---
product_id: 208933842
title: "Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Quart"
brand: "flex paste"
price: "73151CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/208933842-flex-paste-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks
store_origin: SN
region: Senegal
---

# Fully paintable & UV resistant Waterproof & dries underwater Super thick, fills large gaps instantly Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Quart

**Brand:** flex paste
**Price:** 73151CFA
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it, paint it, forget it — Flex Paste locks out leaks like a boss!

## Quick Answers

- **What is this?** Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Quart by flex paste
- **How much does it cost?** 73151CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/208933842-flex-paste-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks)

## 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

- • **Built to Last:** UV resistant, rust-preventing, and made in the USA for trusted durability.
- • **Seal Like a Pro:** Creates a flexible, watertight rubber barrier that blocks air, water, and moisture.
- • **Massive Gap Filler:** Super thick paste clings and fills large cracks, holes, and gaps with ease.
- • **Custom Finish Ready:** Paintable once cured, blending seamlessly with your walls, roofs, or RVs.
- • **Underwater Application:** Unique formula allows application and curing even underwater—no project too wet.

## Overview

Flex Paste is a premium waterproof, paintable rubberized putty designed to fill and seal large cracks, gaps, and holes on multiple surfaces including drywall, concrete, and EPDM. It uniquely cures underwater, forms a flexible watertight barrier, and is UV resistant for long-lasting protection. Packaged in a stay-fresh container, it’s perfect for indoor and outdoor repairs on walls, roofs, RVs, and more.

## Description

Full description not available

## Features

- NEW! STAY FRESH CONTAINER – Blocks out air and locks in freshness to extend the sealing power of Flex Paste, with no waste
- COAT, SEAL & PROTECT - Penetrates deep to seal out air, water, and moisture. Once dry, it turns into a strong, flexible, watertight, rubberized barrier
- WORKS UNDERWATER - Can be applied underwater, and it even dries underwater
- FILLS LARGE AREAS - Super thick rubber paste clings to the surface and instantly fills large gaps, cracks, and holes
- FULLY PAINTABLE - Once fully cured, it can be painted any color. Helps prevent rust and corrosion, and it is UV resistant
- EXCELLENT FOR – filling cracks and holes, foundation and concrete repairs, sealing out rodents and pests, bath and shower, indoor and outdoor projects, roof, RV, motorhome, auto, marine, lawn and garden projects, DIY, hobbies, and more
- MADE IN THE USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Rubber |
| Brand | Flex Paste |
| Style | 3 lb White |
| Item Weight | 3 Pounds |
| Item dimensions L x W x H | 5 x 4.25 x 4.25 inches |
| Compatible Material | Wood, Glass, Tile, Concrete, Aluminum, Metal, Brick, Stucco, Masonry, Copper, Fabric, Fiberglass, Ceramic, Porcelain, Natural Stones, Roofing, Pvc, Eifs, Cspe, Epdm, Hypalon Polyurethanes |
| Water Resistance Level | Waterproof |
| Item Form | Paste |
| UPC | 850010226842 |
| Unit Count | 48.0 Ounce |
| Number of Items | 1 |
| Color | White |
| Surface Recommendation | Doors,Tub |
| Manufacturer | Swift Response, LLC |
| Part Number | PFSWHTR32 |
| Item Weight | 3 pounds |
| Product Dimensions | 5 x 4.25 x 4.25 inches |
| Country of Origin | USA |
| Item model number | PFSWHTR32 |
| Size | No Size |
| Item Package Quantity | 1 |
| Measurement System | US |
| Special Features | Waterproof |
| Included Components | Item |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 1 Year Limited |

## Product Details

- **Material:** Rubber
- **Brand:** Flex Paste
- **Style:** 3 lb White
- **Item Weight:** 3 Pounds
- **Item dimensions L x W x H:** 5 x 4.25 x 4.25 inches

## Images

![Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Quart - Image 1](https://m.media-amazon.com/images/I/81qBgpBU9IL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Could you do several layers or one very thick layer to create a rubberized coating on something?**
A: Absolutely, just please remember that the thicker the final coating is, the longer the cure time will be. We highly advise creating the coating by adding layers to the surface rather than just one thick coat.

**Q: Any temperature requirement?**
A: Flex Paste can be applied in a wide range of temperatures from 0°F – 150ۜ°F. Once applied and fully cured it can withstand a wider range of temperatures from -40°F – 200°F.

**Q: Can this be used to fix crack in small ref/frezer**
A: Hi there. Thank you so much for reaching out. Flex Paste can withstand low temps like that in a freezer. Although some customers have found success with similar applications, it has not been tested for its safety when coming in contact with items used for food preparation, storing, or serving. Please contact us if you have any additional questions. We're always happy to help. Flex On!

**Q: can flex paste be painted ?**
A: Yes. Must be fully cured before painting.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Product great delivery not so
*by R***R on September 2, 2025*

Product is great but delivery service is absolutely terrible! They say that you're the next stop and then they have like six other places to go before they deliver

### ⭐⭐⭐⭐⭐ Great option
*by P***3 on August 23, 2025*

Just used this on my laundry room floor where I’ve been having some water issues from my washer. So far so good. This was easy to put on and sticks well to ceramic tile. I would use this item wherever I have need.

### ⭐ Does NOT work as advertised!!!
*by C***S on October 28, 2024*

UPDATE - I have been monitoring the pipe for the last few days. While I initially thought the paste was going to provide the fix I needed, that "thought" would be incorrect. The water started leaking again. Be smart/save your money and do not buy this stuff. I'm going back to what I should have done to start with - turn off the water and replace the pipe. This Flex Paste is JUNK!!!!Had a very small leak at the base of this water faucet (small droplets of water on the PVC surface). Based on the advertisement I thought the paste would be the perfect fix. I followed the directions as stated on the container. After apply a good initial coat, I still had the small leak. The next day, I applied another coat - still had the leak. The next day, after turning off the water to everything, I applied another coat heavy/massive amount of paste using both a putty knife and my hand. Left the water off for 1 to 2 hours and the leak appears to have stopped (after using most of the paste). What a pain!!!While using the paste, I was diligent in keeping the lid on the paste. At the end of each day, I would use a rubber mallet to hammer the lid on. Regardless of the tight seal, the paste still hardened.Probably would have been easier to just replace the bad piece of PVC that was leaking.

## Frequently Bought Together

- Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Quart
- 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
- Flex Seal Liquid, 1 Gallon, White, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sn/products/208933842-flex-paste-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks](https://www.desertcart.sn/products/208933842-flex-paste-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-10*