---
product_id: 14093110
title: "304132 Flex-Grip 550 Water Based Duct Sealant - 1 Gallon"
brand: "hardcast"
price: "€ 131.17"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/14093110-304132-flex-grip-550-water-based-duct-sealant-1-gallon
store_origin: PT
region: Portugal
---

# Water-based formula for eco-friendly sealing Compact 7.5 lbs pail for easy handling Strong adhesion on multiple surfaces 304132 Flex-Grip 550 Water Based Duct Sealant - 1 Gallon

**Brand:** hardcast
**Price:** € 131.17
**Availability:** ✅ In Stock

## Summary

> 💧 Seal smart, work clean — the future of duct sealing is here!

## Quick Answers

- **What is this?** 304132 Flex-Grip 550 Water Based Duct Sealant - 1 Gallon by hardcast
- **How much does it cost?** € 131.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/14093110-304132-flex-grip-550-water-based-duct-sealant-1-gallon)

## Best For

- hardcast enthusiasts

## Why This Product

- Trusted hardcast brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Power Pail:** 1-gallon size balances volume and portability for on-the-go projects
- • **Multi-Surface Mastery:** Seals ducts, vents, and more with superior adhesion—no compromises
- • **Durable Water Resistance:** Keeps your HVAC system airtight and efficient, rain or shine
- • **Trusted Hardcast Quality:** Backed by a leading brand known for reliability and performance
- • **Eco-smart Water-Based Sealant:** Safe, low-odor, and environmentally responsible for modern HVAC pros

## Overview

The Hardcast 304132 Flex-Grip 550 is a 1-gallon, water-based duct sealant designed for professional HVAC applications. Weighing 7.5 pounds, this gray liquid sealant offers strong adhesion across multiple surfaces while providing durable water resistance. Its eco-friendly, low-odor formula ensures a clean, efficient sealing process, making it a trusted choice for maintaining airtight duct systems.

## Description

The item is FLEX-GRIP 550 WATER BASED DUCT - HARDCAST 304132, SEALANT 1-GAL PAIL GRAY with UPC: 638532800050. FLEX-GRIP 550 WATER BASED DUCT is manufactured by: HARDCAST. FLEX-GRIP 550 WATER BASED DUCT is a component that has the part number of: 304132. And weighs at around 12.00 lbs.

## Features

- HARDCAST 304132 FLEXGRIP 550 WATER BASED DUCT SEALANT 1GAL PAIL GRAY

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Hardcast |
| Brand | Hardcast |
| Style | Compact |
| Item Weight | 7.5 Pounds |
| Water Resistance Level | Water Resistant |
| Item Form | Liquid |
| UPC | 063853280005 |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Color | gray |
| Surface Recommendation | [Multiple] |
| Manufacturer | Hardcast |
| Part Number | 304132 |
| Item Weight | 7.5 pounds |
| Package Dimensions | 8.9 x 7.72 x 7.72 inches |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Hardcast
- **Brand:** Hardcast
- **Style:** Compact
- **Item Weight:** 7.5 Pounds
- **Water Resistance Level:** Water Resistant

## Images

![304132 Flex-Grip 550 Water Based Duct Sealant - 1 Gallon - Image 1](https://m.media-amazon.com/images/I/31n7jdXswvL.jpg)

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**Shop now:** [https://www.desertcart.pt/products/14093110-304132-flex-grip-550-water-based-duct-sealant-1-gallon](https://www.desertcart.pt/products/14093110-304132-flex-grip-550-water-based-duct-sealant-1-gallon)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-19*