---
product_id: 770099470
title: "Flex Paste 3-Pound Jar"
brand: "フレックスシール(flex seal)"
price: "€ 35.92"
currency: EUR
in_stock: false
url: https://www.desertcart.pt/products/770099470-flex-paste-3-pound-jar
store_origin: PT
region: Portugal
---

# Fully paintable after curing Waterproof & usable underwater 3 lb super thick rubber paste Flex Paste 3-Pound Jar

**Brand:** フレックスシール(flex seal)
**Price:** € 35.92
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Seal it, fill it, and flex your fix-it skills with Flex Paste!

## Quick Answers

- **What is this?** Flex Paste 3-Pound Jar by フレックスシール(flex seal)
- **How much does it cost?** € 35.92 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/770099470-flex-paste-3-pound-jar)

## Best For

- フレックスシール(flex seal) enthusiasts

## Why This Product

- Trusted フレックスシール(flex seal) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Gap Filler:** Super thick formula fills large cracks, holes, and gaps with ease—no more wasted time or materials.
- • **Versatile DIY Essential:** Ideal for everything from foundation repairs to pest-proofing and shower sealing—your all-in-one fix-it paste.
- • **Custom Finish Flexibility:** Once cured, paint over it any color to match your style or project needs—UV and corrosion resistant.
- • **Seal & Protect Like a Pro:** Creates a flexible, waterproof rubber barrier that locks out air, water, and moisture.
- • **Underwater Application Ready:** Unique formula cures underwater, perfect for marine, RV, and outdoor projects.

## Overview

Flex Paste 3-Pound Jar is a heavy-duty, rubberized sealant that penetrates deep to create a flexible, waterproof barrier. It fills large cracks and holes instantly, cures underwater, and is fully paintable, making it perfect for a wide range of indoor and outdoor repair projects. Made in the USA, it’s rust, corrosion, and UV resistant for long-lasting protection.

## Description



## Features

- Brand New! MAINTAIN FRESH CONTAINERS - Keeps air out and locks in freshness, expands the seal of the flex paste and eliminates waste
- COAT, SEAL, PROTECT - Penetrates deep and seals out air, water, and moisture. Once dry, it turns into a strong, flexible, waterproof rubberized barrier
- Can be used underwater - can be used in water and dry in water
- FILL LARGE AREA - Super thick rubber paste bonds to the surface and fills large gaps, cracks and holes instantly
- Fully Paintable - Once fully cured, you can paint any color. Rust and corrosion resistant and UV resistant
- EXCELLENT USES - Fill cracks and holes, repair foundation and concrete, seal rodents and pests, bath and shower, indoor and outdoor projects, roof, RV, camper, automotive, marine, lawn and garden projects, DIY, hobbies and more
- Made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | フレックスシール(Flex Seal) |
| Model Number | FLEX SEAL - PFSBLKR32 - BLACK |
| Product Dimensions | 12.7 x 10.8 x 10.8 cm; 1.36 kg |
| Color | Black |
| Name List for Name Plates | 3lb Black |
| Material | Rubber |
| Are Batteries Included | No |
| Item Weight | 1.36 Kilograms |

## Product Details

- **Material:** Rubber
- **Brand:** フレックスシール(Flex Seal)
- **Style:** 3lb Black
- **Item Weight:** 1.36 kg
- **Item dimensions L x W x H:** 12.7 x 10.8 x 10.8 cm

## Images

![Flex Paste 3-Pound Jar - Image 1](https://m.media-amazon.com/images/I/81FPMiQYSaL.jpg)
![Flex Paste 3-Pound Jar - Image 2](https://m.media-amazon.com/images/I/81+AnSSIJWL.jpg)
![Flex Paste 3-Pound Jar - Image 3](https://m.media-amazon.com/images/I/91OXreJ6HEL.jpg)
![Flex Paste 3-Pound Jar - Image 4](https://m.media-amazon.com/images/I/91PF0TCpxML.jpg)
![Flex Paste 3-Pound Jar - Image 5](https://m.media-amazon.com/images/I/81d9MBciwqL.jpg)

## 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.

## 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, Black, Quart
- Flex Seal, 14 oz, Clear, Stop Leaks Instantly, Transparent Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More
- Flex Seal Liquid, 16 oz, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

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**Shop now:** [https://www.desertcart.pt/products/770099470-flex-paste-3-pound-jar](https://www.desertcart.pt/products/770099470-flex-paste-3-pound-jar)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-20*