Moisture Blush Recap + Intro to Amine Blush скачать в хорошем качестве

Moisture Blush Recap + Intro to Amine Blush

✅ Definition of Amine Blush (in Coatings): Amine blush is a surface defect that occurs during the curing of epoxy coatings, particularly epoxy systems that use amine-based hardeners. It appears as a waxy, greasy, or cloudy film on the surface of the coating and is caused by a reaction between amine hardeners, moisture, and carbon dioxide in the air. ⸻ 🔬 What Causes Amine Blush? • Humidity (moisture in the air) • CO₂ in the atmosphere • Reaction with the amine curing agent in the epoxy This reaction forms a carbamate layer (amine blush) on the surface. ⸻ 🚫 Why It’s a Problem: • Prevents adhesion of topcoats or additional layers • Can lead to delamination or coating failure • Interferes with appearance (cloudiness, hazy finish) ⸻ 🧼 How to Remove It: Amine blush is not water-soluble but can usually be removed with: • Warm water and soap (before sanding or recoating) • Solvent wipe (e.g. with isopropyl alcohol) • Always clean the surface before sanding to avoid spreading it Always follow your asset owners Specifications. mainline #pipeline #coating #inspector #coatinginspector #coatings #mainlinewelds #CIP2 #NACE #AMPP #corrosion #ROW #PI #Oilandgas #ISO #corrosionprotection #corrosionpreventing #protectiveciatings #internalcoatings #PipelineCoating #Industrial #EpoxyCoatings #SSPC #PipelineMaintenance #tank #tankinspections #amineblush #coatingapplication #coatingfails