The new CHEMEON eTCP™is the first trivalent conversion coating and anodic seal with distinct visual color that indicates aluminum and other light metal parts are coated and protected. One Look and You know your parts are protected. The patent pending CHEMEON eTCP chemistry provides one-step superior corrosion protection and adhesion performance that exceeds MIL-DTL-5541 and MIL-DTL-81706 for immersion, spray, brush and touch up pen. CHEMEON eTCP™ The Power of Protect You Can See.