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(5.0) 1318 reviews
Quantity
Hurry up! Only 29 items left in stock
1. Clean the area, removing dust, oil, rust, and moisture.
2. Apply the sealant evenly over cracks or joints (use a caulk gun for best results).
3. Let it dry; surface dries fast, full cure within 24 hours.
4. Apply a second layer for larger gaps.

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🛡️ Your joy is our priority, and we've got your back every step of the way!
• 6 hours to cancel or modify order seamlessly.
• 7 business days after delivery for a replacement or refund if deemed appropriate - no return shipping required!
• A replacement item is processed within 1-7 business days after confirmation.
• Funds back in your account within 3-5 business days after confirmation.
• We have 24/7/365 tickets and email support. Please contact us if you need further assistance.
🔎 Read more about our Return policy and Refund policy.

Having trouble choosing the right glue?
Need a solution designed to endure tension, shocks, and harsh temperature changes?
Or perhaps your repair work simply requires a high-quality product that is both easy to use and highly resistant to water and extreme temperatures?
Smooth & Easy Application
Specially designed for effortless use, the sealant extrudes finely and evenly, creating a smooth, bubble-free finish. No rough edges or air holes, ensuring a professional-quality seal every time

Excellent water resistance that creates a permanent barrier against rain and moisture

Designed for sealing construction joints, expansion joints, and perimeter sealing

Glass and wood surfaces are no challenge for this product

It works perfectly on glass, wood, and a wide variety of other materials.
Why Customers Choose It
Reliable performance for emergency leak repairs, long-term sealing, and outdoor durability.





Why Buy From Us
Tested for Quality & Performance
Every batch is inspected to ensure strong adhesion, long-term durability, and consistent waterproof protection.
Fast & Reliable Shipping
Orders are processed quickly with tracked delivery to ensure your repair materials arrive on time.
Dedicated Customer Support
Our team is ready to help with product guidance, usage instructions, and post-purchase support.
Why Buy From Us
Customer Review
▧ 5 Jakub Čern
Top produkt na trhu
Sosil 9900-1 je top produkt na trhu
Silicon Waterproof Sealant 9900
▧ 3 Kevin Janss...
Rsistant aux pluies belges
Utilis pour mes fenêtres en Belgique, resistance au vent et la pluie impeccable.
Silicon Waterproof Sealant 9900
▧ 4 Stijn Goosse...
Professionele afdichtingskit
Professioneel spul. De prijs zeker waard.
Silicon Waterproof Sealant 9900
▧ 4 Andrzej Wicik
Brak zapachu, polecam
Najlepszy silikon neutralny jaki testowałem. Brak zapachu.
Silicon Waterproof Sealant 9900
▧ 5 Jean-Pierre ...
Étanchéité irréprochable
Excellent produit. L'étanchéité de ma douche est parfaite maintenant.
Silicon Waterproof Sealant 9900
▧ 5 Sean Kelly
Great UV resistance. My skylight hasn't leaked a drop since I applied Sosil.
Silicon Waterproof Sealant 9900







