Your Cart


All orders are processed in USD. While the content of your cart is currently displayed in CYN, you will checkout using USD at the most current exchange rate.

Out of stock

Some items are no longer available. Your cart has been updated.

Have a Coupon code?
Coupon code applied will be stored on your account

This discount code cannot be used in conjunction with other promotional or discounted offer.

Taxes and shipping calculated at checkout
Enjoy Free Express Shipping on orders over $39.9

🔥BIG SALE - 49% OFF🔥New Type Waterproof Sealant Mastic 52386945

Sale price USD $5.65 Regular price USD $11.08

Qty. 1 PC

  • 1 PC
  • BUY 4 Get 3 FREE
  • 🔥BUY 5 GET 5 FREE
  • 👍BUY 6 GET 8 FREE(Best Seller)

Order summary

🔥BIG SALE - 49% OFF🔥New Type Waterproof Sealant Mastic
Have a Coupon code?
Coupon code applied will be stored on your account

Shipping calculated at checkout.


Buy With


Size: 120*62mm

Material: Foam powder, PVA

Instructions for use
Unpacking can be used. First clean the gap that needs to be sealed to ensure that there is no dust, water, debris and other debris, and then stuff with mastic to the gap 3-5 cm, the surface can be smoothed with hands or tools. Repeat the above operation after 3 to 5 days as gaps may appear at the shrinkage edges.
Easy to use, save money on maintenance!


🌍1.The clay can be reshaped according to the size of the holes/slits
🌍2.The clay can be perfectly blended with the surface.
🌍3. It only takes 3-5 days to air dry. It is flame retardant and waterproof.

HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product


PROTECTIVE FINISH FOR - Flat roofs, metal roofs, sloped roofs, planter boxes, foundations, sheds, basements, metal, wood, concrete and more

🌍Environmental protection materials, care for your health🌍


Q:Can this be used to seal around a heating pipe, or can you recommend something else?

A: Yes. It expands to fill holes, cracks, gaps and voids around windows, doors, pipes, outlets, vents.
🎁It's a perfect gift for your family & friend!

View Full Details
Sign in
If you do not have an account, click Create AccountCreate Account