Dictionary CorrosionCorrosive ProcessPack Rust Pack Rust Last updated: September 20, 2016 What Does Pack Rust Mean? Pack rust is a type of corrosion and corrosion product that occurs due to atmospheric conditions within restricted spaces, such as crevices and joints of metallic components. This term is important because it is used in the study of corrosion damage and protective coatings required for joints, metallic plates and other components that are packed to form vital structures, such as road and railway bridges. Advertisement Corrosionpedia Explains Pack Rust Pack rust refers to an electrochemical reaction that results in rust formation within the joints and packs of ferrous metal sheets and components of different structures. The term is also used during bridge inspection to report and explain the parts of bridges displaying the signs of deterioration by rust packed in between steel plates and joints. Rusting occurs due to electrochemical reactions. Normal rust does not cause bulging and distortion, but a significant pack rust feature is the bulging of parts of parallel plates. If the problem is not resolved, structural strength will reduce continuously, creating potentially serious failures. Pack rust mainly affects ferrous materials. To prevent pack rust, the surfaces must be treated with rust-preventive coatings at the time of component and plate assembly. If pack rust affects a structure, the rust must be removed. Advertisement Share This Term> Related Terms Corrosion Crevice Corrosion Occluded Cell Deposit Corrosion Bumps Rust Rust Bloom Related Reading An Expert Guide To Accurate Cathodic Protection Measurements Leveraging AI for Enhanced Corrosion Control in Oil Pipelines Corrosion Jobs: How to Become a Corrosion Technician in 2023 The 6 Corrosive Components That Can Be Found in Crude Oil Rust in Bolted Systems: Causes and Prevention Fouling in Heat Exchangers: Detection, Prevention and Removal Tags Corrosion Corrosion Corrosion 101 Markets Scientific Properties Type of Corrosion Corrosive Process Electrochemical Property Highways and Bridges Trending Articles Corrosion An Introduction to the Galvanic Series: Galvanic Compatibility and Corrosion Chemical Compound 5 Most Common Types of Metal Coatings that Everyone Should Know About Asset Management Understanding Aluminum Corrosion Asset Management If Copper is a Noble Metal then Why Are My Pipes Corroding?