--- product_id: 13766141 title: "R338H Self-Stick Rubber Foam Weatherseal, 3/8\"W, 3/16\"T, Black|Blacks" brand: "frost king" price: "$6.64" currency: USD in_stock: true reviews_count: 13 category: "Frost King" url: https://www.desertcart.us/products/13766141-r338h-self-stick-rubber-foam-weatherseal-3-8w-3-16t store_origin: US region: United States of America --- # 3/8"W x 3/16"T precision fit Self-stick for effortless DIY Durable rubber foam with shock absorption R338H Self-Stick Rubber Foam Weatherseal, 3/8"W, 3/16"T, Black|Blacks **Brand:** frost king **Price:** $6.64 **Availability:** βœ… In Stock ## Summary > πŸ–€ Seal the deal with Frost King – where durability meets sleek design! ## Quick Answers - **What is this?** R338H Self-Stick Rubber Foam Weatherseal, 3/8"W, 3/16"T, Black|Blacks by frost king - **How much does it cost?** $6.64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/13766141-r338h-self-stick-rubber-foam-weatherseal-3-8w-3-16t) ## Best For - frost king enthusiasts ## Why This Product - Trusted frost king brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Extra tough rubber foam resists wear, compression, and harsh weather for long-term reliability. - β€’ **Perfectly Sized Seal:** Precisely 3/8" wide and 3/16" thick for a sleek, professional finish on doors and windows. - β€’ **Versatile Applications:** Ideal for home, automotive, and marine useβ€”seal gaps, reduce noise, and prevent drafts effortlessly. - β€’ **Peel & Stick Simplicity:** No tools, no hassleβ€”just peel off the backing and apply for instant weatherproofing. - β€’ **Trusted American Quality:** Proudly made in the USA with a limited lifetime warranty to back your investment. ## Overview Frost King R338H is a 10-foot long, 3/8" wide by 3/16" thick self-stick rubber foam weatherseal designed for superior sealing around doors, windows, vehicles, and appliances. Manufactured in the USA, it offers minimum compression, excellent shock absorption, and durable protection against drafts, noise, and vibration, backed by a limited lifetime warranty. ## Description Product Description Frost King R338H Sponge Rubber Foam Tape 3/8-Inch wide by 3/16-inch tall by 10-feet long, Black From the Manufacturer Frost King Sponge Rubber Foam Tape with minimum compression is a tough reliable self-stick tape with dozens of uses. It can be used as a weather-strip, as a seal around air conditioners, as a gasket and to cushion and stabilize major appliances. On cars, trucks and boats, it can prevent rattles, vibrations and squeaks. Manufacturer Contact Information 1-800-526-5265 Review: Works as intended & very nicely. - Well, I wasted my money! Do not misunderstand so soon though; the seal works great for the first half of the door, for the second half it showed me the door is crooked! The adhesive sticks nicely, if you make a mistake, it allows you to go back & fix it as long as the paper is still attached to prevent the material from stretching or tearing. Once applied, you peel the tape off very easily. Looks good, if only I bought a thicker version of the same product, it would have been perfect for my use-case scenario. At-least now I know the door I used this with is not flush with the frame. So how do I fix this problem? Well, I am not going to be taking the frame off, possibly damage it, put it back on, and repaint it; so time to buy more Frost King Self-Stick Rubber Foam Weatherseal adhesive strips! Particularly the variety that stands out further so that it could make contact with the door! Review: Used these to seal the gap around the plastic scoops to redirect the TV speaker to the front. - So I used this in an unconventional manner to seal the area around my speaker "scoops" which prevents the TV noise to project behind the TV. The scoopers are great in directing the TV volume to the front, eliminating the sound from projecting to the next room. However, even after attaching the scoops underneath the speakers of the TV, there are still some gaps. I sealed those gaps easily with this weather stripping. It's the perfect, color, length, width, and thickness for that task! It is sticky on one side and attached beautifully to the TV. I'm sure I could use this to line the gap around my doors for a tighter seal to prevent creaking and draft from moving the doors and window but for this task, it was the only one that met my description in terms of cost and length. All in all, I probably only used about 20 cm (7.84 inches) [0.653 feet] of length in total. I didn't need 10 feet. ## Features - The product is 3/8x3/16 BLK Foam Tape - Easy and simple use kit - The product is manufactured in United States - Minimum Compression - Superior Shock Absorbing - Extra tough and durable - Seals around