---
product_id: 387031038
title: "Butyl Seal Putty Tape Black 1/8 Inch Thick x 3/4 Inch Wide x 33 Feet Extra Thick for Leak Proof RV Repair Window Glass Boat Sealing EPDM Roof Patching (BST343)"
brand: "llpt"
price: "1281049₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Llpt"
url: https://www.desertcart.vn/products/387031038-butyl-seal-putty-tape-black-1-8-inch-thick-x
store_origin: VN
region: Vietnam
---

# Instant watertight & airtight bond -20°C to 98°C wide temp range 0.14 inch extra thick for pro-grade sealing Butyl Seal Putty Tape Black 1/8 Inch Thick x 3/4 Inch Wide x 33 Feet Extra Thick for Leak Proof RV Repair Window Glass Boat Sealing EPDM Roof Patching (BST343)

**Brand:** llpt
**Price:** 1281049₫
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal it like a pro — never let leaks cramp your style!

## Quick Answers

- **What is this?** Butyl Seal Putty Tape Black 1/8 Inch Thick x 3/4 Inch Wide x 33 Feet Extra Thick for Leak Proof RV Repair Window Glass Boat Sealing EPDM Roof Patching (BST343) by llpt
- **How much does it cost?** 1281049₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/387031038-butyl-seal-putty-tape-black-1-8-inch-thick-x)

## Best For

- llpt enthusiasts

## Why This Product

- Trusted llpt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Level Thickness:** Extra thick 3.5mm tape ensures mess-free, easy installation like the pros.
- • **All-Season Resilience:** Operates flawlessly from freezing cold to scorching heat without drying or hardening.
- • **Ultimate Leak Defense:** Blocks wind, water, dust, oil, grease, vapor & corrosive chemicals for long-lasting protection.
- • **Universal Surface Grip:** Adheres instantly to glass, metal, wood, plastic & more—even on jagged or uneven surfaces.
- • **Seamless & Paintable Finish:** Paint over for a clean, professional look that blends perfectly with your project.

## Overview

LLPT Butyl Seal Putty Tape is a premium, extra-thick synthetic rubber tape designed for airtight and watertight sealing across diverse surfaces including glass, metal, wood, and plastic. With a wide operating temperature range (-20°C to 98°C), non-drying, flexible formula, and paintable finish, it delivers professional-grade leak protection for RVs, boats, windows, roofs, and more—ensuring durable, mess-free repairs that stand the test of time.

## Description

FEATURES: : - Ideal tape for glass, boating, RV, EPDM roofing sealing, car & truck headlights and so on. - Extra thick is making the tape easier to install like pros. - Instant watertight bonding and air tight sealing. - Work widely on different surfaces like wood, metal, glass, plastic and etc. - Resists temperature into a gooey slob and resisting stiffness at low temperature which makes the tape hard to use. - Non-drying and non-hardening at full season. - The tape is painting to ensure for neat and seamless after your installation. - Mess free installation, shut off wind, water, dust, oil, grease, vapor, moisture, corrosive chemical and other leakages. - Wide operating temperature range from -20 to 98 Celsius degree. - Package in single box. IMPORTANT NOTES 1. ALWAYS APPLY WIDER TO THE LEAKING SPOTS AND COVER LEAKAGE FROM SOURCE. 2. DUST, SANDS & CRACKS ON SURFACE MUST BE CLEAN / DRY TO CREATE PAMERNANT AND STRONG BONDING. 3. DO NOT TRY TO CHECK TAPE BY PULLING UP OR WETTING WHEN JUST DONE, LEAVE THE TAPE 24 - 48 HOURS CURING TIME.

Review: Habe das Band zum Eindichten einer Dachluke, sowie mehrerer Lüftungsgitter am Wohnwagen benutzt. Lässt sich sehr einfach und gut verarbeiten. Es ist alles dicht. Das Produkt bleibt elastisch und härtet nicht aus! Damit ist es perfekt geeignet um vibrierende Bauteile oder welche mit starker Wärme- Kälte-Ausdehnung abzudichten.
Review: I put this in the fridge overnight before using it, as I've heard that butyl can go gooey in the heat. This is the first time I've used the stuff - similar to double-side tape, it was very easy to apply and gave an instant grab (you only really get one opportunity to stick it, so be ready and be accurate). I used it for sticking the edges of an EPDM rubber roof membrane to OSB board and it worked a treat. I simply unrolled the tape straight from the roll onto the OSB, then tore/snapped it off when I'd applied enough. I then removed the backing tape and pulled the EPDM on to the exposed butyl. Very simple really - not rocket science by any means and anybody with common sense and reasonable coordination should have no problem using it.

