---
product_id: 742836371
title: "Flex Caulking, Waterproof & Weather Resistant Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboard, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.5 oz, 1"
brand: "flex seal"
price: "382.48 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Flex Seal"
url: https://www.desertcart.tn/products/742836371-flex-caulking-waterproof-and-weather-resistant-hybrid-polymer-sealant-strong
store_origin: TN
region: Tunisia
---

# 100% Paintable Finish 100% Waterproof Seal No Caulking Gun Needed Flex Caulking, Waterproof & Weather Resistant Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboard, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.5 oz, 1

**Brand:** flex seal
**Price:** 382.48 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal Smart, Live Leak-Free — The Ultimate Hybrid Caulk for Every Surface!

## Quick Answers

- **What is this?** Flex Caulking, Waterproof & Weather Resistant Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboard, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.5 oz, 1 by flex seal
- **How much does it cost?** 382.48 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/742836371-flex-caulking-waterproof-and-weather-resistant-hybrid-polymer-sealant-strong)

## Best For

- flex seal enthusiasts

## Why This Product

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

## Key Features

- • **Fast Initial Set:** Hardens in just 10 minutes with a full cure in 24 hours, so your projects stay on schedule.
- • **Seamless Paintability:** 100% paintable for a flawless finish that blends perfectly with your décor.
- • **Durable Hybrid Polymer:** Advanced formula resists shrinking, cracking, UV rays, and chemicals for long-lasting protection.
- • **Effortless Application:** Adjustable trigger flow nozzle for precise, mess-free sealing without a caulking gun.
- • **Universal Surface Adhesion:** Bonds securely to almost any surface—wet or dry—indoor or outdoor, from wood to marine-grade materials.

## Overview

Flex Caulking is a versatile, waterproof hybrid polymer sealant designed for indoor and outdoor use. Its easy-to-use nozzle eliminates the need for a caulking gun, while its advanced formula ensures a durable, paintable, and flexible seal that resists shrinking, cracking, UV damage, and chemicals. Ideal for everything from sinks and windows to RVs and marine applications, it bonds to nearly any surface—wet or dry—and cures fully in 24 hours, making it the go-to solution for professionals and DIYers seeking reliable, long-lasting protection.

## Description

Flex Caulk, Waterproof & Weather Resistant Hybrid Polymer Sealant Strong, Paintable, Indoor, Outdoor, Bus, Shower, Sink, Windows, Baseboard, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.5 oz, 1 Pack

Review: Better quality caulking, easy to apply - When replacing a failing under-counter mounted sink (the glue failed), I chose a drop in replacement sink (also reviewed on desertcart), so it won't Halen again (unless gravity fails!). This is the sealant I used you ensure the new sink would not leak around the rim. Other herbal kitchen/ bathroom soft white caulking makes nice edges, but often gives out, needing replaced. THIS stuff is tough, and with a generous ring sandwiched around the sink beneath the flange/ rim, this stuff will both seal and ensure the sink remains firm in place. Of course I added the sink recommended bracing beneath, to ensure the sink stayed in place while the Flex Caulk was drying. This stuff is easy to apply, and not watery like the generic cheap stuff in the hardware warehouse stores. Months after installation, this caulking is firm in place, wipe-able along the sink edges with a wet rag, and "semi-rigid" (flexible yes, but firm in place).
Review: Easy to use and does what it says - Easy to use and works great.

## Features

- Very easy to use
- 100% Paintable
- No caulking gun needed
- Adjustable trigger flow nozzle
- Advanced hybrid polymer formula
- Snap & save cap eliminates waste
- Insulates water, air and moisture
- Adheres to almost any surface, wet or dry
- Will not shrink, crack or become brittle
- UV and chemical resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2FKV95Q |
| Brand | Flex Seal |
| Brand Name | Flex Seal |
| Colour | clear |
| Country of Publication | USA |
| Customer Reviews | 4.4 out of 5 stars 1,822 Reviews |
| Full Cure Time | 24 Hours |
| Included Components | Flex Caulk, Clear, 6.5 oz, 1 Pack |
| Initial Hardening Time | 10 minutes Minutes |
| Item Form | Liquid |
| Item Weight | 6.6 Ounces |
| Liquid Volume | 6.6 Fluid Ounces |
| Manufacturer | Swift Response, LLC |
| Manufacturer Part Number | CFSCLRR675 |
| Material Type | Hybrid Polymer |
| Model | CFSCLRR675 |
| Number of Items | 1 |
| Size of liquid in ounces | 6.6 Fluid Ounces |
| Surface Recommendation | Tile, pipe, counter top, window, door, sink, tub, wall, gutter |
| UPC | 810129870787 |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Seal
- **Colour:** clear
- **Full Cure Time:** 24 Hours
- **Item Weight:** 6.6 Ounces
- **Liquid Volume:** 6.6 Fluid Ounces

## Images

![Flex Caulking, Waterproof & Weather Resistant Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboard, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.5 oz, 1 - Image 1](https://m.media-amazon.com/images/I/61div+JfYVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better quality caulking, easy to apply
*by K***S on 5 April 2026*

When replacing a failing under-counter mounted sink (the glue failed), I chose a drop in replacement sink (also reviewed on Amazon), so it won't Halen again (unless gravity fails!). This is the sealant I used you ensure the new sink would not leak around the rim. Other herbal kitchen/ bathroom soft white caulking makes nice edges, but often gives out, needing replaced. THIS stuff is tough, and with a generous ring sandwiched around the sink beneath the flange/ rim, this stuff will both seal and ensure the sink remains firm in place. Of course I added the sink recommended bracing beneath, to ensure the sink stayed in place while the Flex Caulk was drying. This stuff is easy to apply, and not watery like the generic cheap stuff in the hardware warehouse stores. Months after installation, this caulking is firm in place, wipe-able along the sink edges with a wet rag, and "semi-rigid" (flexible yes, but firm in place).

### ⭐⭐⭐⭐⭐ Easy to use and does what it says
*by L***R on 17 June 2026*

Easy to use and works great.

### ⭐⭐⭐⭐⭐ Best choice you can make when trying to flex your caulk.
*by E***E on 27 April 2026*

I'm all caulked up at home. Love it. Water resistant and durable. Not messy and easy to use. Best choice in caulking I could find. Will use with everything.

## Frequently Bought Together

- Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.6 oz, 1-Pack
- Flex Seal, 14 oz, Clear, Stop Leaks Instantly, Transparent Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

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**Shop now:** [https://www.desertcart.tn/products/742836371-flex-caulking-waterproof-and-weather-resistant-hybrid-polymer-sealant-strong](https://www.desertcart.tn/products/742836371-flex-caulking-waterproof-and-weather-resistant-hybrid-polymer-sealant-strong)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-13*