Search PCOTEC Products

​Yes, polyester resin can sometimes be used over epoxy, but only when the surface condition, cure state, and application goal are properly controlled. The short answer is that compatibility is possible, but it is not automatic.

​In powder coating formulation, the curing system determines how the coating film finally performs after baking. Among the curing agents used in thermosetting powder coatings, TGIC is one of the most widely discussed materials, especially in outdoor polyester systems.

​A durable thermosetting system is never created by resin choice alone. In powder coatings and related thermosetting formulations, long-term performance comes from the interaction of resin backbone, curing chemistry, additive balance, pigment dispersion, and processing conditions.

​In powder coating production, coating defects are rarely caused by a single factor. Issues such as pinholes, craters, orange peel, poor leveling, gloss inconsistency, and scratch sensitivity often appear when the balance between resin systems, curing agents, fillers, and additives is not optimized.

​An indoor physical matting agent is a functional coating additive designed to reduce gloss and control surface appearance through a purely physical mechanism. Instead of reacting chemically with the resin system, it creates micro-scale surface texture and light-scattering structures in the cured film, producing a consistent matte or low-sheen finish.

​Yes. In most thermoset coating systems, a curing agent directly promotes crosslinking by reacting with functional groups on the base resin and forming a three-dimensional polymer network.

​In coatings and surface treatment products, additives are small-dosage functional ingredients that help a formula wet the surface, disperse pigments, control foam, improve leveling, and deliver stable performance during application and curing.

​Additives are functional ingredients added in small dosages to fine-tune how a coating, ink, adhesive, or sealant performs during production, application, and service life. Unlike binders, pigments, and fillers that make up the bulk of a formula, additives act as performance controllers.

​Titanium dioxide TiO2 is one of the most widely used white pigments and functional fillers in coatings, plastics, sealants, and construction materials. It delivers high opacity, brightness, and color stability, making it essential in architectural and industrial formulations.

​Outdoor powder coatings are judged by what happens months and years after application: gloss retention, color stability, chalking control, impact durability, and long-term adhesion under heat, rain, salt, and UV exposure.

​In coating applications where surface quality is tightly specified, achieving the right texture and finish is often the most challenging part of system design. This is especially true for powder coatings used on equipment, racks, and components that require clean material declarations and stable, repeatable appearance performance.

​Polyester resin is one of the most widely used film-forming binders in modern thermosetting coating systems, especially powder coatings. Its value comes from a rare combination of properties that matter in real production: strong weathering performance, stable gloss and color retention, good mechanical strength, and dependable chemical resistance when the system is formulated and cured correctly.