Flash Harry DIY Waterproofing

Flash Harry DIY Waterproofing Experts in DIY Waterproofing solutions since 1975. Just Works! As part of the STT Sales Group, the brand has strong credentials in the waterproofing sector.
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Flash Harry is one of South Africa’s leading DIY waterproofing brands, incorporating a range of over thirty purpose-specific waterproofing and damp proofing related products. It was developed and is still manufactured in South Africa, and has been specifically formulated for the African market, tested to withstand the continent’s harshest weather conditions. STT Sales is one of the country’s leading manufacturers of industrial waterproofing brands, including Darachem and Bond M, with over 45 years of experience in the industry and its products have been put to the ultimate test on a wide variety of high-profile sites ranging from Soccer City, the new domestic terminal at OR Tambo and the Gautrain Sandton Station to the SA Mint (Pretoria), SA Receiver of Revenue head office (Pretoria), SA Police head office (Pretoria) and SA Breweries head office (Alrode). The roots of the Flash Harry brand were established in 1975, and today incorporates a vast (and growing) range of products covering a broad scope of DIY waterproofing and damp proofing applications. In a nutshell, if there’s a leak, there’s a Flash Harry product that can fix it. The brand is distributed nationwide, and sold through over one thousand hardware and retail stores around Southern Africa, including the Jack’s Paint Group, Mica, Buco, Build It and DIY Depot. In Gauteng alone, the brand enjoys over 60% market share and is listed with all the major local and national chains. The full range comprises:

One Shot, Fibre Flex, Liquid Plastic, Liquid Plastic+, Fix-a-Leak, Frogskin Roof Paint, Drip Stop, Bitumen Mastic, Thermoflex, Alu-Coat Silver, Hypercrete, Squeeze n' Seal, Rust Stop, Vala Inthontsi, Roof Plasters, Alu-Flash Tape, Fast Flash Tape, Carport Cure, Bitucryl Primer, Plasters Pal, Sticka Block, Wonderfill, Stitch Bonded Polyester membrane, Polyfelt and Crackgon. The Damp Doctor range – Slurry Seal, Damp Sealer, Face Brick and Masonry sealer, Grout Sealer and Injector,

as well as several leading house brands.

21/10/2025

Protect your home from leaks with Flash Harry waterproofing products, available at Hot Pot Paints Springs. From roof sealers to damp-proofing, we have everything you need to keep your property dry and damage-free.
Trust the brand that South Africans rely on for waterproofing excellence.

011 362 3071https://f.mtr.cool/kqnwcyrjaa 12th Street, Springs/admin@hotpotsprings.co.za

19/10/2025
Roof Leak? Peel, Stick and Waterproof Instantly! Fast-Flash is an instant, self-adhesive, highly flexible Waterproofing ...
16/10/2025

Roof Leak? Peel, Stick and Waterproof Instantly!

Fast-Flash is an instant, self-adhesive, highly flexible Waterproofing membrane. See just how easily it's done.

Flash Harry Fast Flash is a ready to use, highly flexible, self-adhesive roll of INSTANT waterproofing membrane suitable for all roofing details such as flas...

08/10/2025

🐸✨ Strong enough to protect your roof. Cool enough to be called Frog Skin.
Our Frog Skin Roof Paint is built tough against the elements – and it’s in stock, right here with us.

✔️ Long-lasting finish
✔️ Weather protection
✔️ Easy application

📍 Whitehouse Lighting & Electrical, Trichardt
📞 017 631 1464

And we have a winner! Congratulations to Oranje Mica Paint & Hardware Upington, who walk away with a R5000.00 product vo...
08/10/2025

And we have a winner! Congratulations to Oranje Mica Paint & Hardware Upington, who walk away with a R5000.00 product voucher for Flash Harry DIY Waterproofing products. Thank you for your support and for joining in on the fun!

08/10/2025
KEEP THE DAMP OUT!Stop lateral damp from penetrating through your walls - the right way. Our Step-by-step Youtube video ...
07/10/2025

KEEP THE DAMP OUT!
Stop lateral damp from penetrating through your walls - the right way. Our Step-by-step Youtube video shows you exactly how to do it using Flash Harry's Slurry Seal

Slurry Seal - A two component, cementitious, waterproofing slurry ideal for shower cubicles, balconies, ponds, foundation and retaining walls, for both posit...

01/10/2025

𝟱𝟬 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗧𝗿𝗶𝗲𝗱, 𝗧𝗲𝘀𝘁𝗲𝗱, 𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝗪𝗮𝘁𝗲𝗿𝗽𝗿𝗼𝗼𝗳𝗶𝗻𝗴 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. 𝗧𝗿𝘂𝘀𝘁 𝗶𝘀 𝗲𝗮𝗿𝗻𝗲𝗱. 𝗧𝗮𝗹𝗸 𝗶𝘀 𝗰𝗵𝗲𝗮𝗽. For half a century, Flash Harry has delivered Waterproofing and Damp-Proofing solutions you can trust — because

30/09/2025

Rain’s on its way, Volksrust! ☔🌧️

Don’t let leaks spoil the season – grab the Flash Harry One Shot Kit today. It’s the perfect solution to keep your roof and gutters dry and protected. Easy to apply and comes with a free membrane for extra coverage! 🏠

📍 Not sure where to start? Visit us for expert advice and friendly help! Stay dry and happy with our support.

Damp walls? Not anymore!Our latest YouTube video shows you step-by-step how to use Damp Sealer – the ultimate solution f...
29/09/2025

Damp walls? Not anymore!

Our latest YouTube video shows you step-by-step how to use Damp Sealer – the ultimate solution for preventing rising and penetrating damp in your home.



Flash Harry Damp Sealer is an interior and exterior priming coat, for the treatment of rising and penetrating damp.Damp Sealer binds the surface, leaving a s...

Celebrating Heritage Day with Flash Harry… DIY waterproofing that lasts year after year! Flash Harry, tried, tested, tru...
24/09/2025

Celebrating Heritage Day with Flash Harry… DIY waterproofing that lasts year after year!

Flash Harry, tried, tested, trusted, since 1975.

Address

6 Mission Road, Anderbolt
Boksburg
1459

Opening Hours

Monday 07:00 - 16:00
Tuesday 07:00 - 16:00
Wednesday 07:00 - 16:00
Thursday 07:00 - 16:00
Friday 07:00 - 15:00

Telephone

+27118922917

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