ExtremeSeal™ Sealant Clay
ExtremeSeal™ Sealant Clay
Seal ugly openings around pipes, AC lines, drain hoses and wall penetrations in minutes—without expensive repairs or messy tools.
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ExtremeSeal™ Sealant Clay
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I finally sealed the gap around my AC line without using messy foam or caulk. Looks much cleaner and took less than five minutes.
Technical Specs
Technical Specs
Pack Size: 6 Individual Packs
Net Weight: 0.71 oz (20g) Per Pack
Total Weight: 4.23 oz (120g) Total
Water Resistance: Waterproof
Material: Sealant Clay
Color: White
Compatible Surfaces: Wood, Metal, Plastic & Concrete
Technology: ExtremeSeal™ Technology
Recommended Applications: Wall Holes, Pipe Openings, AC Line Gaps, Utility Penetrations & Household Repairs
How to use
How to use
Step 1: Clean the surface and remove any loose debris.
Step 2: Shape the Sealant Clay by hand and press it firmly into the gap or opening.
Step 3: Smooth the surface for a clean finish and allow it to cure for 3–5 days.
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Homeowner Friendly
No Tools Required
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Fast Application
Apply In Minutes
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Indoor & Outdoor Use
Built For Everyday Repairs
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Long-Lasting Protection
Durable After Curing
Powered By ExtremeSeal™ Technology
Most sealants simply fill the gap.
ExtremeSeal™ Technology is designed to mold deeply into irregular openings, helping create a stronger bond and a cleaner finish as it cures.
Whether you’re sealing around pipes, wall openings, utility penetrations, or hard-to-reach gaps, it adapts to the surface for reliable long-term protection.
✓ Conforms To Irregular Shapes
✓ Helps Reduce Air & Moisture Infiltration
✓ Creates A Cleaner Finished Appearance
✓ Designed For Long-Term Protection
Easy Application
Seal Any Gap In Minutes. No Special Tools Required.
Step 1: Shape The Putty
Mold the clay to fit the size and shape of the opening.
Step 2: Press & Smooth
Apply directly into the gap and smooth the surface by hand.
Step 3: Let It Cure
The seal gradually hardens within 3–5 days for lasting protection.
Why Choose ExtremeSeal™ Sealant Clay?
More Flexible During Application. More Durable After Curing.
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Others | |
|---|---|---|
| Powered by exclusive ExtremeSeal™ technology | ||
| Easy To Shape | ||
| Fits Irregular Gaps | ||
| No Special Tools Required | ||
| Clean Professional Finish | ||
| Indoor & Outdoor Use |
What Our Customers Are Saying
Our customer advocates are standing by 24/7 to support you via email
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I installed a new Broan bathroom fan/light, I had a small gap around the entire perimeter allowing blown insulation to drop down making a mess! What do I do? I find this sealant moldable clay. Wow, my problem is OVER. This is absolutely the best thing since sliced bread! Highly recommend people!
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Much easier to work with than plumber’s putty. It molds into irregular gaps easily and creates a clean, professional-looking seal around pipes and wall openings.
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Perfect for odd-shaped gaps that regular fillers can’t handle. I was able to mold it exactly where I needed it.
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The clay stayed soft while I worked with it and hardened nicely after a few days. The finished result looks great.
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I used it to seal a septic cap where I needed a removable solution. It was easy to apply, held up well through rain and freezing temperatures, and still remained flexible after a week. Very pleased with the results.
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This product is absolutely amazing!easy to use, not sticky and dries well! I’ve used it for several different applications and love it so much I’m buying more to keep on hand!! A++++
Money-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
Frequently Asked Questions
What’s included in each pack?
What’s included in each pack?
Each order includes 6 individual packs of Sealant Clay. Each pack contains 20g (0.71 oz) of material, giving you enough coverage for multiple repairs around your home.
What can I use ExtreamSeal™ Sealant Clay for?
What can I use ExtreamSeal™ Sealant Clay for?
It’s ideal for sealing wall holes, pipe openings, AC line gaps, utility penetrations, plumbing gaps, and other common household openings where a durable seal is needed.
Is it easy to apply?
Is it easy to apply?
Yes. Simply mold the clay by hand, press it into the gap, and smooth the surface. No special tools or mixing are required.
How long can I store unused Sealant Clay?
How long can I store unused Sealant Clay?
When kept sealed in its original packaging and stored in a cool, dry place, ExtremeSeal™ Sealant Clay has a shelf life of up to 12 months.
How long does it take to cure?
How long does it take to cure?
The clay remains flexible during application and gradually cures into a durable seal within 3–5 days, depending on temperature and conditions.
Can I return it if it doesn’t work?
Can I return it if it doesn’t work?
You can shop with peace of mind, in fact we’re so confident you’ll love our products that if not, we'll offer you a 30 day money back guarantee.
If you’re unhappy with your Extreme Tape™ purchase, please email us at service@extremetape.co