---
product_id: 661465321
title: "Corning 789 Weatherproofing Silicon Sealent,300 ML,Black"
brand: "dow"
price: "€ 43.24"
currency: EUR
in_stock: true
reviews_count: 5
category: "Dow"
url: https://www.desertcart.fi/products/661465321-corning-789-weatherproofing-silicon-sealent-300-ml-black
store_origin: FI
region: Finland
---

# Sleek black finish Weatherproof & water-resistant 300 ML precision volume Corning 789 Weatherproofing Silicon Sealent,300 ML,Black

**Brand:** dow
**Price:** € 43.24
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal the deal with Dow Corning 789 – where durability meets sleek style!

## Quick Answers

- **What is this?** Corning 789 Weatherproofing Silicon Sealent,300 ML,Black by dow
- **How much does it cost?** € 43.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/661465321-corning-789-weatherproofing-silicon-sealent-300-ml-black)

## Best For

- dow enthusiasts

## Why This Product

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

## Key Features

- • **Precision Cleanup:** Excess sealant wipes off easily with thinner, keeping your project neat and polished.
- • **Versatile Adhesion:** Perfectly bonds to concrete, glass, and metal—ideal for high-rise windows and roof cracks.
- • **Neutral Cure Formula:** Odorless, non-corrosive curing ensures a clean, professional finish without the stink.
- • **Effortless Application:** Smooth texture with easy-dispense nozzle for flawless sealing every time.
- • **Ultimate Weather Defense:** Superior weatherproofing that stands strong against heavy rain and harsh conditions.

## Overview

Dow Corning 789 Weatherproofing Silicone Sealant is a 300 ML black sealant designed for robust, long-lasting protection in building applications. Known for its neutral curing, easy application with nozzle, and excellent adhesion to concrete and glass, it offers reliable weather resistance ideal for high-rise windows, roofs, and more. Its odorless formula and easy cleanup make it a top choice for professionals seeking durable, clean finishes.

## Description

Dow Corning 789 is a very very well and widely accepted sealant in India for majority applications in buildings.

Review: I saw this silicone used for window sealing for high-rise buildings. I used it for my kitchen sealing, which is little way too much. Some pros and cons: - PROS: - 1. Perfect texture and easy to dispense. 2. Comes with nozzle. 3. Neutral curing, and hence no smell. 4. Excess can be wiped off with thinner. CONS: - 1. Black color, so not suitable for surfaces, which are visible. 2. Curing takes 6~7 days (entire layer).
Review: Item well adhere to concrete. Make sure to clean all loose debris and dry before apply. I used on roof cracks and no water leaking in continuous rain. Received with nozzle.

## Features

- Package Contain - 1-Dow Corning 789 Weatherproofing Silicon Sealent,300 ML, Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01B55P12U |
| ASIN  | B01B55P12U |
| Brand | Dow |
| Customer Reviews | 3.7 3.7 out of 5 stars (267) |
| Customer reviews | 3.7 3.7 out of 5 stars (267) |
| Date First Available | 12 November 2022 |
| Item model number  | Dow Corning 789 |
| Product Dimensions  | 23.2 x 6.8 x 6 cm; 620 g |

## Product Details

- **Brand:** Dow
- **Item dimensions L x W x H:** 23.2 x 6.8 x 6 centimeters
- **Item weight:** 620 Grams
- **Material:** Silicone
- **UPC:** 686214309742

## Images

![Corning 789 Weatherproofing Silicon Sealent,300 ML,Black - Image 1](https://m.media-amazon.com/images/I/71EPeoTHhAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 28 April 2018*

I saw this silicone used for window sealing for high-rise buildings. I used it for my kitchen sealing, which is little way too much. Some pros and cons: - PROS: - 1. Perfect texture and easy to dispense. 2. Comes with nozzle. 3. Neutral curing, and hence no smell. 4. Excess can be wiped off with thinner. CONS: - 1. Black color, so not suitable for surfaces, which are visible. 2. Curing takes 6~7 days (entire layer).

### ⭐⭐⭐⭐ Review
*by P***K on 28 July 2019*

Item well adhere to concrete. Make sure to clean all loose debris and dry before apply. I used on roof cracks and no water leaking in continuous rain. Received with nozzle.

### ⭐⭐⭐⭐⭐ Review
*by J***H on 12 November 2019*

This is a waterproof silicone sealant, its black in colour, the surface hardened after an hour after applying and it takes more than a week to cure internally. I personally used in aluminium and glass, therefore it worked perfectly there, it also sticks to wood , other metal and plastic, but its not paintable.

## Frequently Bought Together

- DOW Silicone Corning 789 Weatherproofing Silicon Sealent,300 ML,Black, Pack of 1
- BLACK+DECKER BDHT81570 Steel Half-Open Caulking Gun-330mm (Orange)
- Dow Corning 789, White (300 ml)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-16*