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★★★★★ Angela
✔ Verified buyer 7 Sep 2026
Fixed my tiny shower lead with no problems. I always buy the marine one, it's the best.
SKU: A10036
BOSTIK Marine Clear Silicone Sealant - 90ml Tube
R83,00
Incl. VAT · Bulk pricing available
144 in stock
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Unused, in original packaging
BOSTIK Marine Clear Silicone Sealant - 90ml Tube is a one-part, acetoxy-curing silicone that provides a permanent, flexible, watertight seal for building fish tanks and aquariums and for heavy-duty marine work. The compact 90ml tube suits small tanks and repair jobs.
Key Features
- Aquarium grade designed for building fish tanks and aquariums.
- Watertight seal that remains flexible and durable over time.
- Wide temperature flexibility staying flexible from -40°C to 100°C.
- UV and weather resistant against weathering, ageing and water.
- Chemical resistant and unaffected by alcohols, soap and detergents.
- Strong adhesive on non-porous surfaces needing an elastic bond.
- Compact 90ml tube ideal for smaller tanks and marine repairs.
Specifications
- Size: 90ml tube
- Type: One-part acetoxy-curing silicone sealant
- Temperature flexibility: -40°C to 100°C
- Colour: Clear
- SKU: A10036
- Barcode: 6001364100805
Typical Uses & Applications
- Building small aquariums bonding and sealing glass panels.
- Fish tank repairs resealing a leaking seam on a compact tank.
- Marine glass work sealing clear joints where discretion matters.
- Terrariums and vivariums assembling small glass enclosures.
- General waterproofing around the house on non-porous surfaces.
- Weatherproofing small exterior gaps on DIY projects.
- Gap-filling bonds where an elastic clear adhesive is needed.
Usage Tip
Ensure glass surfaces are spotless and grease-free before bonding, and allow the seal to cure fully before filling any tank with water. Being clear, it disappears into glass joints for a near-invisible finish. Does not contain a fungicide.
A trusted clear marine silicone for building and repairing tanks in a convenient tube size.
About BOSTIK
Bostik is a globally trusted adhesives and sealants brand, delivering high-quality bonding and sealing solutions relied on by trade professionals and DIYers across South Africa.
What's in the box:
1 x BOSTIK Marine Silicone Sealant Clear (90ml)
| Weight | 0.12 kg |
| SKU | A10036 |
Customer Reviews
4.8
★★★★★ 12 reviews
Bought this? Share your experience to help other shoppers.
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★★★★★ Brandon
✔ Verified buyer 11 Aug 2026
whatever I use this for it always works well. watertight strong seal when done correctly.
K
★★★★★ KL
✔ Verified buyer 19 May 2026
No comments as this product need no introduction.
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★★★★★ Wesley
✔ Verified buyer 8 Feb 2026
Great for the small jobs around the house that needs silicon, where a big tube would be wasted. Fungicide free means it’s great for aquariums and ponds.
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★★★★★ Zola
✔ Verified buyer 11 Nov 2025
This is brilliant, I'm new in this hobby so I had an accident with my small quarantine tank. Everyone told me to toss the tank and I thought let me try this silicone. My tank is running like a charm , its not runny so its easy to apply and safe for your fish. Brilliant product
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★★★★★ Jana
✔ Verified buyer 31 Oct 2025
I know this is meant for aquariums but I used it to fix a leaking pipe under my sink until I can make a more permanent fix. It works brilliantly. It was a massive leak but after three applications made over a week or so to allow the applications to cure, not a drop of water gets through. I can use the sink now.
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★★★★★ Jordyn
✔ Verified buyer 22 Aug 2025
Easy to apply, dries clear, and gives a strong waterproof seal. Perfect for small marine and household repairs. Good quality product that does the job well.
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★★★★★ Samantha
✔ Verified buyer 10 Jan 2025
keeps the rain out and you don't need to apply thick amounts
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★★★★★ Glen
✔ Verified buyer 17 Dec 2024
Bostik clear sealant is the best and easiest to use
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★★★★★ Anthea
✔ Verified buyer 15 Aug 2023
Works like a charm, don't regret buying it at all
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★★★★★ Richard
✔ Verified buyer 23 Jan 2023
Works great for fixing fish tanks.
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★★★★★ karli
✔ Verified buyer 2 Oct 2022
dries clear. good quality silicone
