Heatshield Products 181021 Peel-&-Stick Reflective Thermal Shield 90% Heat Block

Peel-and-stick reflective thermal shield, blocks up to 90% radiant heat The Diamondflect Shield from Heatshield Products is a premium peel-and-stick thermal barrier engineered to reflect up to 90% of radiant heat, making it a high-performance solution for protecting critical components in tight, high-heat spaces. Whether you’re dealing with firewalls, transmission tunnels, floor pans, or engine compartments, Diamondflect Shield delivers proven thermal protection without adding unnecessary bulk or weight to your build.

Constructed with a dual-layer design, the outer foil layer deflects radiant energy while the inner insulation dampens heat and noise. This makes it not only effective at heat management, but also useful for reducing unwanted cabin noise—an ideal upgrade for performance vehicles, hot rods, street cars, and custom builds. Its flexibility allows for easy trimming with scissors or a utility knife, ensuring a clean and custom fit for any application.

The integrated adhesive backing simplifies installation—just peel, stick, and press into place. No spray adhesives or mounting hardware required. The material is backed with a strong automotive-grade adhesive that bonds to most clean, smooth surfaces including metal and plastic. This makes it perfect for retrofits, heatproofing modifications, or OEM-style thermal protection.

Diamondflect Shield is tested to meet OEM-grade durability standards and is made in the USA using high-temperature materials built to last. Each kit also includes Cool Foil Tape to seal seams and edges for maximum coverage and heat resistance.

Whether you're looking to improve cabin comfort, reduce the risk of heat-related damage, or get more out of your thermal management system, Diamondflect Shield is the smart, effective, and easy-to-install solution for your next automotive performance project. Capable of reflecting up to 90% of radiant heat Blocks heat and reduces noise with dual layer insulation Adhesive backing sticks to almost any clean smooth surface Flexible and trims easily with scissors or utility knife OEM grade durability tested