--- product_id: 31842635 title: "Poly Welder Pro Polyethylene Welding Strips (5), Red Color, 12\" x 1/16\" x 3/8\"" brand: "rainflo" price: "153 Lei" currency: RON in_stock: true reviews_count: 8 category: "Rain Flo" url: https://www.desertcart.ro/products/31842635-poly-welder-pro-polyethylene-welding-strips-5-red-color-12 store_origin: RO region: Romania --- # LDPE material 12" length 0.32 oz weight Poly Welder Pro Polyethylene Welding Strips (5), Red Color, 12" x 1/16" x 3/8" **Brand:** rainflo **Price:** 153 Lei **Availability:** ✅ In Stock ## Summary > 🔧 Weld Your Worries Away! ## Quick Answers - **What is this?** Poly Welder Pro Polyethylene Welding Strips (5), Red Color, 12" x 1/16" x 3/8" by rainflo - **How much does it cost?** 153 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/31842635-poly-welder-pro-polyethylene-welding-strips-5-red-color-12) ## Best For - rainflo enthusiasts ## Why This Product - Trusted rainflo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Friendly Choice:** Made from recyclable LDPE polyethylene. - • **Lightweight & Durable:** Weighs only 0.32 oz for easy handling. - • **Universal Compatibility:** Works with brands like Norwesco and Poly-Mart. - • **Color-Matched Convenience:** Green strips blend seamlessly with your gear. - • **Versatile Repair Solution:** Perfect for fixing water tanks, ATVs, and more! ## Overview The Poly Welder Pro Polyethylene Welding Strips are 12" long, 1/16" thick, and 3/8" wide, designed for versatile repairs on various plastic applications, including water tanks and fenders. Made from durable LDPE material, these lightweight strips are perfect for DIY enthusiasts and professionals alike. ## Description The color of these strips will match many polyethylene applications like plastic water tanks, canoes and kayaks where you need a more invisible repair. These strips can be used to repair most water tanks manufactured by Norwesco, Poly-Mart, Ace Rotomold, Snyder, Den Hartog, Dura-Cast, Custom Roto Mold, Waterwall and almost all other polyethylene water tank manufacturers. Polyethylene is also used in automotive applications like windshield washer bottles and radiator overflow tanks. It is also used on ATV fenders, small watercraft, motor home water tanks, dirt bike fenders, gas tanks and agricultural water/fertilizer tanks. Polyethylene is very stable (meaning few things will react with it), which is why it is almost impossible to get quality repairs using adhesives, and also why it is used to contain chemicals (gasoline, pesticides, etc.) that would react with other plastics. Welding is the best repair method for polyethylene. A high degree of molecular branching with long chains gives molten LDPE unique and desirable flow properties, making it easier to work with while producing a high-strength and durable bond for both LDPE and HDPE welds. The RED color of this rod will match many RED polyethylene applications where you need a more invisible repair. This package contains 5 ft. of RED polyethylene strips. These polyethylene strips are 12" long and approximately 1/16' thick and 3/8' wide. Review: Amazing if used properly - I use these polyethylene welding strips for kayak repair work, mainly for patching and reinforcing small cracks and wear areas on HDPE plastic. They melt and bond as expected when used with proper plastic welding heat, and they integrate well into the base material once you get the temperature right. The key thing that actually made this work for me was keeping the heat consistent—too hot and you’ll burn or deform the plastic, too cold and it won’t properly fuse. Once you dial that in, the strips flow into the existing material and form a solid bond. It also helps to clean and lightly rough up the repair area first so the weld has something to grip onto. I’ve had the best results applying pressure as the plastic cools to ensure a tight, uniform seal. The strips themselves feed smoothly and are easy to work with during the weld process. They’re flexible enough when heated to shape into cracks and seams without breaking or clumping. Overall, they do exactly what they’re supposed to do for polyethylene repair. If you take your time and use the right heat control, you can get strong, clean repairs that hold up well in real use. Review: How to successfully weld plastic.... - Poly Welder Pro Polyethylene Welding Strips - 5-feet (Black) The product I purchased was the black LDPE strips not the green or white. I have an