---
product_id: 421863452
title: "Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Cartridge"
brand: "flex paste"
price: "฿3350"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/421863452-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks-holes-block
store_origin: TH
region: Thailand
---

# Fully paintable Dries underwater Waterproof & UV resistant Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Cartridge

**Brand:** flex paste
**Price:** ฿3350
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, paint it, forget it — the ultimate fix for every crack and crevice!

## Quick Answers

- **What is this?** Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Cartridge by flex paste
- **How much does it cost?** ฿3350 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/421863452-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks-holes-block)

## 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

- • **Fill Big, Fix Fast:** Super thick paste clings instantly to fill large gaps, cracks, and holes with ease.
- • **Custom Finish Ready:** Once cured, paint over it seamlessly to match any décor while preventing rust and UV damage.
- • **Freshness Locked In:** Innovative stay-fresh container prevents waste and keeps the paste effective longer.
- • **Seal with Confidence:** Creates a flexible, rubberized barrier that blocks air, water, and moisture for lasting protection.
- • **Underwater Application:** Unique formula allows application and curing even underwater—perfect for tough repairs.

## Overview

Flex Paste is a premium waterproof, paintable rubberized putty designed to seal gaps, cracks, and holes on multiple surfaces including walls, drywall, concrete, and roofs. Its innovative stay-fresh container extends product life, while its unique formula allows application and drying underwater. Once cured, it forms a flexible, UV-resistant barrier that can be painted over, preventing rust and corrosion for durable, professional-grade repairs.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Rubber |
| Brand | Flex Paste |
| Style | 9 oz White |
| Item Weight | 9 Ounces |
| Item dimensions L x W x H | 28.6 x 7.6 x 7.6 Centimeters |
| Water Resistance Level | Waterproof |
| Item Form | Paste |
| UPC | 850010226866 |
| Net Quantity | 266.16 Milliliters |
| Number of Items | 1 |
| Colour | White |
| Surface Recommendation | Walls, Drywall, EPDM, Concrete, Roof, RV Repairs |
| Manufacturer | Swift Response, LLC |
| Model number | PFSWHTR10 |
| Special Feature | waterproof |
| Specific Product Use | waterproof |
| Item Weight | 255 g |
| Product Dimensions | 28.58 x 7.62 x 7.62 cm; 255.15 g |
| Item model number | PFSWHTR10 |
| Item Height | 3 Inches |
| Item Width | 3 Inches |
| Are batteries included? | No |

## Product Details

- **Material:** Rubber
- **Brand:** Flex Paste
- **Style:** 9 oz White
- **Item Weight:** 9 Ounces
- **Item dimensions L x W x H:** 28.6 x 7.6 x 7.6 Centimeters

## Images

![Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Cartridge - Image 1](https://m.media-amazon.com/images/I/61nIVkJXywL.jpg)

## 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, Cartridge
- Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.6 oz, 1-Pack

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**Shop now:** [https://www.desertcart.co.th/products/421863452-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks-holes-block](https://www.desertcart.co.th/products/421863452-waterproof-paintable-putty-spackle-sealant-fill-gaps-cracks-holes-block)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-03*