---
product_id: 645862098
title: "Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack"
brand: "flex seal"
price: "€ 83.30"
currency: EUR
in_stock: true
reviews_count: 5
category: "Flex Seal"
url: https://www.desertcart.com.cy/products/645862098-flex-seal-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong
store_origin: CY
region: Cyprus
---

# Fully paintable for seamless finishes 100% waterproof & weatherproof seal No caulk gun needed, easy adjustable nozzle Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack

**Brand:** flex seal
**Price:** € 83.30
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, live leak-free—because your space deserves the best!

## Quick Answers

- **What is this?** Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack by flex seal
- **How much does it cost?** € 83.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/645862098-flex-seal-caulk-waterproof-and-weatherproof-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

- • **Customizable Finish:** Fully paintable to match your style and maintain a sleek, professional look every time.
- • **Durability That Lasts:** Won’t shrink, crack, or become brittle—UV and chemical resistant for long-term peace of mind.
- • **Versatile Surface Adherence:** Bonds to virtually any surface, wet or dry—windows, doors, roofs, even marine-grade projects.
- • **Ultimate Weatherproof Barrier:** Hybrid polymer formula seals out water, air, and moisture—indoor or outdoor, rain or shine.
- • **Effortless Precision Application:** Adjustable Trigger Flow Nozzle means zero mess, zero stress—perfect for busy pros.

## Overview

Flex Seal Caulk is a 9 oz hybrid polymer sealant designed for professional-grade waterproofing and weatherproofing. Its no-gun-needed, adjustable nozzle ensures clean, precise application on virtually any surface, wet or dry. Resistant to UV, chemicals, shrinking, and cracking, it’s fully paintable and ideal for indoor and outdoor use—from windows and doors to marine and automotive repairs.

## Description

Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack

Review: I got this product to help in my battle against my landlord special of an apartment and it DID NOT disappoint. From cracks around doors and windows that the light shined through to the seam under a sliding door and so much more, this product did the trick to seal up the drafty spots. It’s super easy to use and reuse. Unless you’re really looking for it you won’t even know it’s there and there’s no foul smell to it either. It sticks well to itself and to whatever you put it on. A little went a long way for me! 10/10 would (and probably will) get this product again.
Review: Easy and clean application of this clear caulk. No gun required is a plus. Used on a kitchen sink that was leaking due to a need for new caulking. Worked out great and sink no longer leaks! Great price and shipped fast. Purchased a separate tool to help with excess. Would purchase again.

## Features

- So easy to use.
- No caulk gun needed.
- Adjustable Trigger Flow Nozzle.
- Advanced hybrid polymer formulation.
- Snap & Save cap eliminates waste.
- Seals out water, air, and moisture.
- Adheres to virtually any surface, wet or dry.
- Won’t shrink, crack, or become brittle.
- UV and chemical resistant.
- Fully paintable.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2F2DCXM |
| ASIN  | B0D2F2DCXM |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #91,459 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #487 in Hardware Sealers |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,170) |
| Customer reviews | 4.4 4.4 out of 5 stars (4,170) |
| Date First Available | 24 May 2024 |
| Date First Available  | 24 May 2024 |
| Included components | Flex Caulk, White, 9 oz, 1-Pack |
| Item Package Quantity | 1 |
| Item Weight | 255 g |
| Item model number | CFSWHTR675 |
| Item model number  | CFSWHTR675 |
| Item thickness | item_thickness.string_value Inches |
| Manufacturer | Swift Response, LLC |
| Manufacturer  | Swift Response, LLC |
| Material | Hybrid Polymer |
| Measurement System | US |
| Part number | CFSWHTR675 |
| Product Dimensions | 29.21 x 4.45 x 4.45 cm; 255 g |
| Product Dimensions  | 29.21 x 4.45 x 4.45 cm; 255 g |
| Shape | Shape |
| Size | 1.75 L x 1.75 W x 11.50 H |
| Style | White, 9 oz, 1-Pack |

## Product Details

- **Brand:** Flex Seal
- **Colour:** White
- **Item form:** Liquid
- **Item weight:** 255 Grams
- **Liquid volume:** 9 Fluid Ounces

## Images

![Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack - Image 1](https://m.media-amazon.com/images/I/51bs-g2NBfL.jpg)
![Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack - Image 2](https://m.media-amazon.com/images/I/51BZXbsiqsL.jpg)
![Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack - Image 3](https://m.media-amazon.com/images/I/71Q4vv7FKsL.jpg)
![Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack - Image 4](https://m.media-amazon.com/images/I/71bfT1rJCWL.jpg)
![Flex Seal Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, White, 9 oz, 1-Pack - Image 5](https://m.media-amazon.com/images/I/71swG7x6FyL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***6 on 1 February 2026*

I got this product to help in my battle against my landlord special of an apartment and it DID NOT disappoint. From cracks around doors and windows that the light shined through to the seam under a sliding door and so much more, this product did the trick to seal up the drafty spots. It’s super easy to use and reuse. Unless you’re really looking for it you won’t even know it’s there and there’s no foul smell to it either. It sticks well to itself and to whatever you put it on. A little went a long way for me! 10/10 would (and probably will) get this product again.

### ⭐⭐⭐⭐⭐ Review
*by L***R on 28 February 2026*

Easy and clean application of this clear caulk. No gun required is a plus. Used on a kitchen sink that was leaking due to a need for new caulking. Worked out great and sink no longer leaks! Great price and shipped fast. Purchased a separate tool to help with excess. Would purchase again.

### ⭐⭐⭐⭐⭐ Review
*by J***E on 7 February 2026*

This is hands down the easiest to use. No need to use a caulking gun. The caulk comes out uniform and consistent. I sealed 2 bathrooms first then save it to use later for the last bathroom. The consistency remained the same. Cleanup was super easier and has been the fastest that I've completed sealing all the bathrooms. Would highly recommend.

## 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, White, 9 oz, 1-Pack
- ALLWAY CT31 3-in-1 Caulk Tool for Removal and Application

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**Shop now:** [https://www.desertcart.com.cy/products/645862098-flex-seal-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong](https://www.desertcart.com.cy/products/645862098-flex-seal-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong)

---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-12*