older motorhome with black low density polyethylene holding tanks for both the black and grey water. The whole key to successfully plastic welding any of these tanks is finding out what the tanks are made of. In most cases the recycling symbol on the tank, usually a triangle with a number, will indicate what it is made of. In order to successfully weld plastic you must use a welding rod of either the same density as the tank, or welding rod of a lower density than the tank. In my case LDPE worked perfectly. Both tanks had stress cracks in multiple places from the metal bars and bolts that were used to bolt the tanks up to the floor of the motorhome. I did not remove the tanks when doing this. Both of these tanks were bone dry when I did the welding. First I tried using a very small triangular shaped iron to do it but it did not get hot enough to melt the plastic to a state of flow. At that point I just grabbed my propane torch, set it to approximately a 0.5 inch or shorter flame and applied it to both the tank and the rod at the same time. You can see the plastic melt both surfaces and they effectively became one solid piece of plastic. Grab the flat welding rod several inches above the end of it and apply a bend to it trying to flatten it out to the surface of the tank. Put the flame right where the 2 surfaces meet and it will become evident that they are melting together. Be light with the flame. If you hold it too long to that area you could melt it more than you need to. This also will become self-evident. You will become better at this type of welding quickly as you do it. The results were phenomenal. No leaks at all. Tested by filling both tanks up with water as the motorhome sat on our concrete driveway. The additional material that I added to the tanks seemed to increase the strength of the tank by making the tank thicker in that area. I don't anticipate ever having to do this again. It sure worked like a charm. ## Features - These LDPE polyethylene strips are 12" long and approximately 1/16" thick and 3/8" wide - The colors of these strips will match many applications like plastic water tanks, canoes and kayaks - Can be used to repair most water tanks like Norwesco, Poly-Mart, Ace, Snyder, Dura-cast, etc. - Also used to repair windshield washer bottles, radiator overflow tanks, ATV fenders, watercraft - Use to repair motor home water tanks, dirt bike fenders, gas tanks and agricultural water tanks ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00VMGO1U6 | | Best Sellers Rank | #114,823 in Automotive ( See Top 100 in Automotive ) #172 in Arc Welding Rods | | Brand | RainFlo | | Brand Name | RainFlo | | Color | Red | | Customer Reviews | 4.5 out of 5 stars 731 Reviews | | Grade Rating | Commercial | | Item Diameter | 0.38 Inches | | Item Dimensions | 12 x 1 x 1 inches | | Item Form | Strip | | Item Shape | Strip | | Item Thickness | 0.06 Inches | | Item dimensions L x W x H | 12 x 1 x 1 inches | | Manufacturer | RainFlo | | Material | LDPE polyethylene | | Model Number | 36223 | | Number of Items | 1 | | Part Number | 36223 | | Shape | Strip | | UPC | 656727936179 | | Unit Count | 1.0 Count | ## Images ![Poly Welder Pro Polyethylene Welding Strips (5), Red Color, 12" x 1/16" x 3/8" - Image 1](https://m.media-amazon.com/images/I/610yW-JUPTL.jpg) ![Poly Welder Pro Polyethylene Welding Strips (5), Red Color, 12" x 1/16" x 3/8" - Image 2](https://m.media-amazon.com/images/I/41Irkn+PORL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can I get this in Tan?** A: Yes, it is available to purchase in Sand/Tan color, it is available on Amazon in the link below: https://www.amazon.com/dp/B07NPX27H9?ref=myi_title_dp We also sell this color in the Poly Welder Pro kit: https://www.amazon.com/dp/B07N1YHQTH?ref=myi_title_dp **Q: Is "natural" white or clear?** A: It is closer to white in color. **Q: Can I screw a screw in it after filling screw stripped hole?** A: It may or may not work, this item is not intended to be used in this manner, it is intended for repairing small holes or tears in plastic, like water tanks as an example. **Q: Can these green plastic rods be used to repair cracks in John Deere lawn tractor hood?** A: you would need to know the material used to make the hood. The rods are polyethylene, so the hood would need to be the same, polyethylene. they may cover a crack but no bonding. