--- product_id: 60254816 title: "Dowsil 785N Silicone Sealant, White 310ml" brand: "dowsil" price: "£30.34" currency: GBP in_stock: true reviews_count: 10 url: https://www.desertcart.co.uk/products/60254816-dowsil-785n-silicone-sealant-white-310ml store_origin: GB region: United Kingdom --- # Fast cure time under 5 mins High elasticity & permanent flexibility Mould & mildew resistant Dowsil 785N Silicone Sealant, White 310ml **Brand:** dowsil **Price:** £30.34 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal smart, seal fast — the pro’s choice for flawless finishes! ## Quick Answers - **What is this?** Dowsil 785N Silicone Sealant, White 310ml by dowsil - **How much does it cost?** £30.34 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/60254816-dowsil-785n-silicone-sealant-white-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 - • **Speedy Seal, Zero Wait:** Fast curing formula lets you finish projects quicker without downtime. - • **Low Odour, High Comfort:** Neutral, low-odour formula keeps your workspace fresh and irritation-free. - • **Universal Compatibility:** Adheres strongly to ceramic, stone, metal, and more—no primer needed for most surfaces. - • **Built to Last, Resist the Rest:** Mould and mildew resistant for a pristine, long-lasting finish in wet environments. - • **Gentle on Surfaces, Tough on Leaks:** Neutral cure, non-corrosive to metals and safe on delicate materials like marble and granite. ## Overview DOWSIL™ 785N is a premium 310ml neutral curing silicone sealant designed for sanitary fittings and diverse surfaces including ceramic, marble, and metal. It offers fast curing within minutes, mould and mildew resistance, and permanent flexibility, making it ideal for both professional tradesmen and home projects requiring durable, low-odour sealing solutions. ## Description DOWSIL™ 785N Neutral Sanitary Silicone DOWSIL™ 785N Neutral Sanitary Silicone Sealant is a one-part, neutral curing silicone specifically designed for the sealing of sanitary fittings including baths, showers, sinks, urinals and ceramic tile joints. It is ideal for a fast turnaround on domestic and commercial sanitary projects. Benefits Neutral cure, low odour Fast cure time Mould and mildew resistant Non-corrosive to metal Conforms to ISO 11600-F&G-25LM Good unprimed adhesion on a variety of porous and non-porous substrates High elasticity - permanent flexibility Can also be used on porous surfaces such as stone, marble and granite (stain testing should be undertaken prior to application) Technical Information Where to use Interior Paintable No Sizes 310 ml Application method Sealant Gun and Cartridge Surface Preparation Ensure that surfaces to be sealed are clean, dry, sound and grease-free. Clean non-porous surfaces with DOWSIL™ R-40 Universal Cleaner or methylated spirits, and dry thoroughly with a clean, oil and lint-free cloth before application of sealant. Application Instructions Apply sealant to the desired area using a sealant gun. Once finished, the joint should be tooled within 5 minutes of application to ensure good adhesion. For an extensive list of application methods, please consult the Technical Data Sheet. Clean up Excess sealant may be cleaned off tools and non-porous surfaces whilst in an uncured state by using DOWSIL™ R-40 Universal Cleaner. If sealant is misapplied to porous substrates, it should be left until it is just cured and then removed by peeling, cutting or other mechanical means. Care should be taken not to damage plastic or coated surfaces. Review: Simply the best - Not cheap by the best there is - a joy to work with Review: Good for uPVC - Why can't we get this here any more? It seems to work well for uPVC windows, and apparently this "Neutral" type is better suited to that, compared to the plain old Dow 785 which is the "Acetoxy" (smelly!) type. Also it doesn't get up your nose like the Acetoxy ones do. My window seals always go mouldy after a few years but that's a function of their bad design (metal bridging outdoor cold and indoor warmth gives a lot of condensation). Not this stuff's fault, nothing works longer than that on my windows as far as I know. ## 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. - Proven reliable Dowsil technology - Lightweight construction at just 0.38 Kgs - High performace for the home or tradesman - Package weight: 0.46 kilograms ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BP5HDBH | | Best Sellers Rank | 102,116 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,293 in Sealers | | Brand | Dowsil | | Colour | White | | Compatible Material | Ceramic, Marble, Metal | | Container Type | Cartridge | | Customer Reviews | 4.0 out of 5 stars 103 Reviews | | Included Components | Mounting Hardware||User Manual | | Item Form | Tubular | | Item Package Quantity | 1 | | Item Volume | 310 Millilitres | | Item Weight | 310 Grams | | Item form | Tubular | | Manufacturer | Dowsil | | Manufacturer Part Number | DOW4134678 | | Material | Silicone | | Model Number | '4134678/Z02' | | Number of Pieces | 1 | | Other Special Features of the Product | Fast Curing, Low Odour | | Special feature | Fast Curing, Low Odour | | Specific Uses For Product | Bathroom and Kitchen Fixtures, Ceramic Tiles, Stone, Marble | | Specific uses for product | Bathroom and Kitchen Fixtures, Ceramic Tiles, Stone, Marble | | Unit Count | 310.0 millilitre | | Viscosity Level | Medium to High | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Dowsil - **Item form:** Tubular - **Material:** Silicone - **Special feature:** Fast Curing, Low Odour - **Specific uses for product:** Bathroom and Kitchen Fixtures, Ceramic Tiles, Stone, Marble ## Images ![Dowsil 785N Silicone Sealant, White 310ml - Image 1](https://m.media-amazon.com/images/I/51UncCkA7dL.jpg) ![Dowsil 785N Silicone Sealant, White 310ml - Image 2](https://m.media-amazon.com/images/I/61DMK80h+CL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simply the best *by A***T on 11 March 2026* Not cheap by the best there is - a joy to work with ### ⭐⭐⭐⭐⭐ Good for uPVC *by S***E on 23 June 2022* Why can't we get this here any more? It seems to work well for uPVC windows, and apparently this "Neutral" type is better suited to that, compared to the plain old Dow 785 which is the "Acetoxy" (smelly!) type. Also it doesn't get up your nose like the Acetoxy ones do. My window seals always go mouldy after a few years but that's a function of their bad design (metal bridging outdoor cold and indoor warmth gives a lot of condensation). Not this stuff's fault, nothing works longer than that on my windows as far as I know. ### ⭐⭐⭐⭐ silicone for your diy jobs *by M***N on 28 October 2025* As described no issues. ## Frequently Bought Together - Dowsil 785N Silicone Sealant, White 310ml - Bed-IT Tape, Butyl, for Marine Deck and RV Hardware (50 Foot Roll x 1/2" Wide) - 3M Marine Adhesive Sealant 4000 UV (05280), Medium Strength Flexible Waterproof Adhesive Sealant for Boats and RVs, UV Resistant, Cures in 24 Hours, White, 3 fl oz Tube --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/60254816-dowsil-785n-silicone-sealant-white-310ml](https://www.desertcart.co.uk/products/60254816-dowsil-785n-silicone-sealant-white-310ml) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-03*