--- product_id: 769812145 title: "Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²)" brand: "aggsound" price: "₩364664" currency: KRW in_stock: true reviews_count: 5 category: "Agg Sound" url: https://www.desertcart.kr/products/769812145-plastic-car-insulation-4-mm-36-sqft-3-34-m² store_origin: KR region: South Korea --- # 98% heat transfer reduction 4 mm dense closed-cell foam Easy 5-step installation Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) **Brand:** aggsound **Price:** ₩364664 **Availability:** ✅ In Stock ## Summary > 🚗 Silence & Coolness, Engineered for the Modern Driver ## Quick Answers - **What is this?** Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) by aggsound - **How much does it cost?** ₩364664 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/769812145-plastic-car-insulation-4-mm-36-sqft-3-34-m²) ## Best For - aggsound enthusiasts ## Why This Product - Trusted aggsound brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cut Heat, Not Comfort:** Reduce heat transfer by an impressive 98%, keeping your car cooler and more comfortable all year round. - • **Effortless DIY Upgrade:** Install in just five simple steps—disassemble, clean, cut, insert, and install—perfectly fitting doors, bonnets, boots, floors, and firewalls. - • **Trusted Support & Quality:** Backed by AggSound’s commitment to quality and responsive 24-hour customer service, ensuring your upgrade is hassle-free. - • **Built to Last Under Pressure:** High anti-extrusion foam ensures long-lasting shape retention without collapse, even in tight vehicle spaces. - • **Premium 3-Layer Sound Barrier:** Experience superior noise reduction with high-density closed-cell foam combined with strong adhesive and durable backing paper. ## Overview AggSound’s Plastic Car Insulation features a 4 mm high-density closed-cell foam layered with premium adhesive and backing paper, delivering 98% heat transfer reduction and superior soundproofing across 36 sqft. Designed for easy installation in multiple vehicle areas, it offers durable, anti-extrusion performance that transforms your driving environment into a quieter, cooler sanctuary. ## Description 4 mm high-quality closed cell foam: Our automotive silencer is made of 3 layers of high-quality material, including 4 mm high density closed cell foam, high quality back adhesive and paper back. It provides better sound insulation for your car, so you can enjoy a quiet and comfortable environment. At the same time, heat transfer is reduced by 98%. Products include: 420 x 40 cm mat x 2 rolls. High-quality material for longer and better use: 4 mm high-quality closed-cell foam has a higher anti-extrusion function compared to inferior foam products, so you don't have to worry about the collapse of the use process. Excellent adhesive has a strong viscosity that can stick and secure. High-quality backing paper is easy to peel and stick and is not easy to tear. [Easy to install & wide application] AggSound heat shield pad is convenient in installation and operation. Only five steps can be completed: disassemble, clean, cut, insert, install. 4 mm thickness is more suitable for the car door, bonnet, boot, floor, firewall and other parts of the vehicle. You do not have to worry about the phenomenon of not being able to install because the thickness is too large, but the vehicle gap is not enough. [Our goal at AggSound is to meet the needs of our customers in every way. We are determined to provide high-quality sound and thermal insulation products at affordable prices. If you have any questions about product quality or installation, you can contact us at any time, and we will reply within 24 hours. Review: Soundproof problem solved - Just a little messy, but, very much worth it. Soundproofing my jeep floors, up to the firewall, underneath the seats, wheel Wells, this works just fine and definitely makes enough of a difference Review: Gute Dämmung für Autotüren - Leicht zu verarbeiten, wie beschrieben ## Features - 4 mm high-quality closed cell foam: Our automotive silencer is made of 3 layers of high-quality material, including 4 mm high density closed cell foam, high quality back adhesive and paper back. It provides better sound insulation for your car, so you can enjoy a quiet and comfortable environment. At the same time, heat transfer is reduced by 98%. Products include: 420 x 40 cm mat x 2 rolls. - High-quality material for longer and better use: 4 mm high-quality closed-cell foam has a higher anti-extrusion function compared to inferior foam products, so you don't have to worry about the collapse of the use process. Excellent adhesive has a strong viscosity that can stick and secure. High-quality backing paper is easy to peel and stick and is not easy to tear. - [Easy to install & wide application] AggSound heat shield pad is convenient in installation and operation. Only five steps can be completed: disassemble, clean, cut, insert, install. 