flexible without cracking and chipping.