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XFasten Butyl Sealing Tape is a high-performance, black synthetic EDPM rubber tape designed for waterproof, chemical-resistant sealing across multiple surfaces. With 350 PSI tensile strength and heat resistance up to 290°F, it delivers durable, no-residue seals ideal for RVs, boats, plumbing, and construction projects. Trusted by thousands with a 4.7-star rating, this 30-foot tape offers professional-grade results for DIY enthusiasts and pros alike.
| Adhesive Format | Tape |
| Adhesive Location | One side |
| Adhesive Side Count | 2 |
| Asin | B06WLQ3WLS |
| Best Sellers Rank | #1,428 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3 in Butyl Tape |
| Brand Name | XFasten |
| Color | Black |
| Compatible Material | Metal, Rubber, Plastic, Pvc, Glass, Wood, Polycarbonate |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,810) 4.7 out of 5 stars |
| Foil Thickness | 0.13 Inches |
| Included Components | 1/8 Inch Thick Butyl Tape, Adhesive Backing |
| Item Dimensions L X W X Thickness | 0.75"L x 0.75"W x 0.13"Th |
| Item Resistance | waterproof, chemical resistant, leak resistant |
| Item Thickness | 0.13 Inches |
| Item Weight | 2.4 Ounces |
| Manufacturer | XFasten |
| Material Type | Butyl Rubber |
| Model | BST3430 |
| Number Of Items | 1 |
| Other Special Features Of The Product | No Residue |
| Part Number | BST3430 |
| Recommended Uses For Product | Electrical, Indoor, Outdoor, Plumbing |
| Size Name | 1/8" x 3/4" x 30', Single Pack |
| Surface Recommendation | Concrete, Metal, Plastic, Wood |
| Tensile Strength | 350 Pounds Per Square Inch |
| Unit Count | 30.0 Feet |
| Upc | 602401715660 |
| Upper Temperature Rating | 290 Degrees Fahrenheit |
| Warranty Description | Manufacturer warranty for 90 days from date of purchase |
| Water Resistance Level | Waterproof |
User
Great for sealing and adhesion
Purchased to put between fenders and body of an old truck I am rebuilding. I have also used the sealing tape to put between sheet metal components that get screwed together to seal and eliminate potential squeaks.The tape works great, seals very well, hope I don't have to take anything apart.Per the instructions, it's easiest to work with the tape when the tape is cool, otherwise it gets really sticky.Great product for its intended use.
User
Nice and easy to use. Works well
It’s as described. Pretty pliable and soft but not like putty. Stretches easily it should work for your needs were it is required for this product. Metal to metal on my old car works fine. Weather strip Chanel tracks ect. Came in a nice roll. Packing was very nice. Easy to use product. Cool area I used it in around 60 degrees. No mess.
User
If your unsure. It's definitely worth it
About this to install a fan in the bathroom of my camper. I instantly tested to see if it was waterproof before I added my Henry's tropicool sealant on top. It worked perfect I left the water hose on the roof with water hitting Butly tape directly no water penetration whatsoever before I even put the screws to tighten it down this stuff is amazing. It's incredibly sticky and the thickness was exactly as described
User
sticky leak proof stuff
very good and strong sealant tape for vents and anything you want to keep water out very sticky i have used butyl tape on many things and none leaked.highly recommended.
User
Worked OK underneath RV roof parts
I use this up underneath some RV parts that I installed along with the screws. It seemed to do OK.
User
Worked great for discontinued gaskets
Used this to make gaskets inside evaporator core housing as original gaskets are discontinued. Worked great, and easy to work with
User
sticky tape
Great sealing tape, very sticky.
User
Easy to use and seals well, great product!
Great product and flexible enough to do the sealant jobs I needed. I ought for my RV to install some additional solar panels and place under my slam lock catch that had a leak. I can already see a few other places I can use it so imagine it will just stay in my camper for some emergency situations.
User
Best Ever
Bought this butyl tape to reinstall factory glass in my van doors and a new roof vent. Stop using silicone, this is the right product to use. Easy and water tight. As long as you know what you are doing.
User
Good Product
Quick delivery, item as described, happy
User
Easy to manipulate
Works well, I used to seal the weather guards back up in my car.
User
Très utile pour l’étanchéite
Très utile pour l’installation de fenêtres et portes de VR ou remorques fermées
User
Handy to have
awesome product
Trustpilot
3 weeks ago
2 months ago