Flaw & Crack Pen provides a precise and effective solution for cleaning flaws and cracks and essential for maintenance and repair tasks. Heres why its a valuable addition to your toolkit the Precision Application the pen design allows for precise application and ensuring targeted cleaning of flaws and cracks. Effective Cleaning: Formulated to clean flaws and cracks thoroughly and preparing surfaces for repairs with optimal adhesion. Suitable for a variety of materials including metal or concrete or wood and plastic making it ideal for various repair applications. The pen offers ample cleaning solution in a compact and easy-to-use format perfect for on-the-go repairs: Dries rapidly to minimize downtime and allowing for efficient workflow during repair tasks. Residue-Free: Leaves behind no residue and ensuring a clean surface ready for further treatment or repairs.