Q1: Why is a specialized varnish necessary for BOPP films?
A: BOPP films have a low surface energy and non-porous structure, making adhesion challenging for standard coatings. This varnish is formulated with specialized resins and adhesion promoters that chemically bond to the film surface, ensuring durable and consistent performance without delamination or cracking.

Q2: What are the primary applications and benefits of coating BOPP films?
A: It is widely used in flexible packaging, pressure-sensitive labels, decorative overlays, and protective films. Benefits include enhanced scratch and abrasion resistance, improved printability, moisture barrier properties, and aesthetic customization (gloss/matte/soft-touch), adding both functional and visual value to the final product.

Q3: Are there specific application or curing requirements for optimal results on BOPP?
A: Yes. For uniform adhesion, surface treatment (e.g., corona/plasma) may be recommended to increase surface energy. Application via gravure, flexo, or coating lines requires precise viscosity control. Curing typically involves thermal or UV processes, depending on the formulation, to ensure full cross-linking and performance stability. Pre-testing under production conditions is advised.