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Amazing if used properly *by G***A on April 30, 2026* I use these polyethylene welding strips for kayak repair work, mainly for patching and reinforcing small cracks and wear areas on HDPE plastic. They melt and bond as expected when used with proper plastic welding heat, and they integrate well into the base material once you get the temperature right. The key thing that actually made this work for me was keeping the heat consistent—too hot and you’ll burn or deform the plastic, too cold and it won’t properly fuse. Once you dial that in, the strips flow into the existing material and form a solid bond. It also helps to clean and lightly rough up the repair area first so the weld has something to grip onto. I’ve had the best results applying pressure as the plastic cools to ensure a tight, uniform seal. The strips themselves feed smoothly and are easy to work with during the weld process. They’re flexible enough when heated to shape into cracks and seams without breaking or clumping. Overall, they do exactly what they’re supposed to do for polyethylene repair. If you take your time and use the right heat control, you can get strong, clean repairs that hold up well in real use. ### ⭐⭐⭐⭐⭐ How to successfully weld plastic.... *by T***N on August 16, 2016* Poly Welder Pro Polyethylene Welding Strips - 5-feet (Black) The product I purchased was the black LDPE strips not the green or white. I have an older motorhome with black low density polyethylene holding tanks for both the black and grey water. The whole key to successfully plastic welding any of these tanks is finding out what the tanks are made of. In most cases the recycling symbol on the tank, usually a triangle with a number, will indicate what it is made of. In order to successfully weld plastic you must use a welding rod of either the same density as the tank, or welding rod of a lower density than the tank. In my case LDPE worked perfectly. Both tanks had stress cracks in multiple places from the metal bars and bolts that were used to bolt the tanks up to the floor of the motorhome. I did not remove the tanks when doing this. Both of these tanks were bone dry when I did the welding. First I tried using a very small triangular shaped iron to do it but it did not get hot enough to melt the plastic to a state of flow. At that point I just grabbed my propane torch, set it to approximately a 0.5 inch or shorter flame and applied it to both the tank and the rod at the same time. You can see the plastic melt both surfaces and they effectively became one solid piece of plastic. Grab the flat welding rod several inches above the end of it and apply a bend to it trying to flatten it out to the surface of the tank. Put the flame right where the 2 surfaces meet and it will become evident that they are melting together. Be light with the flame. If you hold it too long to that area you could melt it more than you need to. This also will become self-evident. You will become better at this type of welding quickly as you do it. The results were phenomenal. No leaks at all. Tested by filling both tanks up with water as the motorhome sat on our concrete driveway. The additional material that I added to the tanks seemed to increase the strength of the tank by making the tank thicker in that area. I don't anticipate ever having to do this again. It sure worked like a charm. ### ⭐⭐⭐⭐⭐ Great for Repairing Old ATV Body Work *by A***R on October 18, 2023* I've used these a lot for repairing cracks and reinforcing the fenders and other body panels on my 1985 Honda Big Red three-wheeler. They work great with standard plastic welders, hot staplers, and even soldering irons if you know how to do it properly. If done correctly you can make a 30 or 40 year old piece look great again. When the time comes I'll definitely get more of these. I highly recommend grabbing some of these and learning the art of plastic welding. It's rewarding and saves a lot of expense. ## Frequently Bought Together - Poly Welder Pro Polyethylene Welding Strips - 5-feet (Green) - JOUNJIP Reinforcing Stainless Steel Mesh for Bumper Kayak Thermoplastic Repairs - Use with Plastic Welding Kit - Poly Welder Pro 200 Watt Plastic Repair Kit (Green) --- ## 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.ro/products/31842635-poly-welder-pro-polyethylene-welding-strips-5-red-color-12](https://www.desertcart.ro/products/31842635-poly-welder-pro-polyethylene-welding-strips-5-red-color-12) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-06-11*