4 mm thickness is more suitable for the car door, bonnet, boot, floor, firewall and other parts of the vehicle. You do not have to worry about the phenomenon of not being able to install because the thickness is too large, but the vehicle gap is not enough. - [Our goal at AggSound is to meet the needs of our customers in every way. We are determined to provide high-quality sound and thermal insulation products at affordable prices. If you have any questions about product quality or installation, you can contact us at any time, and we will reply within 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BWCZMJ91 | | Brand | AggSound | | Country of Origin | China | | Coverage | 36 square feet | | Customer Reviews | 4.3 out of 5 stars 135 Reviews | | Item Dimensions L x W | 4.2L x 0.4W metres | | Item Thickness | 4 Millimetres | | Item thickness | 4 Millimetres | | Manufacturer | AggSound | | Material | Kraft paper plastic | | Model Number | 01 | | Part Number | YY04PM36-1 | | Product dimensions | 4.2L x 0.4W metres | | Recommended Uses For Product | Sound insulation, heat insulation, cars | | Recommended uses for product | Sound insulation, heat insulation, cars | ## Product Details - **Brand:** AggSound - **Item thickness:** 4 Millimetres - **Material:** Kraft paper plastic - **Product dimensions:** 4.2L x 0.4W metres - **Recommended uses for product:** Sound insulation, heat insulation, cars ## Images ![Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) - Image 1](https://m.media-amazon.com/images/I/81I7WRI0iSL.jpg) ![Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) - Image 2](https://m.media-amazon.com/images/I/81Ea1LrH7bL.jpg) ![Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) - Image 3](https://m.media-amazon.com/images/I/81tg6QZoW9L.jpg) ![Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) - Image 4](https://m.media-amazon.com/images/I/81r30rBsrkL.jpg) ![Plastic Car Insulation, 4 mm, 36 sqft (3.34 m²) - Image 5](https://m.media-amazon.com/images/I/71fifBIVyJL.jpg) ## Questions & Answers **Q: Does it come with installation instructions? What's the best way to install it for maximum results?** A: 1.Remove & Clean: Take off interior panels; clean and dry surfaces 2.Cut to Fit: Pre-cut insulation for doors, floor, and roof 3.Apply & Seal: Peel, stick, then seal seams with foil tape (sold separately) 4.Reinstall: Replace all interior components **Q: What's the difference between Aluminum Foil and Closed-cell Foam?What are the best sound deadening solutions for sound?** A: 394mil Aluminum Foil excels in heat blocking. 157mil Closed-cell Foam (higher density) is better for soundproofing. For best results: combine 157mil foam with Butyl Sound Deadener (sold separately) to kill vibration and block noise effectively. **Q: How do I properly install the Butyl + 157mil High-Density Closed-cell Foam combination?** A: 1. Remove, Clean & Cut. 2. Apply butyl sheets(50–60% coverage is optimal), damping vibration, reducing low-frequency noise. 3. Install foam over butyl. Effectively blocks mid-high frequency noise. 4. Check. This combo ensures optimal noise reduction. **Q: How do sound deadening materials work to reduce noise? Can it reduce road noise? Can it be used on car doors?** A: Yes, Closed-cell Foam reduces road noise through:1.Sound absorption (energy to heat conversion) 2.Acoustic impedance reflection 3.Mass law blocking of mid-high frequencies. Its structure effectively reduces road/wind noise transmission into cabin. **Q: Does it require any special tools for the installation? Is a roller necessary?** A: Basic tools: gloves, utility knife, measuring tape. A roller (sold separately) is highly recommended to ensure proper adhesion of butyl/foam. Aluminum foil tape is essential for sealing seams. Keeping surfaces clean is crucial for optimal results. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Soundproof problem solved *by P***C on 17 June 2025* Just a little messy, but, very much worth it. Soundproofing my jeep floors, up to the firewall, underneath the seats, wheel Wells, this works just fine and definitely makes enough of a difference ### ⭐⭐⭐⭐⭐ Gute Dämmung für Autotüren *by F***. on 12 July 2025* Leicht zu verarbeiten, wie beschrieben ### ⭐⭐⭐⭐⭐ 👍 *by C***N on 23 October 2025* 👍 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/769812145-plastic-car-insulation-4-mm-36-sqft-3-34-m²](https://www.desertcart.kr/products/769812145-plastic-car-insulation-4-mm-36-sqft-3-34-m²) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-07-06*