---
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: "฿2528"
currency: THB
in_stock: true
reviews_count: 8
category: "Flex Seal"
url: https://www.desertcart.co.th/products/624311349-flex-caulk-waterproof-and-weatherproof-hybrid-polymer-sealant-strong-paintable
store_origin: TH
region: Thailand
---

# Adjustable Trigger Flow Nozzle for Precision 100% Waterproof & Weatherproof Seal Fast Initial Hardening in 10 Minutes 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:** ฿2528
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smarter, not harder—flex your fix-it skills with Flex Caulk!

## 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?** ฿2528 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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

- • **Paintable Perfection:** Seamlessly blends with your décor for a flawless finish.
- • **Durability That Lasts:** Won’t shrink, crack, or become brittle—UV & chemical resistant.
- • **Waste-Free Innovation:** Snap & Save cap eliminates product waste and keeps it fresh.
- • **Effortless Application:** No caulk gun needed—seal like a pro with zero mess.
- • **Ultimate Surface Versatility:** Bonds to virtually any surface, wet or dry, indoors and outdoors.

## Overview

Flex Caulk is a clear, hybrid polymer sealant designed for both indoor and outdoor use. It offers waterproof, weatherproof protection with fast curing and strong adhesion to a wide range of surfaces, including wet ones. Featuring an adjustable trigger flow nozzle and a Snap & Save cap, it ensures precision application and minimal waste. Fully paintable and resistant to UV and chemicals, it’s the ultimate all-in-one sealant trusted by DIYers and pros alike.

## 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: Easy to use - Worked well to seal air leaks in my 4 seasons room. Super easy to use and not very messy. I already bought another tube. The cap comes on and off easily. Way better then traditional caulk
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!

## 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 | #164 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Adhesive Caulk |
| Brand | Flex Seal |
| Brand Name | Flex Seal |
| Color | Clear |
| Customer Reviews | 4.3 out of 5 stars 4,020 Reviews |
| Full Cure Time | 24 Hours |
| Included Components | Flex Caulk, Clear, 6.6 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 |
| Material Type | Hybrid Polymer |
| 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)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to use
*by S***A on January 20, 2026*

Worked well to seal air leaks in my 4 seasons room. Super easy to use and not very messy. I already bought another tube. The cap comes on and off easily. Way better then traditional caulk

### ⭐⭐⭐⭐⭐ 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.

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

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-09*