---
product_id: 312007933
title: "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: "€ 356.16"
currency: EUR
in_stock: true
reviews_count: 8
category: "Flex Paste"
url: https://www.desertcart.gr/products/312007933-max-12-lb-can-white-waterproof-paintable-putty-spackle-sealant
store_origin: GR
region: Greece
---

# Dries Underwater, Works Wet or Dry Fills Large Gaps & Cracks Instantly Waterproof & UV Resistant Seal 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:** € 356.16
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, save it, and show it off—Flex Paste MAX has your repairs covered!

## Quick Answers

- **What is this?** 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?** € 356.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/312007933-max-12-lb-can-white-waterproof-paintable-putty-spackle-sealant)

## 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

- • **Underwater Application:** Apply and cure even underwater—ideal for pools, boats, and emergency fixes
- • **Rubberized Flexible Barrier:** Creates a durable, watertight shield that blocks air, water, and moisture
- • **Paintable & UV Resistant Finish:** Seamlessly blends with your décor while preventing rust and sun damage
- • **Stay Fresh Container Technology:** Locks in sealing power, no waste, always ready for your next fix
- • **Versatile Surface Compatibility:** Perfect for walls, concrete, EPDM, roofs, RVs, and more—one paste, endless repairs

## Overview

Flex Paste MAX is a professional-grade, 12 lb waterproof, paintable putty that seals gaps, cracks, and holes with a flexible, rubberized barrier. Designed for indoor and outdoor use, it works underwater, resists UV damage, and adheres to a wide range of surfaces including concrete, drywall, and EPDM. Packaged in an innovative stay-fresh container, it ensures long-lasting sealing power with zero waste—perfect for millennial pros who demand durability and style in every repair.

## Description

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 - desertcart.com

Review: Great buy - When you are trying to repair your parents’ old house , and trying to keep costs down., this is one of the best things to use . It’s not goopy but easy to transfer, spread , and plugs the holes , tears, or whatever the damage that you found. We used some on one of our bathrooms too. Fantastic !!
Review: Sealed basement cracks and lowered radon levels - I loved this product. I used it to seal the cracks in my basement and 6 weeks later my radon levels have been cut in half!

## 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 |
|---------------|-------|
| ASIN | B084TDHKVJ |
| Best Sellers Rank | #433,019 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,111 in Hardware Sealers |
| Brand Name | Flex Paste |
| Color | White |
| 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 |
| Customer Reviews | 4.0 4.0 out of 5 stars (120) |
| Included Components | Household Item |
| Item Dimensions | 7.75 x 6.75 x 6.75 inches |
| Item Form | Paste |
| Item Type Name | Flex Seal Paste MAX 12 lb Tub (White) FLEX SEAL - PFSMAXWHT01 |
| Item Weight | 12 Pounds |
| Manufacturer | Swift Response, LLC |
| Material Type | Rubber |
| Model | FLEX SEAL - PFSMAXWHT01 - WHITE |
| Number of Items | 1 |
| Part Number | PFSMAXWHT01 |
| Style Name | 12 lb WHT |
| Surface Recommendation | Tub |
| UPC | 850010226897 |
| Unit Count | 192.0 Ounce |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great buy
*by D***Z on October 19, 2021*

When you are trying to repair your parents’ old house , and trying to keep costs down., this is one of the best things to use . It’s not goopy but easy to transfer, spread , and plugs the holes , tears, or whatever the damage that you found. We used some on one of our bathrooms too. Fantastic !!

### ⭐⭐⭐⭐⭐ Sealed basement cracks and lowered radon levels
*by P***R on August 8, 2021*

I loved this product. I used it to seal the cracks in my basement and 6 weeks later my radon levels have been cut in half!

### ⭐ Shame! shame! shame!
*by A***R on September 27, 2024*

Rating is "0". Product could not be used. It was as hard as a brick. We tried to make a hole toward the bottom to see if it was softer, it was as hard as the top. We tried to spread it on the roof, it would not work. We has to run to Walmart to get new cans to do the job.

## 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
- Flex Tape, MAX, 4 in x 25 ft, Clear, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs
- 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.gr/products/312007933-max-12-lb-can-white-waterproof-paintable-putty-spackle-sealant](https://www.desertcart.gr/products/312007933-max-12-lb-can-white-waterproof-paintable-putty-spackle-sealant)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-26*