Heatshield Products 312051
Heatshield Products 312051 Exhaust Wrap Kit User Manual
Model: 312051
1. Introduction
The Heatshield Products 312051 Exhaust Wrap Kit is designed to manage heat in automotive exhaust systems. This kit includes a 2-inch wide by 50-foot exhaust wrap and stainless steel locking ties. The primary function of the exhaust wrap is to maintain hotter exhaust gases, which decreases their density and allows them to exit the system more rapidly. This process, known as increased exhaust scavenging, contributes to lower intake temperatures and can lead to improved horsepower.
Additionally, the exhaust wrap significantly reduces radiant heat damage and can lower under-hood temperatures by up to 50 percent. It also helps to keep heat out of the driver's compartment and protects other sensitive components from heat damage. The wrap features a vermiculite coating, enabling it to withstand continuous temperatures of 1200°F (649°C) and intermittent temperatures of 2000°F (1093°C). Made from high-quality fiberglass yarn, it is asbestos-free, water-resistant, and fungus-resistant.
2. Safety Information
When handling the exhaust wrap, it is crucial to prioritize safety. The material is fiberglass-based and can cause skin irritation or respiratory issues if proper precautions are not taken.
- Eye Protection: Always wear safety glasses or goggles to protect your eyes from airborne fibers.
- Respiratory Protection: Use a dust mask or respirator to prevent inhalation of fiberglass particles.
- Hand Protection: Wear gloves to protect your hands from irritation.
- Skin Protection: Long-sleeved shirts and long pants are recommended to minimize skin exposure.
- Ventilation: Work in a well-ventilated area to disperse any airborne fibers.
- Disposal: Dispose of any waste material properly according to local regulations.
3. Package Contents
Your Heatshield Products 312051 Exhaust Wrap Kit should contain the following items:
- One (1) roll of Heatshield Products Exhaust Wrap (2 inches wide x 50 feet long)
- Stainless Steel Locking Ties
- Instruction Sheet
4. Installation Instructions
Follow these steps for proper installation of the exhaust wrap. Ensure the exhaust system is cool before beginning installation.
- Preparation: Ensure the exhaust pipes or headers are clean and free of oil, grease, or rust. It is recommended to wet the exhaust wrap slightly before application. This helps to minimize airborne fiberglass fibers and makes the material more pliable for wrapping.
- Starting the Wrap: Begin wrapping at the furthest point from the exhaust outlet (e.g., at the header flange). Overlap each pass by approximately 1/4 to 1/2 inch (6-12 mm) to ensure complete coverage and insulation. Maintain consistent tension as you wrap to achieve a tight, secure fit.
- Securing the Wrap: Use the provided stainless steel locking ties to secure the wrap at the beginning, end, and at various points along the length of the pipe, especially around bends or junctions. For optimal security, additional stainless steel ties or clamps can be used. When cutting the wrap, apply superglue to the cut ends to prevent fraying.
- Finishing: Once the desired section is fully wrapped, secure the end of the wrap with a stainless steel locking tie. Ensure all ties are pulled tight to prevent the wrap from unraveling.
- Initial Curing: After installation, the exhaust wrap may emit a slight burning odor during the first few heat cycles as the binders cure. This is normal and will dissipate over time. Ensure adequate ventilation during this initial period.

Image 1: A roll of Heatshield Products exhaust wrap, showing its woven texture and beige color. This image illustrates the material before application.
5. Operating Principles and Benefits
The Heatshield Products exhaust wrap functions by insulating the exhaust system, which keeps exhaust gases hotter. This principle leads to several performance and protective benefits:
- Increased Horsepower: By maintaining higher exhaust gas temperatures, the density of the gases decreases, allowing them to exit the system faster. This improved exhaust scavenging can lead to an increase in engine horsepower.
- Reduced Under-Hood Temperatures: The wrap effectively contains heat within the exhaust system, reducing radiant heat transfer to the engine bay. This can lower under-hood temperatures by up to 50%, protecting sensitive components from heat degradation.
- Protection of Components: Lower ambient temperatures around the engine protect wiring, hoses, and other components from heat damage, extending their lifespan.
- Improved Cabin Comfort: By preventing heat from radiating into the vehicle's interior, the exhaust wrap can contribute to a cooler and more comfortable cabin environment.
- Durability: Rated for continuous use at 1200°F (649°C) and intermittent use up to 2000°F (1093°C), the wrap is designed for high-temperature environments.
6. Maintenance
Once installed, the Heatshield Products exhaust wrap requires minimal maintenance. It is designed for long-term durability in harsh automotive environments.
- Periodic Inspection: Periodically inspect the wrapped sections for any signs of fraying, damage, or loosening of the stainless steel ties.
- Cleaning: The wrap is water and fungus resistant. If cleaning is necessary, a gentle wipe with a damp cloth is usually sufficient. Avoid harsh chemicals or abrasive cleaners.
- Repair: If minor damage occurs, it may be possible to patch the area with additional wrap and ties. For significant damage, replacement of the affected section is recommended.
7. Troubleshooting
While the exhaust wrap is generally straightforward, consider the following if issues arise:
- Fraying at Ends: If the ends of the wrap begin to fray, ensure they were properly sealed during installation. Applying superglue or a high-temperature sealant to the cut edges can prevent this.
- Loose Wrap: If the wrap becomes loose, it may indicate insufficient tension during installation or loose ties. Re-tighten or add more stainless steel ties as needed.
- Persistent Odor: A slight burning odor is normal during initial use. If a strong or persistent burning odor continues after several heat cycles, inspect for any contact with flammable materials or improper installation.
- Reduced Effectiveness: Ensure the wrap is applied with sufficient overlap and tension. Gaps or loose sections can reduce its insulating properties.
8. Specifications
| Feature | Specification |
|---|---|
| Product Model Number | 312051 |
| Dimensions | 2 inches (5.08 cm) wide x 50 feet (15.24 meters) long |
| Thickness | 1/16 inches (1.59 mm) |
| Continuous Temperature Rating | 1200°F (649°C) |
| Intermittent Temperature Rating | 2000°F (1093°C) |
| Material | High-quality Fiberglass Yarn with Vermiculite Coating |
| Features | Asbestos-free, Water Resistant, Fungus Resistant |
| Included Accessories | Stainless Steel Locking Ties |
9. Warranty and Support
For information regarding product warranty, returns, or technical support, please refer to the official Heatshield Products website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Manufacturer: Heatshield Products
Website: www.heatshieldproducts.com (Note: This is a placeholder link, please refer to the official manufacturer's website for accurate contact information.)
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