Design Polymerics 2545 Fiberglass Protective White Coating is a high-performance, water-based encapsulant engineered to restore and protect fiberglass insulation in HVAC and indoor air quality applications. Designed for professional use, this advanced coating creates a flexible, durable film that helps prevent loose fibers from entering the airstream while improving the integrity of aging or damaged insulation systems.

The formulation incorporates an EPA-registered preservative that inhibits the growth of mold, mildew, and fungus on the cured coating surface. This added protection makes DP 2545 especially valuable in environments where moisture and microbial growth are concerns. Its synthetic latex base delivers strong film formation with low odor and very low VOC content, supporting use in occupied spaces and sensitive IAQ projects.

DP 2545 is engineered for application flexibility. It can be applied using airless spray equipment, brush, or roller, allowing contractors to adapt to field conditions. The coating bonds effectively to common HVAC substrates and can be applied directly to galvanized steel without the need for a primer, helping streamline installation and reduce labor time.

Once cured, the coating remains flexible and durable across a wide service temperature range, supporting long-term performance in demanding mechanical environments. It meets key industry standards including NFPA 90A/90B, UL 723, and ASTM E-84 surface burning characteristics, making it suitable for duct system applications.

Key Features

• Water-based fiberglass encapsulant with EPA-registered preservative
• Helps resist mold, mildew, and fungus on the coating surface
• Flexible, durable film reduces airborne fiberglass fibers
• Low odor, low VOC; applies by spray, brush, or roller
• Adheres to galvanized steel without primer and meets NFPA/UL standards