---
product_id: 34217874
title: "Dow Corning 791 Silicone Weatherproofing Sealant Cartridge - Black-L8"
brand: "bio-md"
price: "฿648"
currency: THB
in_stock: false
reviews_count: 1
url: https://www.desertcart.co.th/products/34217874-dow-corning-791-silicone-weatherproofing-sealant-cartridge-black-l8
store_origin: TH
region: Thailand
---

# Dow Corning 791 Silicone Weatherproofing Sealant Cartridge - Black-L8

**Brand:** bio-md
**Price:** ฿648
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Dow Corning 791 Silicone Weatherproofing Sealant Cartridge - Black-L8 by bio-md
- **How much does it cost?** ฿648 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/34217874-dow-corning-791-silicone-weatherproofing-sealant-cartridge-black-l8)

## Best For

- bio-md enthusiasts

## Why This Product

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

## Description

One of the most economical options for quality silicone weathersealing, DOWSIL 791 Silicone Weatherproofing Sealant is a neutral-cure, one-part sealant that quickly cures to a durable, flexible seal that can accommodate significant joint movement. Especially suited for perimeter sealing around doors and windows, it's also excellent for sealing expansion and control joints, precast concrete panels, curtainwall and mullion joints, and internal seals and end dams.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Bio-MD |
| Liquid Volume | 10 Fluid Ounces |
| Full Cure Time | 24 Hours |
| Item Form | Liquid |
| Surface Recommendation | Door, Window |
| Water Resistance Level | Waterproof |
| Number of Items | 1 |
| Manufacturer | Dow Corning |
| Unit Count | 1.0 Count |
| Material | Silicone |
| Package Dimensions | 11.1 x 1.93 x 1.89 inches |
| Item Weight | 1.1 pounds |
| ASIN | B01BWTYE9K |
| Item model number | 791 |
| Is Discontinued By Manufacturer | No |
| Date First Available | May 6, 2019 |

## Product Details

- **Brand:** Bio-MD
- **Liquid Volume:** 10 Fluid Ounces
- **Full Cure Time:** 24 Hours
- **Item Form:** Liquid
- **Surface Recommendation:** Door, Window

## Images

![Dow Corning 791 Silicone Weatherproofing Sealant Cartridge - Black-L8 - Image 1](https://m.media-amazon.com/images/I/012urTYGPKL.jpg)
![Dow Corning 791 Silicone Weatherproofing Sealant Cartridge - Black-L8 - Image 2](https://m.media-amazon.com/images/I/012urTYGPKL.jpg)

## Questions & Answers

**Q: Is this acid free?**
A: I believe it is

**Q: Can this be used to seal the window of a boat hatch?**
A: I'm not sure what you mean by Seal but my windows are actually held on my boat without any screws using 3M VHB tape and then 791 around the whole window just like caulking a bathtub but you have to do it really nice

**Q: is this suitable for mortar joints?**
A: This product can be used on masonry and both porous and non-porous substrates.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Waterproofing
*by B***N on May 29, 2020*

This product is awesome for horse trailer roofs, RV, etc. Wish seller would sell white or gray colored product on Amazon in addition to black.

## Frequently Bought Together

- Dow Corning 791 Silicone Weatherproofing Sealant Cartridge - Black-L8
- 6" x 9" 3M 07447 Scotch-Brite Maroon General Purpose Hand Pads (1-Pack of 20 Pads)
- DYKEM Cross Check Torque Seal Tamper-Proof Indicator ($8.22 each when ordering 25 or more)

---

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**Shop now:** [https://www.desertcart.co.th/products/34217874-dow-corning-791-silicone-weatherproofing-sealant-cartridge-black-l8](https://www.desertcart.co.th/products/34217874-dow-corning-791-silicone-weatherproofing-sealant-cartridge-black-l8)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-22*