Our insulation sheets are made from advanced multi-layer construction, combining thermal protection, sound deadening, and adhesive backing for a quick and reliable installation. Whether you’re restoring a classic car or upgrading your daily driver, Kool Wrap delivers effective car under bonnet insulation that performs in even the harshest Australian conditions.

Why Under Bonnet Insulation Is Essential

Under bonnet insulation is more than just a comfort upgrade—it’s a practical solution to preserve your vehicle’s condition and performance. The engine bay generates intense radiant heat which can:

• Damage bonnet paint and cause fading or bubbling
• Overheat electrical systems and sensitive components
• Increase cabin temperature and reduce climate control efficiency
• Add unwanted engine noise and vibration

Installing a car under bonnet insulation pad helps block and absorb this heat, while also serving as an effective sound deadening layer. The result is a quieter, cooler, and more reliable driving experience.

Features of Kool Wrap Under Bonnet Heat Shield Kits

Kool Wrap’s under bonnet insulation pad materials are engineered for performance, durability, and ease of use. Each product is built with multi-layered construction for maximum effectiveness.

• Flame-Retardant Outer Layer: Acts as a protective barrier against radiant heat
• Insulating Foam Core: Available in 10mm or 12mm thickness for high-performance insulation
• Heat-Resistant Adhesive Backing: Pressure-sensitive and durable under heat and vibration
• Trim-to-Fit Design: Easily cut with scissors or a utility knife to suit any bonnet shape
• Visually Appealing Finish: Clean and professional appearance once installed

Whether you’re using it as a car under bonnet insulation pad, an engine bonnet heat shield, or a combination heat and sound barrier, Kool Wrap products deliver long-lasting protection.

Applications for Bonnet Heat Insulation

Kool Wrap’s under bonnet insulation range is versatile and suitable for a wide range of vehicles and applications:

• Passenger cars and SUVs
• Off-road and 4WD vehicles
• Classic car restorations
• Motorsport and performance vehicles
• Commercial trucks and utility vehicles
• Electric and hybrid vehicles with added sound control needs

These products are ideal for vehicles exposed to high engine loads, long-distance travel, or harsh environmental conditions where a durable under bonnet insulation pad is essential.

Types of Under Bonnet Insulation Materials Available

Kool Wrap offers a variety of car under bonnet insulation products to suit different needs and budgets:

• Adhesive Heat and Sound Shield Insulation: Features a 10mm thick foam core, flame-retardant outer layer, and strong heat-resistant adhesive for easy installation and effective performance
• Black Under Bonnet Insulation Panels: Made with 12mm thick material for enhanced heat control, finished in a sleek black appearance for custom or OEM-style installations
• Premium Compressed Felt Insulation Sheets: Designed for maximum sound suppression and thermal resistance, perfect for high-end restorations or luxury vehicle upgrades

Each option delivers varying levels of thermal barrier protection and under bonnet insulation, allowing you to select the most suitable product for your specific application.

Benefits of Using a Bonnet Heat Shield

Installing a car under bonnet insulation pad or bonnet heat shield is a simple yet highly effective way to improve vehicle performance and cabin comfort. Key benefits include:

• Reduces Heat Transfer: Protects paintwork and reduces bonnet surface temperatures
• Controls Engine Noise: Minimises road noise, engine drone, and vibration
• Enhances Driving Comfort: Helps keep cabin temperatures lower
• Improves Longevity of Engine Components: Shields wiring and plastics from excess heat
• DIY Friendly: No special tools required for installation

Drivers often overlook the importance of car under bonnet insulation, but the benefits become immediately noticeable once the insulation is installed—especially in high-temperature regions or performance-oriented setups.

Trusted Thermal Solutions Backed by Industry Experience

Kool Wrap has over 20 years of experience in heat shielding and under bonnet insulation. Our products are used by workshops, race teams, vehicle manufacturers, and restoration specialists across Australia.

All under bonnet insulation pad materials are tested to withstand harsh engine conditions and are designed to perform under long-term exposure to heat, vibration, and chemical environments.

Upgrade Your Vehicle with Kool Wrap Under Bonnet Insulation

Investing in proper under bonnet insulation is one of the most cost-effective ways to protect your vehicle, reduce cabin heat, and enhance driving quality. Kool Wrap’s wide selection of bonnet heat shields, car under bonnet insulation pads, and adhesive insulation panels gives you everything you need for a successful installation—whether you’re working on a weekend project or managing a fleet of vehicles.

Kool Wrap makes thermal and acoustic protection accessible, durable, and high-performing for all automotive needs.

Frequently Asked Questions

1. What does under bonnet insulation do?

Under bonnet insulation reduces heat transfer to your bonnet and cabin while cutting engine noise and vibration. It helps protect paint, wiring, and plastics from heat damage.

2. Do I need a specific under bonnet insulation pad for my car?

Most vehicles can use a universal under bonnet insulation pad that is trimmed to fit. Check available space, latch and brace positions, then select the thickness that suits your goals.

3. Is car under bonnet insulation safe near hot components?

Yes. Quality car under bonnet insulation uses flame-retardant outer layers and heat-resistant adhesives designed for engine-bay temperatures.

4. How thick should my under bonnet insulation pad be?

Common thicknesses are 10–12mm. Thicker under bonnet insulation generally offers better sound absorption, while 10mm suits most daily drivers.

5. Will under bonnet insulation affect engine cooling?

Installed correctly, car under bonnet insulation won’t impede cooling. It insulates the bonnet panel, not the radiator or airflow pathways.

6. Can I install a car under bonnet insulation pad myself?

Yes. Clean and degrease the surface, dry-fit the panel, then peel and stick the under bonnet insulation pad. Roll firmly to ensure full contact.

7. How long does under bonnet insulation last?

With correct prep and adhesion, under bonnet insulation can last many years, resisting heat, vibration, and typical engine-bay contaminants.

8. Does car under bonnet insulation reduce cabin noise?

Absolutely. A car under bonnet insulation pad absorbs engine drone and reduces vibration transfer, improving in-cabin refinement.

9. Can I combine different materials for better results?

Yes. Many users pair a thermal shield with a dense under bonnet insulation pad to balance heat reflection and sound absorption.

10. How do I maintain or clean the insulation?

Wipe the under bonnet insulation surface with a damp cloth. Avoid solvents that could soften adhesives or outer skins.