The Ultra-Thin Flake-Style Capping Compound has been used successfully for decades by the largest and most reliable concrete testing laboratories for testing concrete cylinders for compressive strength testing. With consistent strength from bag to bag and material ready to ship immediately, CappingCompound.com by J.A. CRAWFORD CO. is ready to support your capping compound needs. Please note that volume discounts are available and can significantly reduce overall freight cost. To place an order or request a quote, please contact J.A. CRAWFORD CO.