---
product_id: 173456695
title: "791 Silicone Sealant | Grey | 310ml | 4024909/C05"
brand: "dowsil"
price: "S$22"
currency: SGD
in_stock: true
reviews_count: 5
category: "Dowsil"
url: https://www.desertcart.sg/products/173456695-791-silicone-sealant-grey-310ml-4024909-c05
store_origin: SG
region: Singapore
---

# UV & ozone resistant Tack-free in 30 mins Adheres to 15+ materials 791 Silicone Sealant | Grey | 310ml | 4024909/C05

**Brand:** dowsil
**Price:** S$22
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, seal fast—weatherproof your world with Dowsil 791!

## Quick Answers

- **What is this?** 791 Silicone Sealant | Grey | 310ml | 4024909/C05 by dowsil
- **How much does it cost?** S$22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/173456695-791-silicone-sealant-grey-310ml-4024909-c05)

## 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

- • **Fast-Track Fixes:** Achieve a tack-free seal in just 30 minutes—no downtime, no delays.
- • **All-Weather Warrior:** Built to withstand UV rays, ozone, and extreme temperatures for lasting durability.
- • **One-Part Simplicity:** No mixing required—easy application for both commercial and domestic projects.
- • **Trusted Belgian Quality:** Crafted in Belgium with a 4.6-star rating, ensuring premium performance you can rely on.
- • **Universal Compatibility:** Seamlessly bonds with over 15 exterior substrates including metal, glass, wood, and more.

## Overview

Dowsil 791 Silicone Sealant Grey 310ml is a one-part, neutral cure silicone designed for superior adhesion and flexibility across a wide range of exterior materials. It offers rapid skinning in 20 minutes and becomes tack-free in 30, with exceptional resistance to UV, ozone, and temperature extremes, making it ideal for both commercial and domestic weatherproofing applications.

## Description

used for both commercial and domestic applications, and provides excellent adhesion to most exterior substrates. It has excellent weathering characteristics, including resistance to ozone, UV radiation and temperature extremes

Review: Sealant - excellent product exactly what was ordered highly recommend Have purchased again
Review: Did what I hoped - Used this to seal the walls of a concrete panel garage to the concrete base. Was easy to apply and filled the gaps. Quite hard to push into the gaps and then smooth as its very sticky, needs a wet finger to help a bit As proof of use - in the very heavy rain in the UK late September I had standing water outside the garage but the inside was dry so a success - would use again

## Features

- Contains Methyltrimethoxysilane. May produce an allergic reaction.
- Safety data sheet available on request.
- One part neutral weatherproofing silicone
- Provides excellent adhesion to most exterior substrates
- Highly flexible and is tack free in just 30 minutes
- Excellent weathering characteristics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XWMVKSZ |
| Best Sellers Rank | 36,285 in DIY & Tools ( See Top 100 in DIY & Tools ) 607 in Sealers |
| Brand | Dowsil |
| Colour | Grey |
| Compatible Material | Brass, Polyvinyl Chloride (PVC), Aluminum, Ceramic, Copper, Glass, Porcelain, Marble, Leather, Alloy Steel, Engineered Wood, Plastic, Stainless Steel, Vinyl, Metal, Fiberglass, Wood, Rubber |
| Country Of Origin | Belgium |
| Customer Reviews | 4.6 out of 5 stars 15 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Included Components | 791 Silicone Sealant Grey 310ml |
| Item Dimensions | 22.9 x 4.8 x 4.8 centimetres |
| Item Form | Liquid |
| Item Highlight | UV, ozone and temperature resistant with excellent adhesion; skins in 20 mins, tack-free in 45 mins |
| Item Weight | 0.45 Kilograms |
| Item dimensions L x W x H | 22.9 x 4.8 x 4.8 centimetres |
| Item weight | 0.45 Kilograms |
| Manufacturer | Dowsil |
| Manufacturer Part Number | DOW4024909 |
| Material | Silicone |
| Model Number | DOW4024909 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style | Compact |
| Style Name | Compact |
| Supported Standards | RM |
| Surface Recommendation | Roof |
| Unit Count | 1.0 count |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |

## Product Details

- **Brand:** Dowsil
- **Item dimensions L x W x H:** 22.9 x 4.8 x 4.8 centimetres
- **Item weight:** 0.45 Kilograms
- **Material:** Silicone
- **Style:** Compact

## Images

![791 Silicone Sealant | Grey | 310ml | 4024909/C05 - Image 1](https://m.media-amazon.com/images/I/41+BQZPFOLL.jpg)
![791 Silicone Sealant | Grey | 310ml | 4024909/C05 - Image 2](https://m.media-amazon.com/images/I/41uX17+UwUL.jpg)
![791 Silicone Sealant | Grey | 310ml | 4024909/C05 - Image 3](https://m.media-amazon.com/images/I/41gfuwnRELL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sealant
*by M***T on 13 July 2026*

excellent product exactly what was ordered highly recommend Have purchased again

### ⭐⭐⭐⭐ Did what I hoped
*by J***W on 28 September 2024*

Used this to seal the walls of a concrete panel garage to the concrete base. Was easy to apply and filled the gaps. Quite hard to push into the gaps and then smooth as its very sticky, needs a wet finger to help a bit As proof of use - in the very heavy rain in the UK late September I had standing water outside the garage but the inside was dry so a success - would use again

### ⭐⭐⭐⭐⭐ The best sealant to seal bait boats up with
*by A***R on 11 March 2026*

This is by far the best sealant to seal up bait boat hulls. It dries quick, easy to work with, smooths great with the help of soapy water, its not too thick so you dont have to struggle pumping it out with the gun. Nice rich dark black semi-gloss colour, blend in well with black gloss abs. Good value for money as 1 tube will do most boats that require sealing (microcat/technicat).

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.sg/products/173456695-791-silicone-sealant-grey-310ml-4024909-c05](https://www.desertcart.sg/products/173456695-791-silicone-sealant-grey-310ml-4024909-c05)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-30*