---
product_id: 78026769
title: "Corning 789 Weatherproofing Silicone Sealent, 300 ML, Black, pack of 1"
brand: "dow"
price: "₱1478"
currency: PHP
in_stock: true
url: https://www.desertcart.ph/products/78026769-corning-789-weatherproofing-silicone-sealent-300-ml-black-pack-1
store_origin: PH
region: Philippines
---

# 100% Waterproof Seal Sleek Black Finish Versatile for Interior & Exterior Corning 789 Weatherproofing Silicone Sealent, 300 ML, Black, pack of 1

**Brand:** dow
**Price:** ₱1478
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal the Future with Confidence — Don’t Let Leaks Define Your Space!

## Quick Answers

- **What is this?** Corning 789 Weatherproofing Silicone Sealent, 300 ML, Black, pack of 1 by dow
- **How much does it cost?** ₱1478 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/78026769-corning-789-weatherproofing-silicone-sealent-300-ml-black-pack-1)

## 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

- • **Built for Durability:** Silicone-based resilience that withstands harsh climates without cracking or peeling.
- • **Sleek Black Aesthetic:** Blends perfectly with modern architectural elements for a clean, professional finish.
- • **Ultimate Weatherproofing Power:** Dow Corning 789 delivers industry-trusted, long-lasting protection against water and weather.
- • **Seamless Application, Every Time:** Compact gel formula ensures smooth, mess-free sealing on windows, doors, and building joints.
- • **Professional Grade, Trusted Brand:** Manufactured by Dow Corning Korea, a global leader in sealants and coatings.

## Overview

Dow Corning 789 Weatherproofing Silicone Sealant is a premium 300 ML black gel sealant designed for both interior and exterior use. Waterproof and highly durable, it provides a professional-grade solution for sealing windows, doors, and building joints, ensuring long-lasting protection against weather elements. Compact and easy to apply, it’s the go-to choice for millennial professionals seeking reliable, sleek, and efficient weatherproofing.

## Description

Dow Corning 789 Weatherproofing Silicone Sealent, 300 ML, Black, pack of 1

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Silicone |
| Brand | DOW |
| Style | Compact |
| Item Weight | 620 Grams |
| Item dimensions L x W x H | 23.2 x 6.8 x 6 Centimeters |
| Water Resistance Level | Waterproof |
| Item Form | Gel |
| UPC | 686214309742 |
| Net Quantity | 1 Count |
| Number of Items | 1 |
| Colour | Black |
| Surface Recommendation | Window, Door, Building Joints |
| Manufacturer | Dow Corning Korea |
| Model number | Dow Corning 789 |
| Specific Product Use | Interior/Exterior |
| Item Weight | 620 g |
| Product Dimensions | 23.2 x 6.8 x 6 cm; 620 g |
| Item model number | Dow Corning 789 |
| Item Height | 6 Centimeters |
| Item Width | 6.8 Centimeters |
| Included Components | 1 |

## Product Details

- **Material:** Silicone
- **Brand:** DOW
- **Style:** Compact
- **Item Weight:** 620 Grams
- **Item dimensions L x W x H:** 23.2 x 6.8 x 6 Centimeters

## Images

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

## Questions & Answers

**Q: can i use this to build a fish tank?**
A: Yes you can

**Q: Can i use it to fix leaks/gap around waterline, pipe ?**
A: No

**Q: Can it be used for tin roof leakage?**
A: Yes, it can be used for tin roof leakage. For best results, ensure that a 6mm thickness of sealant is applied. Also ensure, while applying surfaces are clean, dry and free from oil/grease.

**Q: Can it be used on to seal space between wooden frame and cement or concrete.**
A: No it is only used for fix ACP Sheets

## 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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**Shop now:** [https://www.desertcart.ph/products/78026769-corning-789-weatherproofing-silicone-sealent-300-ml-black-pack-1](https://www.desertcart.ph/products/78026769-corning-789-weatherproofing-silicone-sealent-300-ml-black-pack-1)

---

*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-24*