windows and doors - Many automotive and marine uses ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BQWWF4 | | Best Sellers Rank | #1,637 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Weather Stripping | | Brand | Frost King | | Brand Name | Frost King | | Color | black|Blacks | | Customer Reviews | 4.2 out of 5 stars 2,497 Reviews | | Included Components | No | | Item Dimensions L x W | 120"L x 0.38"W | | Item Thickness | 0.25 inches | | Item Type Name | Rubber Foam Weatherseal | | Item Weight | 17.01 g | | Manufacturer | Frost King | | Manufacturer Contact Information | 1-800-526-5265 | | Manufacturer Part Number | R338H | | Manufacturer Warranty Description | Limited Lifetime Warranty | | Material | Rubber | | Material Type | Rubber | | Model Number | R338H | | Number of Items | 1 | | Number of Packs | 1 | | Product Dimensions | 120"L x 0.38"W | | Recommended Uses For Product | weatherstripping, sealing gaps in vehicles, cushioning and stabilizing appliances | | UPC | 077578012209 | | Unit Count | 10 Feet | ## Product Details - **Brand:** Frost King - **Color:** black|Blacks - **Item Thickness:** 0.25 inches - **Material:** Rubber - **Product Dimensions:** 120"L x 0.38"W ## Images ![R338H Self-Stick Rubber Foam Weatherseal, 3/8"W, 3/16"T, Black|Blacks - Image 1](https://m.media-amazon.com/images/I/91yYxLoL8KL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Can you double up on it if it's not thick enough?** A: Yes you should be able to with it being sticky it will stick to itself and double the thickness **Q: Does it keep dust out?** A: i used it on my comp , & i haven't had any problems with dust. just be sure to seal it tight when using it. Darlene. **Q: Could this be used to fill gaps between door sides and frame where bugs are coming in?** A: I believe so; we used this to fill a gap around our door. The intent was to keep the cold air from coming in during the winter months, but it works to seal the gap, preventing anything from coming in/out (air, bugs, etc.). **Q: is this double stick?** A: if you mean double sided adhesive, the answer is no ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as intended & very nicely. *by E***M on January 14, 2026* Well, I wasted my money! Do not misunderstand so soon though; the seal works great for the first half of the door, for the second half it showed me the door is crooked! The adhesive sticks nicely, if you make a mistake, it allows you to go back & fix it as long as the paper is still attached to prevent the material from stretching or tearing. Once applied, you peel the tape off very easily. Looks good, if only I bought a thicker version of the same product, it would have been perfect for my use-case scenario. At-least now I know the door I used this with is not flush with the frame. So how do I fix this problem? Well, I am not going to be taking the frame off, possibly damage it, put it back on, and repaint it; so time to buy more Frost King Self-Stick Rubber Foam Weatherseal adhesive strips! Particularly the variety that stands out further so that it could make contact with the door! ### ⭐⭐⭐⭐⭐ Used these to seal the gap around the plastic scoops to redirect the TV speaker to the front. *by A***N on May 19, 2026* So I used this in an unconventional manner to seal the area around my speaker "scoops" which prevents the TV noise to project behind the TV. The scoopers are great in directing the TV volume to the front, eliminating the sound from projecting to the next room. However, even after attaching the scoops underneath the speakers of the TV, there are still some gaps. I sealed those gaps easily with this weather stripping. It's the perfect, color, length, width, and thickness for that task! It is sticky on one side and attached beautifully to the TV. I'm sure I could use this to line the gap around my doors for a tighter seal to prevent creaking and draft from moving the doors and window but for this task, it was the only one that met my description in terms of cost and length. All in all, I probably only used about 20 cm (7.84 inches) [0.653 feet] of length in total. I didn't need 10 feet. ### ⭐⭐⭐⭐ Works, but it doesn't last. *by R***H on January 23, 2026* Works but the stick doesn't last. I liked it until it began coming off. ## Frequently Bought Together - Frost King R338H Self-Stick Rubber Foam Weatherseal, 3/8"W, 3/16"T, Black|Blacks - THERMWELL Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 by 2-1/4 by 42-Inch - XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/13766141-r338h-self-stick-rubber-foam-weatherseal-3-8w-3-16t](https://www.desertcart.us/products/13766141-r338h-self-stick-rubber-foam-weatherseal-3-8w-3-16t) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-02*