---
product_id: 724163769
title: "Flex Caulk, Silicone, Waterproof & Weatherproof Sealant, Strong, Indoor, Outdoor, Bath, Kitchen, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Glass, Tile, Marine, White, 6.5 oz, 1-Pack"
brand: "flex seal"
price: "185 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Flex Seal"
url: https://www.desertcart.ro/products/724163769-flex-caulk-silicone-waterproof-and-weatherproof-sealant-strong-indoor-outdoor
store_origin: RO
region: Romania
---

# UV & chemical resistant durability 100% waterproof & weatherproof No caulk gun needed, easy application Flex Caulk, Silicone, Waterproof & Weatherproof Sealant, Strong, Indoor, Outdoor, Bath, Kitchen, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Glass, Tile, Marine, White, 6.5 oz, 1-Pack

**Brand:** flex seal
**Price:** 185 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, live leak-free — the last caulk you'll ever need!

## Quick Answers

- **What is this?** Flex Caulk, Silicone, Waterproof & Weatherproof Sealant, Strong, Indoor, Outdoor, Bath, Kitchen, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Glass, Tile, Marine, White, 6.5 oz, 1-Pack by flex seal
- **How much does it cost?** 185 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/724163769-flex-caulk-silicone-waterproof-and-weatherproof-sealant-strong-indoor-outdoor)

## 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

- • **All-Weather Shield:** 100% silicone formula that resists shrinking, cracking, and harsh UV exposure.
- • **Effortless Precision:** Adjustable Trigger Flow Nozzle for mess-free, controlled sealing every time.
- • **Waste-Free Innovation:** Snap & Save cap design eliminates product waste and keeps your sealant fresh.
- • **Versatile Surface Grip:** Bonds seamlessly to wood, glass, tile, metal, and more—indoor or outdoor.
- • **Long-Lasting Protection:** Flexible and durable sealant that stands strong for years without brittleness.

## Overview

Flex Caulk is a premium 100% silicone sealant designed for indoor and outdoor use, offering waterproof, weatherproof, and UV-resistant protection. Its innovative no-gun, adjustable nozzle system ensures precise, mess-free application on a wide range of surfaces, from kitchen sinks to marine environments. Durable and flexible, it prevents cracks and shrinkage, delivering a long-lasting seal that keeps your spaces airtight and moisture-free.

## Description

Flex Caulk, Silicone, Waterproof & Weatherproof Sealant, Strong, Indoor, Outdoor, Bath, Kitchen, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Glass, Tile, Marine, White, 6.5 oz, 1-Pack: desertcart.com: Industrial & Scientific

Review: Great product!!! - 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 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

## Features

- No caulk gun needed
- So easy to use
- Adjustable Trigger Flow Nozzle
- 100% silicone caulk
- Snap & Save cap eliminates waste
- Seals out water, air, and moisture
- Won’t shrink, crack, or become brittle
- UV & chemical resistant
- Flexible and durable, lasts for years
- 100% waterproof and weatherproof

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F337L4W8 |
| Best Sellers Rank | #154 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Adhesive Caulk #9 in Industrial Sealants #570 in Hardware |
| Brand | Flex Seal |
| Color | White |
| Date First Available | March 31, 2025 |
| Full Cure Time | 24 Hours |
| Item Form | Aerosol |
| Item Weight | 9.9 ounces |
| Item model number | US600WHT200 |
| Liquid Volume | 6.5 Fluid Ounces |
| Manufacturer | Swift Response, LLC |
| Material | Silicone |
| Number of Items | 1 |
| Product Dimensions | 11.5 x 2 x 2 inches |
| Surface Recommendation | Porcelain, tile, metal, glass, fiberglass, wood, granite, stone, marble, fabric, upholstery, paper, and just about any other surface that is free of grease and oil. |
| UPC | 810129871609 |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Seal
- **Color:** White
- **Full Cure Time:** 24 Hours
- **Item Form:** Aerosol
- **Liquid Volume:** 6.5 Fluid Ounces

## Images

![Flex Caulk, Silicone, Waterproof & Weatherproof Sealant, Strong, Indoor, Outdoor, Bath, Kitchen, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Glass, Tile, Marine, White, 6.5 oz, 1-Pack - Image 1](https://m.media-amazon.com/images/I/61WWXB1uIOL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!!!
*by C***6 on February 1, 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.

### ⭐⭐⭐⭐⭐ 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!

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**Shop now:** [https://www.desertcart.ro/products/724163769-flex-caulk-silicone-waterproof-and-weatherproof-sealant-strong-indoor-outdoor](https://www.desertcart.ro/products/724163769-flex-caulk-silicone-waterproof-and-weatherproof-sealant-strong-indoor-outdoor)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-08*