---
product_id: 75832430
title: "Dowsil 799 Plastic And Glass Sealant - White 310ml"
brand: "redify"
price: "$96.35"
currency: USD
in_stock: true
reviews_count: 5
category: "Redify"
url: https://www.desertcart.ec/products/75832430-dowsil-799-plastic-and-glass-sealant-white-310ml
store_origin: EC
region: Ecuador
---

# Fast curing formula Strong adhesion to plastics & glass Superior weather resistance Dowsil 799 Plastic And Glass Sealant - White 310ml

**Brand:** redify
**Price:** $96.35
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, last long — the pro’s choice for flawless finishes!

## Quick Answers

- **What is this?** Dowsil 799 Plastic And Glass Sealant - White 310ml by redify
- **How much does it cost?** $96.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/75832430-dowsil-799-plastic-and-glass-sealant-white-310ml)

## Best For

- redify enthusiasts

## Why This Product

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

## Key Features

- • **Seal with Confidence:** Neutral silicone that won’t corrode metals or react with substrates
- • **ISO Certified Quality:** Meets ISO 11600-f&g-25lm standards for reliable performance
- • **Versatile Bonding Power:** Adheres flawlessly to both porous and non-porous surfaces including polycarbonate
- • **Weatherproof Your Projects:** Outstanding durability against rain, sun, and temperature shifts
- • **Smooth, Professional Finish:** Easy to apply with clean edges and no overpowering odors

## Overview

Dowsil 799 is a premium white neutral silicone sealant designed for plastic and glass applications. It offers fast curing, excellent adhesion to diverse surfaces including polycarbonate, and superior weather resistance. Ideal for glazing and curtain walling, it ensures mold resistance and a smooth, odor-minimized application. Certified to ISO 11600-f&g-25lm, it’s trusted by professionals seeking durable, clean, and reliable sealing solutions.

## Description

Dow Corning 799 plastic and glass sealant is a mould resistant External weatherproofing neutral silicone sealant. It is a one part sealant for use in glazing and curtain walling applications. It has excellent adhesion to both porous and non-porous substrates.

Review: Best quality of silicone I've used - This is genuinely really good stuff. I used it to seal copper to painted wood and it worked perfectly. lovely smooth edges, no strong odours (compared to some other ones I've used) and as it's neautral it doesn't react with the bare metal so perfect for this application. really happy I found this one, and got plenty left for another job.
Review: Out of date - The silicone sent was out of date. Not terrible. But expensive for it to be out of date.

## Features

- Contains sensitizing substances. May produce an allergic reaction.
- Safety data sheet available on request.
- Use biocides safely. Always read the label and product information before use.
- Excellent weathering characteristics
- Excellent Adhesion to polycarbonate
- Fast cure
- Conforms to ISO 11600-f&g-25lm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DL18J2G |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 243,681 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,432 in Sealers |
| Colour | White |
| Customer Reviews | 3.6 3.6 out of 5 stars (13) |
| Date First Available | 24 Jun. 2013 |
| Included Components | 1 x tube of Dow Corning 799 in white. |
| Item Package Quantity | 1 |
| Item Weight | 370 g |
| Item model number | 4068772/C05 |
| Manufacturer | Dow Corning |
| Material | Silicone |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | 4068772/C05 |
| Product Dimensions | 5 x 5 x 23.5 cm; 370 g |
| Size | size 310 |
| Style | Compact |

## Product Details

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

## Images

![Dowsil 799 Plastic And Glass Sealant - White 310ml - Image 1](https://m.media-amazon.com/images/I/3160ohOb9UL.jpg)
![Dowsil 799 Plastic And Glass Sealant - White 310ml - Image 2](https://m.media-amazon.com/images/I/31WJ3-ZSUeL.jpg)
![Dowsil 799 Plastic And Glass Sealant - White 310ml - Image 3](https://m.media-amazon.com/images/I/41WIHpb-isL.jpg)
![Dowsil 799 Plastic And Glass Sealant - White 310ml - Image 4](https://m.media-amazon.com/images/I/51L5Q7xqHEL.jpg)
![Dowsil 799 Plastic And Glass Sealant - White 310ml - Image 5](https://m.media-amazon.com/images/I/61irOntKtgL.jpg)

## Questions & Answers

**Q: I have a small crack in polycarbonate sheet will this be ok  to use.**
A: It will depend on the position of the crack and the use of the polycarbonate sheet. Generally the Dowsil with seal a small crack if the poly is not flexed constantly. It will also depend on the degradation of the plastic. BUT it is one of the better sealants to use for small or large gap filling.

**Q: Thank you for the previous answers. Which is better white or clear? Should i take out old seal or put it on top of old seal?**
A: Colour depends on what works best, but we do sell more clear if that helps.  Take out old seal first.

**Q: what is the work time and skin time of Dowsil 799 clear sealant**
A: Both will depend on the weather being used in and whether it is in direct sunlight. Generally work time should be limited to under 3 minutes with skin time beginning at around 8 mins

**Q: Can I use this to seal my glass conservatory roof externally, and what extremes of temperature can it withstand?**
A: Hi there - this is the answer from the technical team:-  Generally speaking, yes, it can be used in this application. DC 799 is temperature resistant up to 120°C and so I would not expect it to fail, however, bear in mind that the sealant joint will need to be large enough to accommodate movement, including thermal movement. DC 799 has a +/-25% movement accommodation factor.   Kind regards, Lisa @ Stickwithus

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best quality of silicone I've used
*by M***Y on 25 July 2021*

This is genuinely really good stuff. I used it to seal copper to painted wood and it worked perfectly. lovely smooth edges, no strong odours (compared to some other ones I've used) and as it's neautral it doesn't react with the bare metal so perfect for this application. really happy I found this one, and got plenty left for another job.

### ⭐⭐ Out of date
*by F***N on 15 May 2023*

The silicone sent was out of date. Not terrible. But expensive for it to be out of date.

### ⭐⭐⭐⭐⭐ Doesn’t go black
*by L***E on 5 October 2022*

Usually sealant goes black in my bathroom this been in for a year and still looks new

## Frequently Bought Together

- Dowsil 799 Plastic And Glass Sealant - White 310ml
- Dowsil 785N Silicone Sealant, White 310ml

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-22*