Q1: What is the primary function of a reverse topcoat, and how does it differ from a conventional topcoat?
A: Unlike a conventional topcoat applied as the final protective layer, a reverse topcoat is applied underneath decorative or functional layers (e.g., inks, foils, laminates) to improve adhesion, surface uniformity, and stability. It acts as a bonding and leveling base for subsequent processes.

Q2: In which applications is a reverse topcoat most beneficial?
A: It is essential for multi-layer printing, foil stamping, specialty laminations, and coatings on non-porous or irregular surfaces—such as plastics, films, or pre-treated substrates—where direct application of decorative layers may fail due to poor adhesion or surface defects.

Q3: Does using a reverse topcoat affect production efficiency or final product appearance?
A: It enhances production efficiency by reducing waste from adhesion failures and rework. Once cured, it remains transparent and smooth, ensuring the final visual and tactile quality of the product is not compromised. Compatibility with subsequent materials should be tested to optimize performance.