ASTM C-580 Flexural Strength - This test method measure flexural strength and modulus of elasticity expressed in pounds per square inch.5,200 pounds per square inchASTM C-579 Compressive Strength - This test method measures compressive strength, the capacity of a material to withstand axially directed pushing forces.12,500 pounds per square inch - Verified. Not tested to failure.ASTM C-307 Tensile Strength - This test measures tensile strength of cured chemical-resistant materials..3,200 pounds per square inchASTM D-4541 Bond Strength To Concrete - This test method measures the strength of a coatings bond to concrete.Concrete fails before POR-15 Rust Preventive Coating. It far exceeds the tensile strength of concrete