Introducing a groundbreaking solution for all your sealing and repair needs – our versatile, easy-to-use mastic sealant
Effortless Application
Our mastic sealant redefines ease of use:
- Mold it to fit any hole or gap size for a perfect repair.
- Seamlessly blends with surfaces for an invisible fix.
- Quick air-drying in about 10 minutes, saving time and effort.
- Flame retardant and waterproof for added safety and durability.
Unmatched Flexibility and Durability
Experience over 1000% elongation with our mastic sealant, ensuring it won’t crack or peel over time. Its UV stability protects against sun damage, making it a reliable choice for a variety of surfaces and environments.
Perfect for a Wide Range of Surfaces
Whether it’s flat or sloped roofs, planter boxes, foundations, sheds, basements, or various materials like metal, wood, and concrete – our mastic sealant provides a protective and enduring finish.
Eco-Friendly and Health-Conscious
Committed to your health and the environment, our sealant is made from eco-friendly materials. It’s the responsible choice for your sealing and repair needs.
The Ultimate Sealant for All Your Repair Needs
Don’t just fix it, improve it! Our mastic sealant is the perfect blend of performance, convenience, and sustainability. Ideal for both professionals and home DIY enthusiasts, it’s your go-to solution for a variety of repair and maintenance tasks. Order now and experience the ease and reliability of our premium mastic sealant!
Product Specifications
- Material: Premium quality mastic.
- Weight: 21.5g, perfect for multiple applications.
- Package Size: Compact and convenient at 133*61mm.
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
How do you ship packages?
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:
| Location | *Estimated Shipping Time |
| United States | 10-30 Business days |
| Canada, Europe | 10-30 Business days |
| Australia, New Zealand | 10-30 Business days |
| Central & South America | 15-30 Business days |
| Asia | 10-20 Business days |
| Africa | 15-45 Business days |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of Sellvia Products (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
Customer Reviews
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This product is fantastic, but I'm curious if it's safe to use around the heat pipes in my apartment. Can anyone confirm this for me?
Useful. I'll assess its durability over time. It's challenging to remove from the package, but once out, it shapes easily.
This product performs exactly as advertised. I utilized it to patch up a hole in my wall, and I plan to use it around various piping both inside and outside my house. Additionally, I reached out to the seller and received confirmation that the product can be painted over once it has fully dried.
This stuff is great.
It’s easy to mold and apply. It dries in about 30 mins I believe.
The only problem I encountered with the product was that I had to refrigerate it overnight before using it. When it's initially opened, it can be quite sticky, especially in warm weather, resembling marshmallow cream. However, when it's chilled before use, it works perfectly without any problems.
Works for my sink
I have a couple of cautions to share. Firstly, this product is noticeably lighter in weight compared to traditional clays, which means that if you're shaping a standalone item, it may not have the desired bottom-heavy balance. Secondly, it's worth noting that there are no provided instructions, so you'll need to experiment with it, just as I did. Nevertheless, overall, it's an incredibly useful product, and I'm eager to explore other applications for it.
I appreciate the convenience of these individually wrapped packets, as they prevent the need for a large tub that could dry out over time. Since I don't use this type of material frequently, it also helps save space.
Sealed the gap in the stove, I will look in the morning, it will not fall off, it means that the thing is good, then I will add the review.
This is a good alternative to standard sealant products.
I applied this using gloves and a thin spackle knife, and the putty adhered well while effectively filling the edges of my dryer vent. I'm eager to see how it holds up over time!
I used it to fill enormous holes that the plumber had left behind.
Very easy to use.
This product is different from typical plumber's putty; it has a marshmallow-like texture. It works effectively for sealing wall penetrations related to electrical and HVAC lines. It's suitable for duct sealing but not recommended for use as plumber's putty for sink drains.
It works in good and shapes good. Dries great too!
The texture of the sealant inside is reminiscent of marshmallow, and the application process involves rolling it out and wrapping it around whatever needs fixing. After I applied it to the gap in my shower, I allowed it to sit for approximately 72 hours, and it remained soft to the touch while providing a complete seal that has held up admirably.
The sealant itself exhibits remarkable resilience against wetness and moisture, which is truly impressive. The application process is straightforward; you simply open the packet and apply the material to the desired area.
This putty sealant is fantastic! I applied it to seal the gaps in my shower that used to cause leaks, and I'm thrilled to say that I no longer have any water seeping onto the floor.
I used this product to seal an area of my wall around existing pipes, and it hardened within three days.
I purchased this product to seal some small gaps in my bathroom fan and to patch up a hole in the wall. It turned out to be more "foamy" than I had anticipated; I was initially expecting something more like clay or spackle. It has a very light and somewhat unusual texture, but it does the job as advertised! I'm satisfied with its performance, and I still have plenty left for future projects.