---
product_id: 312007933
title: "Flex Paste MAX, 12 lb Can, 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: "€ 339.02"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/312007933-flex-paste-max-12-lb-can-white-waterproof-paintable-putty
store_origin: ES
region: Spain
---

# Dries Underwater, No Compromise 12 lb Super Thick Rubber Paste Waterproof & UV Resistant Seal Flex Paste MAX, 12 lb Can, 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:** € 339.02
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal Smart, Stay Fresh, Fix Fast!

## Quick Answers

- **What is this?** Flex Paste MAX, 12 lb Can, 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?** € 339.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/312007933-flex-paste-max-12-lb-can-white-waterproof-paintable-putty)

## 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

- • **All-Weather Armor:** Creates a flexible, watertight rubber barrier that seals out water, air, and moisture.
- • **Paint It Your Way:** Fully paintable once cured, blending seamlessly with your design while preventing rust and UV damage.
- • **Instant Gap Filler:** Super thick paste clings and fills large cracks, holes, and gaps with ease.
- • **Ultimate Freshness Lock:** Stay Fresh Container blocks air to keep sealant potent and waste-free.
- • **Versatile Pro-Grade Repair:** Perfect for walls, roofs, RVs, concrete, marine, and more — your go-to for indoor/outdoor fixes.

## Overview

Flex Paste MAX is a 12 lb waterproof, paintable rubberized putty designed to fill large gaps, cracks, and holes. It features a stay-fresh container that locks out air to maintain sealing power, dries even underwater, and forms a flexible, UV-resistant barrier ideal for a wide range of indoor and outdoor repairs including walls, roofs, RVs, and concrete.

## 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 | 12 lb WHT |
| Item Weight | 12 Pounds |
| Water Resistance Level | Waterproof |
| Item Form | Paste |
| UPC | 850010226897 |
| Unit Count | 192.0 Ounce |
| Number of Items | 1 |
| Color | White |
| Surface Recommendation | Tub |
| Manufacturer | Swift Response, LLC |
| Part Number | PFSMAXWHT01 |
| Item Weight | 12 pounds |
| Item model number | FLEX SEAL - PFSMAXWHT01 - WHITE |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Cutting Diameter | 1 Millimeters |
| Measurement System | US |
| Included Components | Household Item |
| Batteries Included? | No |
| Batteries Required? | No |
| Assembled Diameter | 1 Millimeters |

## Product Details

- **Material:** Rubber
- **Brand:** Flex Paste
- **Style:** 12 lb WHT
- **Item Weight:** 12 Pounds
- **Item dimensions L x W x H:** 7.75 x 6.75 x 6.75 inches

## Images

![Flex Paste MAX, 12 lb Can, 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/81vv0bSfptL.jpg)
![Flex Paste MAX, 12 lb Can, 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/81riPhn3yfL.jpg)
![Flex Paste MAX, 12 lb Can, 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/71D0F0Q1feL.jpg)
![Flex Paste MAX, 12 lb Can, 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/81tplSJMsDL.jpg)
![Flex Paste MAX, 12 lb Can, 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/91S6B0JXcFL.jpg)

## Frequently Bought Together

- Flex Paste MAX, 12 lb Can, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs
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- Flex Tape, MAX, 4 in x 25 ft, White, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs

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**Shop now:** [https://www.desertcart.es/products/312007933-flex-paste-max-12-lb-can-white-waterproof-paintable-putty](https://www.desertcart.es/products/312007933-flex-paste-max-12-lb-can-white-waterproof-paintable-putty)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-22*