---
product_id: 34430165
title: "Rubber Sealant Coating, Waterproof, Gray, 16 oz | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry"
brand: "flex seal liquid"
price: "S$52"
currency: SGD
in_stock: true
category: "Flex Seal Liquid"
url: https://www.desertcart.sg/products/34430165-rubber-sealant-coating-waterproof-gray-16-oz-stops-leaks-fast
store_origin: SG
region: Singapore
---

# UV Resistant for Longevity 100% Waterproof Seal Multi-Surface Compatibility Rubber Sealant Coating, Waterproof, Gray, 16 oz | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry

**Brand:** flex seal liquid
**Price:** S$52
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it, protect it, forget it — Flex Seal Liquid has you covered!

## Quick Answers

- **What is this?** Rubber Sealant Coating, Waterproof, Gray, 16 oz | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry by flex seal liquid
- **How much does it cost?** S$52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/34430165-rubber-sealant-coating-waterproof-gray-16-oz-stops-leaks-fast)

## Best For

- flex seal liquid enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Surface Master:** Adheres flawlessly to rubber, wood, metal, concrete, fabric, and more—one can, endless fixes.
- • **Rust & Corrosion Defender:** Chemical resistant barrier prevents rust and corrosion, extending the life of your gear and structures.
- • **Seamless Waterproof Shield:** Brush, roll, dip, or pour on a watertight, flexible rubber coating that stops leaks fast.
- • **Built to Last Under the Sun:** UV resistant formula protects surfaces from sun damage and fading, keeping repairs fresh.
- • **Flexible & Breathable Armor:** Maintains elasticity to handle expansion and contraction without cracking or peeling.

## Overview

Flex Seal Liquid is a 16 oz gray rubberized coating that provides a waterproof, flexible, and UV resistant seal on a wide range of surfaces including roofs, basements, RVs, and marine equipment. Its fast-drying, chemical-resistant formula prevents rust and corrosion while maintaining breathability and elasticity, making it a trusted solution for durable, long-lasting repairs.

## Description

Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Gray, 16 oz: desertcart.com: Tools & Home Improvement

## Features

- Flex Seal Liquid is liquid rubber in a can! Now you can brush, roll, dip or pour it on!
- Use anywhere you need a watertight, flexible rubberized coating
- Goes on smooth and covers fast, sealing out water, air and moisture
- UV Resistant
- Prevents rust and corrosion. Chemical resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GFY9X3E |
| Best Sellers Rank | #31,508 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #124 in Hardware Sealers |
| Brand Name | Flex Seal Liquid |
| Color | Gray |
| Compatible Material | Rubber, Wood, Metal, Tile, Concrete, Masonry, Fabric, Glass, Plastic, Aluminum, Porcelain, Dry Wall, Cement, Some Vinyls |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,721) |
| Global Trade Identification Number | 00853517006375 |
| Included Components | Flex Seal Liquid Rubber in a Can, 16-oz, Gray |
| Item Dimensions | 4 x 3.4 x 3.4 inches |
| Item Form | Liquid |
| Item Type Name | Flex Seal Liquid Swift Response LFSGRYR16, Gray As Seen On TV, 16 OZ |
| Item Weight | 16 ounces |
| Manufacturer | Flex Seal Liquid |
| Material Type | Rubber |
| Model | FLEX SEAL - LFSGRYR16 - GRAY |
| Number of Items | 1 |
| Part Number | LFSGRYR16 |
| Style Name | Custom |
| Surface Recommendation | Roof |
| UPC | 853517006375 |
| Unit Count | 16 Fluid Ounces |
| Warranty Description | 1 Year Limited |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Seal Liquid
- **Item Weight:** 16 ounces
- **Item dimensions L x W x H:** 4 x 3.4 x 3.4 inches
- **Material:** Rubber
- **Style:** Custom

## Images

![Rubber Sealant Coating, Waterproof, Gray, 16 oz | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry - Image 1](https://m.media-amazon.com/images/I/81+HdR2ohmL.jpg)

## Questions & Answers

**Q: Can it be painted once dried?**
A: Yes Flex Seal Liquid can be painted.

**Q: how easy is clean-up**
A: Not easy.  Some utensils can be cleaned by just wiping off with a rag.  Use gloves as it is hard to get off skin. We discarded rollers and brushes.

**Q: Is this  mold resistant?**
A: Flex Seal Liquid is mildew resistant.

**Q: can this be used as a sill seal,  i am building a shed on a concrete slab and want to seal the shed frame to the concrete**
A: can I use Flex seal on my shower floor

## Frequently Bought Together

- Flex Seal Liquid, 16 oz, Gray, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement
- Flex Seal Liquid, 16 oz, Black, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

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**Shop now:** [https://www.desertcart.sg/products/34430165-rubber-sealant-coating-waterproof-gray-16-oz-stops-leaks-fast](https://www.desertcart.sg/products/34430165-rubber-sealant-coating-waterproof-gray-16-oz-stops-leaks-fast)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-08-20*