---
product_id: 624311349
title: "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"
brand: "flex seal"
price: "₨15117"
currency: LKR
in_stock: true
reviews_count: 8
category: "Flex Seal"
url: https://www.desertcart.lk/products/624311349-flex-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong-paintable
store_origin: LK
region: Sri Lanka
---

# Adjustable Trigger Flow Nozzle for precision 100% Waterproof & Weatherproof No caulk gun needed, ready-to-use 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

**Brand:** flex seal
**Price:** ₨15117
**Availability:** ✅ In Stock

## Summary

> 💪 Seal Smart, Live Confident: The Last Caulk You'll Ever Need!

## Quick Answers

- **What is this?** 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 by flex seal
- **How much does it cost?** ₨15117 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/624311349-flex-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong-paintable)

## 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

- • **Mess-Free & Waste-Smart:** Snap & Save cap prevents waste, making every drop count.
- • **Versatile Surface Adhesion:** Bonds to virtually any surface—wet or dry—without shrinking or cracking.
- • **Ultimate Weatherproof Barrier:** Seals out water, air, and moisture to protect your home and gear indoors and out.
- • **Durable Hybrid Polymer Formula:** UV and chemical resistant for long-lasting, paintable protection.
- • **Effortless Precision Application:** Adjustable nozzle lets you control flow for flawless sealing every time.

## Overview

Flex Caulk is a cutting-edge hybrid polymer sealant designed for both indoor and outdoor use. Its waterproof, weatherproof formula adheres to nearly any surface—wet or dry—without shrinking, cracking, or brittleness. Featuring an adjustable trigger flow nozzle and no need for a caulk gun, it offers precision and ease for DIY pros and novices alike. UV and chemical resistant, fully paintable, and equipped with a Snap & Save cap, this 6.6 oz clear sealant delivers durable, mess-free protection for windows, doors, baths, roofs, marine, and automotive applications.

## Description

desertcart.com: 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 : Industrial & Scientific

Review: Absolutely incredible product 5 Stars! - I am no handyman and definitely not good at DIY stuff around the House, but this practical and excellent product gave me the confidence to seal up my Window in my Basement and it worked flawlessly! I can’t say enough good things about this product! It’s easy to use and does exactly as the product claims and there was virtually no mess!
Review: Very easy to use - If you follow the instructions it should work easy peasy. I bought an actual caulk gun with caulk and I hate it. This flex seal product works great It's super easy.

## 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 | B0D2FKV95Q |
| Best Sellers Rank | #169 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Adhesive Caulk |
| Brand | Flex Seal |
| Color | Clear |
| Date First Available | April 22, 2024 |
| Full Cure Time | 24 Hours |
| Initial Hardening Time | 10 minutes Minutes |
| Item Form | Liquid |
| Item Weight | 6.6 ounces |
| Item model number | CFSCLRR675 |
| Liquid Volume | 6.6 Fluid Ounces |
| Manufacturer | Swift Response, LLC |
| Material | Hybrid Polymer |
| Number of Items | 1 |
| Product Dimensions | 11.5 x 1.75 x 1.75 inches |
| Surface Recommendation | Tile, Pipe, Counter Top, Window, Door, Sink, Tub, Walls, Gutter |
| UPC | 810129870787 |
| Unit Count | 6.6 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61div+JfYVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absolutely incredible product 5 Stars!
*by J***T on November 22, 2025*

I am no handyman and definitely not good at DIY stuff around the House, but this practical and excellent product gave me the confidence to seal up my Window in my Basement and it worked flawlessly! I can’t say enough good things about this product! It’s easy to use and does exactly as the product claims and there was virtually no mess!

### ⭐⭐⭐⭐⭐ Very easy to use
*by K***Y on January 6, 2026*

If you follow the instructions it should work easy peasy. I bought an actual caulk gun with caulk and I hate it. This flex seal product works great It's super easy.

### ⭐⭐⭐⭐ Excellent Caulking Product
*by G***S on July 16, 2024*

If you want to re-caulk your bathtub, Flex Caulk is an excellent product. I’ve never done caulking. So I thought I’d try it myself using this product. I bought a caulk scraper n Amazon for under $10. That is essential to remove the old, ugly, blackened caulk. Yes, that’s some hard work which took about 30 minutes of scraping and washing. But once that was done, the flex caulk worked really well. You set the bottle for the lowest bead size. And you just press and move the bottle along the gap where the caulk should go. No, I didn’t do a super professional job. But overall it looks great and much better than before! The problem I had was not consistently just moving across the gap. I stopped a few times, and the caulk can build up in certain spots. Then you need a paper towel to remove it. And you need to wear gloves as caulk is very messy. But if you just glide the bottle and press you will get a beautiful bead. It dries fast. They say 24 hours for complete hardening. And now 90% of my caulking looks great. But there are a few spots where it got a little messy. Overall, I am very pleased with this flex caulk!

## 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.lk/products/624311349-flex-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong-paintable](https://www.desertcart.lk/products/624311349-flex-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong-paintable)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-25*