Seal leaks and cracks for good. No need to replace anything.
9900 waterproof silicone sealant for car bumpers, Storex and plastic water tanks, bathroom tiles and pipes. Order now and pay only when it reaches you.
- Waterproof, flexible and weather resistant
- Holds under hot sun and heavy rain
- Pay on delivery. No online payment.
Packaging Notice
Our Structural Silicone Sealant comes in either of the two 9900 or 998 factory packaging styles shown below. The formula, volume, and bonding performance are 100% identical.
Style A
Style B
✓ Orders are dispatched randomly depending on available warehouse batches. Both guarantee the same heavy-duty result.
Pick your pack
Free delivery on every pack. You pay the delivery agent when your order arrives.
What buyers say
A real comment from a customer on our Facebook page.
Fix it yourself in minutes
Kitchen pipe: broken, then sealed with 9900.
Watch it work
What you will receive
Your sealant comes in a heavy-duty industrial nylon pack, not small retail tubes. It is the same 9900 silicone sealant, in a bigger quantity. Watch 30 seconds so you know exactly what to expect.
How to use it
- Clean and dry the surface first. Remove grease, water and dirt. For tanks and buckets, apply inside and outside.
- Wear gloves or nylon. It sticks hard to skin. If it touches you, scrub with fine sand and soap.
- Leave it 3+ hours before using or wetting it. The longer it dries, the stronger it holds.
How ordering works
- Fill the short form belowName, phone number, address and your pack.
- We call to confirmOur delivery agent calls to confirm your location.
- Receive it, then payLagos in 24hours, other states delivery within 24hrs or 4 days in rare case.
Place your order
Pay on delivery. Free shipping nationwide.
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Your details are only used to deliver your order.
Common questions
Do I pay before delivery?
No. You pay the delivery agent in cash when your order arrives.
Will it damage my car paint, tiles or tank?
No. It seals leaks without corroding or scratching plastic, glass, metal, granite, quartz, ceramic or wood.
Why must the surface be clean and dry?
The sealant needs to bond directly to the material. Dust, grease or water weakens the grip over time.
How long should I leave it to dry?
At least 3 hours untouched. It keeps getting stronger over a full day.
What if it gets on my hands?
It will not burn you, but it is hard to wash off. Wear gloves or nylon, and scrub with fine sand and soap if needed.