Moldable Waterproof Sealing Putty – Pipe & AC Hole Filler
Moldable Waterproof Sealing Putty – Pipe & AC Hole Filler
Moldable Waterproof Sealing Putty — Stop Leaks & Gaps Instantly
Meet your go-to fix for stubborn gaps, holes, and leaks around the home or worksite. This Moldable Waterproof Sealing Putty is a hand-shapeable compound that presses directly into place — no tools, no mess, no guesswork. Whether you're sealing around air conditioner pipe penetrations, drain connections, wall nail holes, or floor cracks, this versatile mastic compound delivers a durable, airtight, waterproof barrier fast.
Made in Mainland China.
Key Features
- Tool-Free Application: Simply press the moldable putty into any gap or hole by hand. Its pliable clay-like composition conforms to irregular surfaces, filling voids cleanly and efficiently — ideal for quick fixes in the home or on the job.
- Waterproof Barrier Formation: Once applied, the sealant cures into a resilient, moisture-blocking layer that prevents water intrusion and keeps walls, floors, and pipe surrounds dry — perfect for bathrooms, kitchens, and other high-humidity environments.
- Wide Range of Applications: Designed to close gaps around drain pipes, AC condenser lines, door and window crevices, wall nail holes, and floor cracks. Equally at home in apartments, dormitories, laundry rooms, and commercial HVAC setups.
- Noise-Dampening Properties: By sealing gaps and penetrations, this putty helps reduce unwanted sound transmission between rooms — great for shared living spaces and busy work environments.
- Improved Energy Efficiency: Airtight seals around pipes and ducting help prevent conditioned air from escaping, supporting better overall energy performance in residential and commercial settings.
- Long-Lasting Compound: Formulated for enduring use, this sealing compound maintains its integrity over time, making it a reliable solution for ongoing plumbing, HVAC, and general maintenance needs.
Specifications
| Product Name | Waterproof Sealant Mastic |
| Material | PE / Clay Compound |
| Weight | Approx. 30g |
| Dimensions | Approx. 14 × 7 × 2 cm / 5.51 × 2.76 × 0.79 in |
| Country of Origin | Mainland China |
| Package Contents | 1 × Waterproof Sealant Mastic |
Where to Use It
- Air conditioner pipe wall penetrations
- Drain pipe gaps and connections
- Wall nail holes and surface cracks
- Floor cracks and expansion gaps
- Door and window frame crevices
- Bathroom and kitchen pipe surrounds
- Laundry room and utility area sealing
For guidance on safe and effective home sealing and weatherization practices, visit the U.S. Department of Energy – Air Sealing Your Home.
Note: Due to lighting conditions and monitor settings, the product color may vary slightly from images. Minor dimensional variations may occur due to manual measurement.
Frequently Asked Questions
Q: What surfaces is this waterproof sealing putty compatible with?
A: The moldable sealing putty adheres to a wide range of common surfaces including concrete, drywall, tile, PVC pipe, and painted walls. It is ideal for use around drain pipes, AC line penetrations, window crevices, and floor cracks in both residential and commercial settings.
Q: Does the putty require any special tools or primers to apply?
A: No special tools are needed. Simply knead the putty by hand until pliable, shape it to fit the gap or hole, and press firmly into place. For best adhesion, ensure the target surface is clean and dry before application.
Q: Is this sealing compound suitable for outdoor use or high-humidity areas?
A: Yes. The waterproof sealant mastic is specifically designed to resist moisture intrusion, making it well suited for bathrooms, kitchens, laundry rooms, and outdoor pipe penetrations where exposure to water and humidity is common.
Q: How much area does one 30g piece cover?
A: Coverage depends on the size and depth of the gap being sealed. The 30g piece (approx. 14 × 7 × 2 cm) is well suited for multiple small nail holes, one medium pipe penetration gap, or several door/window crevice patches in a single application.