---
product_id: 311333893
title: "Dowsil - 791 Silicone Sealant Black 310ml"
brand: "dowsil"
price: "₱4630"
currency: PHP
in_stock: true
category: "Dowsil"
url: https://www.desertcart.ph/products/311333893-dowsil-791-silicone-sealant-black-310ml
store_origin: PH
region: Philippines
---

# 20-30 min working time Fast cure, tack free in 2 hours Superior weather & temperature resistance Dowsil - 791 Silicone Sealant Black 310ml

**Brand:** dowsil
**Price:** ₱4630
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with speed and strength—because your projects deserve the best!

## Quick Answers

- **What is this?** Dowsil - 791 Silicone Sealant Black 310ml by dowsil
- **How much does it cost?** ₱4630 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/311333893-dowsil-791-silicone-sealant-black-310ml)

## Best For

- dowsil enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Action Seal:** Get the job done faster with a quick 2-hour tack-free cure time—no waiting, no downtime.
- • **Sleek Black Finish:** Adds a clean, modern look to your exterior sealing projects, blending style with function.
- • **Universal Adhesion:** Seamlessly bonds to both porous and non-porous surfaces without primer—versatility that saves time and effort.
- • **Weatherproof Mastery:** Unmatched durability against rain, sun, and temperature swings keeps your projects flawless year-round.
- • **ISO Certified Quality:** Built to meet rigorous ISO 11600-25lm and ISO 9047 Class 50 standards for professional-grade reliability.

## Overview

Dowsil 791 is a premium black silicone sealant designed for external weatherproofing. It offers excellent adhesion without primer, resists extreme temperatures and radiation, and cures quickly within 2 hours. Certified to ISO standards, it ensures professional-grade durability and water resistance for roofing and construction applications.

## Description

Dow corning 791 external weatherproofing sealant is an external weatherproofing neutral silicone sealant. It is a one part sealant that gives excellent un-primed adhesion to both porous and non-porous construction substrates.

## Features

- Excellent weathering characteristics
- Resistance to radiation and temperature extremes
- 20-30 minutes working time
- Fast cure - tack free in 2 hours
- Confirms to ISO 11600-25lm and meets ISO specification 9047 Class 50

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0063PXFE4 |
| ASIN  | B0063PXFE4 |
| Best Sellers Rank | #40,605 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #114 in Silicone Sealers #240 in Hardware Sealers |
| Brand Name | DOWSIL |
| Color | Black |
| Compatible Material | Rubber |
| Customer Reviews | 4.4 4.4 out of 5 stars (339) |
| Customer reviews | 4.4 4.4 out of 5 stars (339) |
| Date First Available  | 28 August 2014 |
| Global Trade Identification Number | 05413278323354 |
| Included Components | 1 x tube of Dow Corning 791 in Black. |
| Item Dimensions | 50 x 50 x 235 millimeters |
| Item Form | Liquid |
| Item Type Name | External Weatherproofing Sealant |
| Item Weight | 0.37 Kilograms |
| Item model number  | 4024907/C05 |
| Manufacturer | Dow Corning |
| Manufacturer  | Dow Corning |
| Material Type | Silicone |
| Model | 4024907/C05 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 4024907/C05 |
| Product Dimensions  | 5 x 5 x 23.5 cm; 370 g |
| Style Name | Compact |
| Supported Standards | ISO 11600-25lm, ISO 9047 Class 50 |
| Surface Recommendation | Roof |
| Warranty Description | No guarentee. |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** DOWSIL
- **Item dimensions L x W x H:** 50 x 50 x 235 millimeters
- **Item weight:** 0.37 Kilograms
- **Material:** Silicone
- **Style:** Compact

## Images

![Dowsil - 791 Silicone Sealant Black 310ml - Image 1](https://m.media-amazon.com/images/I/61VglPdYFOL.jpg)

## Frequently Bought Together

- Dowsil 791 Sealant Black 310ml
- 791 Silicone Sealant Grey 310ml
- Dowsil 785N Silicone Sealant, White 310ml

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**Shop now:** [https://www.desertcart.ph/products/311333893-dowsil-791-silicone-sealant-black-310ml](https://www.desertcart.ph/products/311333893-dowsil-791-silicone-sealant-black-310ml)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-09-15*