--- product_id: 53685771 title: "785 Manhattan Grey 310C" brand: "dowsil" price: "£14.73" currency: GBP in_stock: true reviews_count: 8 category: "Dowsil" url: https://www.desertcart.co.uk/products/53685771-785-manhattan-grey-310c store_origin: GB region: United Kingdom --- # Fungicide for mould resistance ±20% joint movement flexibility Fast tack-free cure in 30 mins 785 Manhattan Grey 310C **Brand:** dowsil **Price:** £14.73 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal smart, stay protected – the future-proof choice for professionals. ## Quick Answers - **What is this?** 785 Manhattan Grey 310C by dowsil - **How much does it cost?** £14.73 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/53685771-785-manhattan-grey-310c) ## 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 Ready-to-Use:** Achieves tack-free surface in just 30 minutes, speeding up your project timeline effortlessly. - • **Flexible Joint Mastery:** Accommodates ±20% joint movement, ensuring durability and crack resistance under stress. - • **All-Weather Application:** Works seamlessly between +5°C to +40°C, perfect for diverse professional environments. - • **Bacteria-Resistant Shield:** Built-in fungicide actively fights mould, salmonella, E.coli, and MRSA for a hygienic seal. - • **Certified Quality Assurance:** Meets ISO 22196:2007 & ISO 11600-f-20lm standards for reliable, industry-grade performance. ## Overview Dowsil 785 Manhattan Grey 310C is a one-part acetoxy silicone sealant with integrated fungicide, offering fast curing and superior adhesion to non-porous surfaces. It resists harmful bacteria and mould, supports ±20% joint movement, and performs reliably across a wide temperature range, meeting key ISO standards for professional-grade sealing. ## Description A one-part bacteria resistant acetoxy silicone sealant that provides excellent adhesion to most non-porous surfaces including ceramics and porcelain. Protects against salmonella, e.Coli and mrsa. Review: Good - Perfect for my needs. Review: So flexible. Love that. - Made my bathroom joints tighter than my bank account after payday. I grabbed this Dowsil 785 in Manhattan Grey because my old sealant was basically giving water a free “back-door pass” into the walls. That old stuff was patchy, saggy, and about as reliable as my late-night DIY skills sober… which is to say: not. Once I squeezed this 785 out, the silicone lay down smooth and confident — like it knew exactly where it was meant to go. Within an hour it was tack-free, and within a day it felt like I’d welded the joint shut with silicone-grade Kevlar. It sticks to porcelain, tile, glass and other slick surfaces like it’s using industrial-grade superglue, but stays flexible so when things move a bit under weight or temperature it doesn’t crack. Handy when showers, baths, or sink units shift ever so slightly. The built-in mould and bacteria resistance feels like a bonus bodyguard against mildew, E.coli, and general damp nastiness — perfect for bathrooms, kitchens or any damp corner you don’t want turning into a fungal rave. Five stars. If sealants were judged by how smugly they repel water and dirt, this one would be strutting the job site in a suit. ## Features - Contains 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one. May produce an allergic reaction. - Safety data sheet available on request. - Use biocides safely. Always read the label and product information before use. - Contains a fungicide to resist mould growth - Fast cure - tack free in 30 minutes - Joint movement capability +/-20% - Application temperature range +5 to +40C - Conforms to ISO 22196: 2007 and ISO 11600-f-20lm ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DKY7EMK | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 31,521 in DIY & Tools ( See Top 100 in DIY & Tools ) 27 in Silicone Caulk | | Colour | Manhattan Grey | | Customer Reviews | 4.4 4.4 out of 5 stars (65) | | Date First Available | 24 Jun. 2013 | | Included Components | 1 Cartridge | | Item Package Quantity | 1 | | Item Weight | 386 g | | Item model number | 3279472/C05 | | Manufacturer | Sherwin-Williams | | Material | Silicone | | Part Number | 3279472/C05 | | Product Dimensions | 5 x 5 x 23.5 cm; 386 g | | Shape | Round | | Size | 310C | | Style | Compact | | Usage | Inside; Professional, Professional | | Voltage | 100 Volts | | Wattage | 6 watts | ## Images ![785 Manhattan Grey 310C - Image 1](https://m.media-amazon.com/images/I/61L+8zPX-NL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by M***N on 14 February 2025* Perfect for my needs. ### ⭐⭐⭐⭐⭐ So flexible. Love that. *by M***K on 28 November 2025* Made my bathroom joints tighter than my bank account after payday. I grabbed this Dowsil 785 in Manhattan Grey because my old sealant was basically giving water a free “back-door pass” into the walls. That old stuff was patchy, saggy, and about as reliable as my late-night DIY skills sober… which is to say: not. Once I squeezed this 785 out, the silicone lay down smooth and confident — like it knew exactly where it was meant to go. Within an hour it was tack-free, and within a day it felt like I’d welded the joint shut with silicone-grade Kevlar. It sticks to porcelain, tile, glass and other slick surfaces like it’s using industrial-grade superglue, but stays flexible so when things move a bit under weight or temperature it doesn’t crack. Handy when showers, baths, or sink units shift ever so slightly. The built-in mould and bacteria resistance feels like a bonus bodyguard against mildew, E.coli, and general damp nastiness — perfect for bathrooms, kitchens or any damp corner you don’t want turning into a fungal rave. Five stars. If sealants were judged by how smugly they repel water and dirt, this one would be strutting the job site in a suit. ### ⭐⭐⭐ Without nozzle. *by L***S on 23 April 2025* I know this is a top quality product but wish I’d bought from screwfix as it came without a nozzle. So if I never had one I wouldn’t be able to use it. ## Frequently Bought Together - Dowsil 785 Manhattan Grey 310C - Dowsil 785 Sanitary Sealant Clear 310 ml - Metex Silicone Block - 5 In 1 Easy Grip Sealant Shaping & Finishing Caulking Tool - Creates A Consistent Width Bead. Sharp Internal Corners With Of 6mm Or 8mm Bead - Packaging May Vary --- ## 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/53685771-785-manhattan-grey-310c](https://www.desertcart.co.uk/products/53685771-785-manhattan-grey-310c) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-05*