Radiant heat from exhaust tunnels, floor pans, and firewalls transfers directly into a vehicle's cabin unless something stops it first. Diamondflect Shield from Heatshield Products blocks up to 90% of that radiant heat with a flexible, dual-layer thermal barrier that peels, sticks, and stays put on almost any clean, smooth surface.
Dual-layer insulation does double duty. The construction combines a reflective foil layer with a fiberglass and PET blend core, so the material reflects heat while simultaneously absorbing vibration and reducing road, engine, and drivetrain noise. One sheet addresses two problems.
Rated for serious underhood temperatures. Diamondflect Shield handles continuous exposure up to 900°F and intermittent spikes up to 1800°F, so it holds up in demanding locations like transmission tunnels, exhaust-adjacent floor sections, and firewall surfaces where heat accumulates over long drives.
Cutting and installing takes minutes. The material trims cleanly with standard scissors or a utility knife, accommodating irregular shapes and tight corners without special tools. The pressure-sensitive adhesive backing bonds directly to the surface, and the included Cool Foil Tape seals all seams and edges for a professional, airtight finish.
OEM-grade materials built in the USA. Every sheet is manufactured from high-temp, automotive-grade materials to OEM durability standards, so it will not delaminate, sag, or lose adhesion across temperature cycles.
Product Benefits
- 90% Radiant Heat Reflection: Blocks the majority of radiant heat before it reaches cabin surfaces or sensitive components.
- Dual-Layer Construction: Fiberglass and PET blend core reduces heat transmission and dampens noise simultaneously.
- 900°F Continuous / 1800°F Intermittent Rating: Handles the thermal demands of firewalls, floor pans, and transmission tunnels.
- Peel-and-Stick Installation: Adhesive backing bonds to most clean, smooth surfaces without additional fasteners or adhesive.
- Easy Trimming: Flexible material cuts to any shape with scissors or a utility knife for precise, custom fitment.
- Cool Foil Tape Included: Seals seams and edges for a clean, finished appearance and complete thermal coverage.
- Made in the USA: Manufactured from automotive-grade materials to OEM durability standards.
About Heatshield Products: Heatshield Products designs and manufactures thermal management solutions for automotive, motorsport, and industrial applications. All products are made in the USA from high-temperature materials engineered to reduce heat intrusion, protect components, and improve overall vehicle comfort and reliability.
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