## Features

- APPLICATION: Widely used for window & door waterproof reinforcement, airtight sealing, windshield, RV, retrofit, pipe, joint sealing, mobile home, glass, EPDM roof or galvanized metal roofing patching for indoor and outdoor.
- WORKING PATTERNS: Suitable to be use on glass, fiberglass, wood, coated or uncoated metals, plastic, rubber at tight corners, unusual curves, uneven and most jagged surfaces; reliably shut off wind, water, dust, oil, grease, vapor, moisture, corrosive chemical and other leakages; paintable feature is making your installation area a seamless, clean, dry and heavy duty water tight workspace.
- FEATURES: LLPT Butyl Putty Tape (3.5mm/0.14 inch thick) is made of synthetic composited rubber for non-drying, non-hardening and extremely working temperature that provides easy installation, easy forming, quick molding, shock-absorbing, mess free, air tight sealing, waterproof, high viscosity and elasticity. Unlike most butyl seal tape, LLPT Putty Tape is a premium grade with long life support.
- EASY TO USE: : LLPT Sealant Putty Tape delivers easy molding and instant adhesion to the surface of object; simply clean the surface first for better bonding and release the butyl tape to areas you want to seal with proper press all around the tape; the ideal installation temperature is around 10 Celsius degree, to low will make the tape stiffer which might need a little bit longer time for molding.
- LLP-TAPES: LLPT produces various tapes for industrial & commercial use with ideal sizes & thickness based on the desires of users. LLPT is dedicated to provide high utility on the product with competitive price with well protected package. Search on desertcart for other LLPT tapes like PET Repair Tape, Woodworking Tape, Aluminum Foil Tape, Foam Tape, Black/Gray/Clear Acrylic Mounting Tape, Duct Tape, Silicone Tape, Caulking Tape, Gaffer Tape and so on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HSY9N76 |
| ASIN  | B08HSY9N76 |
| Best Sellers Rank | #97,110 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #387 in Masking Tape #937 in Painting Prep Materials |
| Brand Name | LLPT |
| Color | Black |
| Compatible Material | Rubber |
| Country Of Origin | China |
| Country of origin  | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (529) |
| Customer reviews | 4.6 4.6 out of 5 stars (529) |
| Date First Available  | 2 May 2021 |
| Global Trade Identification Number | 07915901300544 |
| Item Dimensions L x W x Thickness | 19W x 3Th millimeters |
| Item Resistance | Chemical Resistant, Cold Resistant, Heat Resistant, Water resistant |
| Item Thickness | 3 Millimeters |
| Item Weight | 0.83 Kilograms |
| Item model number  | BST343 |
| Manufacturer | LLP International Group |
| Manufacturer  | LLP International Group |
| Material Type | ROHS Rubber 0.14" Thickness |
| Model | BST343 |
| Number of Items | 1 |
| Other Special Features of the Product | Strong |
| Package Dimensions  | 21.5 x 21.4 x 4.2 cm; 830 g |
| Part Number | BST343 |
| Recommended Uses For Product | Outdoor |
| Size Name | 3/4 Inch x 33 Feet |
| Surface Recommendation | Glass |
| UPC | 791590130054 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 98 Degrees Celsius |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** LLPT
- **Colour:** Black
- **Material:** ROHS Rubber 0.14" Thickness
- **Number of Items:** 1
- **Recommended uses for product:** Outdoor

## Images

![Butyl Seal Putty Tape Black 1/8 Inch Thick x 3/4 Inch Wide x 33 Feet Extra Thick for Leak Proof RV Repair Window Glass Boat Sealing EPDM Roof Patching (BST343) - Image 1](https://m.media-amazon.com/images/I/61NWVKE74+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***E on 10 November 2025*

Habe das Band zum Eindichten einer Dachluke, sowie mehrerer Lüftungsgitter am Wohnwagen benutzt. Lässt sich sehr einfach und gut verarbeiten. Es ist alles dicht. Das Produkt bleibt elastisch und härtet nicht aus! Damit ist es perfekt geeignet um vibrierende Bauteile oder welche mit starker Wärme- Kälte-Ausdehnung abzudichten.

### ⭐⭐⭐⭐⭐ Review
*by R***D on 3 September 2023*

I put this in the fridge overnight before using it, as I've heard that butyl can go gooey in the heat. This is the first time I've used the stuff - similar to double-side tape, it was very easy to apply and gave an instant grab (you only really get one opportunity to stick it, so be ready and be accurate). I used it for sticking the edges of an EPDM rubber roof membrane to OSB board and it worked a treat. I simply unrolled the tape straight from the roll onto the OSB, then tore/snapped it off when I'd applied enough. I then removed the backing tape and pulled the EPDM on to the exposed butyl. Very simple really - not rocket science by any means and anybody with common sense and reasonable coordination should have no problem using it.

### ⭐⭐⭐⭐⭐ Review
*by E***. on 11 April 2026*

Alles gutttt.

## Frequently Bought Together

- LLPT Butyl Tape Black 3/4 Inch x 33Ft Tight Seal for Leak Proof EPDM RV Repair Window Glass Boat Sealing Roof Pipe Patching(BST343)
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- Sika Sikaflex-221 - Black - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz

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**Shop now:** [https://www.desertcart.vn/products/387031038-butyl-seal-putty-tape-black-1-8-inch-thick-x](https://www.desertcart.vn/products/387031038-butyl-seal-putty-tape-black-1-8-inch-thick-x)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-17*