
1THERM Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $46.87 | Top Pick! Condition is New, Second Skin Thermal Block Automotive Heat 2 Sq Ft, 1 Sheet, Flat Foil, Silver , FREE SHIPPING | ![]() |
![]() | $47.88 | Condition is New, Second Skin Thermal Block Automotive Heat 2 Sq Ft, 1 Sheet, Flat Foil, Silver , FREE SHIPPING | 100.0% |

Introducing the Second Skin 1Therm 5.5 W/m2.K Thermal Block Heat Foil, a high-performance insulation solution designed to provide exceptional thermal efficiency and energy savings for various applications. This flat, flexible foil sheet is engineered using advanced technology, ensuring superior quality and reliability.
The Second Skin 1Therm Heat Foil boasts an impressive thermal conductivity of 5.5 W/m2.K, making it an excellent choice for insulating environments where maintaining consistent temperatures is crucial. Its high thermal resistance effectively reduces heat loss, allowing for improved energy efficiency and cost savings over time.
The heat foil is crafted from a thin, lightweight material, making it easy to install and transport. Its flexibility allows for easy conformability to various surfaces, ensuring a tight seal and effective insulation. The flat design provides an even surface for optimal contact with adjacent insulation materials, further enhancing its insulating properties.
This thermal block heat foil features a specially formulated aluminum coating on both sides, which reflects radiant heat and acts as a barrier against air infiltration. This dual-action insulation ensures that both conductive and convective heat loss are minimized, providing superior insulation performance.
The Second Skin 1Therm Heat Foil is suitable for use in various applications, including industrial and commercial insulation projects, refrigeration systems, and HVAC applications. Its high thermal performance and versatile design make it a popular choice among professionals seeking reliable insulation solutions.
In summary, the Second Skin 1Therm 5.5 W/m2.K Thermal Block Heat Foil is a high-quality, flexible insulation solution that offers exceptional thermal efficiency and energy savings through its low thermal conductivity, reflective aluminum coating, and tight seal design. Its lightweight, flat, and flexible nature makes it easy to install and transport, making it an ideal choice for a wide range of insulation applications.
Second Skin 1Therm flat foil thermal blocks, also known as radiant heat barriers or insulation blankets, are popular for their ability to reflect or reduce the amount of radiant heat that enters buildings. Here are some pros and cons of buying this type of insulation:
Pros:1. Energy Savings: Second Skin 1Therm thermal blocks can help reduce energy consumption by reflecting or reducing the amount of radiant heat that enters a building, leading to potential energy savings on heating and cooling costs.
2. Easy Installation: These thermal blocks are lightweight and easy to install. They can be attached to the underside of roof decks, walls, or other surfaces using clips, straps, or adhesive.
3. Cost-Effective: Compared to other insulation materials, Second Skin 1Therm thermal blocks are relatively affordable and offer good value for money.
4. Reflects Radiant Heat: The primary function of Second Skin 1Therm thermal blocks is to reflect radiant heat, making them an effective solution for reducing heat gain in buildings.
5. Can Improve R-Value: Although the primary function of Second Skin 1Therm thermal blocks is to reflect radiant heat, they can also improve the overall R-value of a building by providing an additional layer of insulation.
Cons:1. Limited Insulation Value: While Second Skin 1Therm thermal blocks can improve the overall R-value of a building, they offer limited insulation value compared to other insulation materials.
2. May not be Effective in All Climates: Second Skin 1Therm thermal blocks are most effective in climates where there is a significant amount of radiant heat gain. In colder climates, other types of insulation may be more effective.
3. Requires Proper Installation: Proper installation is crucial for ensuring the effectiveness of Second Skin 1Therm thermal blocks. Improper installation can lead to gaps or air pockets, which can reduce their effectiveness.
4. May Not Be Suitable for All Applications: Second Skin 1Therm thermal blocks may not be suitable for all applications. For example, they may not be effective in areas with high moisture levels or in applications where fire resistance is a concern.
Conclusion:Second Skin 1Therm thermal blocks can be an effective and cost-efficient solution for reducing heat gain in buildings, particularly in climates with significant radiant heat gain. However, they offer limited insulation value and may not be suitable for all applications. Proper installation is crucial for ensuring their effectiveness.
Recommendation:If you are looking to reduce heat gain in your building and live in a climate with significant radiant heat gain, Second Skin 1Therm thermal blocks may be a good option for you. However, it is important to ensure proper installation and consider other insulation options for areas with high moisture levels or where fire resistance is a concern. Consult with a qualified insulation professional to determine the best insulation solution for your specific application.
Details:
Flexible peel-and-stick installation: lightweight, self-adhesive heat shield design flexibly bends around curves and tight spaces. Excessive engine and exhaust heat can transfer through firewalls, floor pans, transmission tunnels, causing uncomfortable cabins long-term damage to wiring, paint, surrounding materials. It is ideal for reducing engine and exhaust heat transfer through firewall shield, floor pans, under-hood insulation areas to keep interiors cooler.
Cut the sheet to size, clean surface, peel liner, and apply. Versatile automotive applications: ideal for engine, firewall, transmission tunnels, turbochargers, hood liners, floor pans, mufflers, fuel tanks, brake lines, and under-hood insulation zones. Installation is fast and simple thanks to the peel-and-stick heat shield backing. Designed as a radiant heat barrier, it reflects up to 98% of away from critical surfaces when installed with the reflective foil facing source, helping protect vehicle interiors and sensitive components.
Cut-to-fit insulation sheet installs easily on clean surfaces with no special tools. For best results, always face the foil side toward heat source and maintain a minimum 2-inch air gap. The material resists water, oil, solvents, coolant, and flame, making it suitable for demanding under-hood shielding underbid environments. Thermal block is available in both flat and ridged foil formats to suit different handling installation preferences.
The comfortable design allows installation on firewall heat shields, under hoods, floor pans above exhaust pipes, transmission tunnels, mufflers, catalytic converters, fuel tanks, and brake lines. This heat shield mat is engineered for long-term performance in harsh under-hood and underbid automotive environments. Proudly made in the USA. Available in multiple pack options, each heat shield mat measures 12 x 24 2 sq ft and is 1/8 thick, featuring a reflective aluminum foil surface bonded to durable pet fiber insulation core.
This advanced heat shield material withstands continuous temperatures up to 800 f while remaining flexible and easy handle.
specifications heatnshield:
- brand: Second Skin
- mpn: 1therm
- model: 1-therm
- part type: Heat Block
- color: Silver
- itemlength: 610
- itemwidth: 305
- packageheight: 18
- packageweight: 308
- packagewidth: 233
- size: 2 Sq Ft 1 Sheet Flat Foil
- upc: 731236583240
returns heatnshield:
- paid by: seller
- time: 30 days
- policy: returns accepted
seller heatnshield:
- rating: 99.4%
- # reviews: 1297
- city: chicago, illinois
offer heatnshield:
- sold #: 8
- options: ship-to-home
- availability: in stock
- started: february 10, 2026
- in stock #: 2
- prices: $46.87–$47.88
- item condition: New
shipping heatnshield:
- class: expedited
- service: expedited
- type: fixed
- transit: 3-9 days
payments heatnshield:
- other
- wallet: google-pay
- credit card: mastercard
general heatnshield:
- category: Auto Parts > Car Truck Accessories > Exhaust Emission Systems > Heat Shields, Wraps Sleeves


