---
product_id: 266191880
title: "Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs"
brand: "flex paste"
price: "€ 58.11"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.be/products/266191880-flex-paste-6-lb-tub-white-waterproof-paintable-putty-spackle
store_origin: BE
region: Belgium
---

# 100% waterproof & air-blocking UV & mildew resistant 6 lb heavy-duty tub Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs

**Brand:** flex paste
**Price:** € 58.11
**Availability:** ❌ Out of Stock

## Summary

> 💪 Seal it, forget it — Flex Paste keeps leaks out and confidence in.

## Quick Answers

- **What is this?** Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs by flex paste
- **How much does it cost?** € 58.11 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/266191880-flex-paste-6-lb-tub-white-waterproof-paintable-putty-spackle)

## Best For

- flex paste enthusiasts

## Why This Product

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

## Key Features

- • **Seal Like a Pro:** Stops leaks fast with a flexible, rubberized barrier that clings to multiple surfaces.
- • **Versatile Application:** Perfect for indoor/outdoor use on drywall, concrete, roofs, RVs, and more.
- • **Effortless Gap Filling:** Thick paste consistency fills cracks, holes, and gaps seamlessly for a smooth finish.
- • **Paintable & Customizable:** White base allows for easy painting to match any décor or repair site.
- • **Durability Meets Flexibility:** UV and mildew resistant formula ensures long-lasting protection without cracking.

## Overview

Flex Paste is a 6 lb tub of white, waterproof, paintable putty designed to seal gaps, cracks, and holes with a flexible, rubberized coating. It adheres to a wide range of surfaces including drywall, concrete, and EPDM, offering UV and mildew resistance for durable indoor and outdoor repairs. Ideal for professionals and DIYers aiming to block water and air infiltration quickly and effectively.

## Description

Liquid rubber in a can! It sprays out as a thick liquid, seeps into cracks and holes and dries to a watertight, flexible, rubberized coating. Coats, seals, protects and will Stop Leaks Fast!

Review: It Works! - My neighbor over waters and the extra water flooded under a wooden tool shed and the termites took advantage. He didn't want to stop the overwatering and didn't want to put plastic up against his block wall. We dug down two feet and painted our side of the wall. No water getting through at all. The new toolshed should hold up better.
Review: The product was unusable. - The product was unusable when container was first opened. It was already cured and hard.

## Features

- Stop Leaks Fast
- Clings to a wide variety of surfaces
- UV and mildew resistant
- Perfect for all types of indoor and outdoor projects and repairs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084TDWKGH |
| Best Sellers Rank | #1,396,640 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,832 in Hardware Sealers |
| Brand | Flex Paste |
| Brand Name | Flex Paste |
| Color | White |
| Compatible Material | Wood, Glass, Tile, Concrete, Aluminum, Metal, Stucco, Masonry, Copper, Fabric, Fiberglass, Ceramic, Porcelain, Natural Stones, Roofing, Pvc, Eifs, Cspe, Epdm, Hypalon Polyurethanes |
| Customer Reviews | 3.6 out of 5 stars 103 Reviews |
| Included Components | Household Item |
| Item Dimensions | 7 x 7 x 5.1 inches |
| Item Form | Paste |
| Item Type Name | Flex Seal Paste 6 lb Tub (White) FLEX SEAL - PFSWHTR64 |
| Item Weight | 6 Pounds |
| Item dimensions L x W x H | 7 x 7 x 5.1 inches |
| Manufacturer | Swift Response, LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | FLEX SEAL - PFSWHTR64 - WHITE 6LB |
| Number of Items | 1 |
| Part Number | FLEX SEAL - PFSWHTR64 |
| Style | 6 lb White |
| Style Name | 6 lb White |
| Surface Recommendation | Tub |
| UPC | 850010226828 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Paste
- **Item Weight:** 6 Pounds
- **Item dimensions L x W x H:** 7 x 7 x 5.1 inches
- **Material:** Rubber
- **Style:** 6 lb White

## Images

![Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs - Image 1](https://m.media-amazon.com/images/I/61CoJ+bWxXL.jpg)
![Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs - Image 2](https://m.media-amazon.com/images/I/81w56bUSAEL.jpg)
![Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs - Image 3](https://m.media-amazon.com/images/I/71MqY0agcOL.jpg)
![Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs - Image 4](https://m.media-amazon.com/images/I/91Wt91pk2dL.jpg)
![Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs - Image 5](https://m.media-amazon.com/images/I/81pco0em2eL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It Works!
*by D***H on September 9, 2024*

My neighbor over waters and the extra water flooded under a wooden tool shed and the termites took advantage. He didn't want to stop the overwatering and didn't want to put plastic up against his block wall. We dug down two feet and painted our side of the wall. No water getting through at all. The new toolshed should hold up better.

### ⭐ The product was unusable.
*by B***I on March 20, 2024*

The product was unusable when container was first opened. It was already cured and hard.

### ⭐⭐⭐ Tub was mostly dried out upon arrival.
*by H***Y on February 14, 2024*

I like this product and have used it before. However, this very expensive tub was half dried out already upon arrival.

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**Shop now:** [https://www.desertcart.be/products/266191880-flex-paste-6-lb-tub-white-waterproof-paintable-putty-spackle](https://www.desertcart.be/products/266191880-flex-paste-6-lb-tub-white-waterproof-paintable-putty-spackle)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-06-21*