







Product description


High Resilience Wedge Seal Strip – Black Foam Window Weather Stripping 

1 Good Craft
2 Upgraded Glue
3 No Glue Residue Spillage
4 Good Rebound
5 Upgraded Black Foam
WHY CHOOSE US?
How well does this actually block light and drafts?
Our upgraded wedge design uses deep black, high-density foam that compresses to seamlessly fill gaps from 0.16″ to 0.38″. This seal against both light and drafts, ensuring minimal light leakage and maximum draft exclusion.
Will this affect how my door or window opens/closes?
Not at all. The internal high-elasticity PU foam is dense yet resilient – it compresses easily when the door/window closes and springs back perfectly without deformation. It seals gaps effectively without creating resistance or friction.
Is the adhesive strong enough? Will it fall off?
Our seal features a one-piece grid-pattern adhesive backing, this design provides maximum surface contact and adhesion. For best results, especially in cold weather, briefly warm the adhesive with a hairdryer before application.
Where can I use this seal? What materials does it work on?
Its versatile wedge shape works on virtually any gap! Use it on: Windows: Sliding, casement, hung. Doors: Sliding, French, exterior, interior, front, closet, cabinet. Adheres effectively and seals gaps on wood, plastic, PVC, and metal surfaces.
How does the “upgraded wedge design” help?
The wedge shape is key to its versatility. You can adjust the installation angle to target the gap you need to fill. This allows it to conform effectively to varying gap widths within its 0.16″-0.38″ range, ensuring an optimal seal every time.
Upgraded Black Foam Wedge Design: This door weatherstripping features an upgraded wedge design that allows you to adjust the installation angle as needed. The deep black foam delivers superior light-blocking for doors and windows, seamlessly filling gaps from 5/32″ to 11/32″ (4–9mm). Suitable for a variety of gap sizes
Nylon Cloth&PU Foam: Our door sealer outside the use of high tenacity nylon cloth, waterproof and scratch-resistant, doors and windows in the process of switching more silky smooth and not easy to be scratched.The internal by high elasticity of the PU foam, made of dense and delicate materials such as cream, randomly extruded and not deformed, not only achieves a good sealing effect, but also will not affect the opening and closing of the doors and windows
Widely Used: This door weatherproofing wedge-design of the door space filler can be used in a variety of places in life (sliding windows, casement windows, suspended windows, sliding doors, french doors, exterior doors, interior doors, front doors, cabinets, closets, bathroom cabinets, refrigerators, drawers, etc.), suitable for all kinds of material doors and windows (wood, glass, plastic, metal, etc.)
Grid Adhesive Backing Design: The window inserts use a one-piece grid adhesive backing design, which is more adhesive than the general seal adhesive backing, and will not fall off easily during the use process, ensuring long-lasting use
Multi-Functional: Using our door sound proofing can perfectly realize warmth in winter and coolness in summer, and save energy. At the same time, there are sound insulation, anti-collision, shading, dustproof, and other effects, make life more comfortable. Please note: When the weather is cold, it is recommended to use a hair dryer to heat the backing to enhance the adhesion
NOTE: The door sealing strip exhibits highly noticeable wrinkles after packaging due to the nature of the Foam used in its construction. Although the crease would not have any effect on your ability to seal. If you have any inquiries, don’t hesitate to get in touch with customer service
8 reviews for Kneelisa Wedge-Shape Window Weather Stripping Door Frame Seal Strip 118” White,Upgrade Black Foam,Soundproofing,Draft Stopper,Winter Insulation,Noise Blocker, Gap Filler for Exterior Front Door Side
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$8.99
Angie –
Easy to install and works great for drafts
This weather stripping worked exactly as expected and was very easy to install. The adhesive backing is strong, and it stuck well to the door frame after cleaning the surface. The foam is flexible but still dense enough to seal small gaps effectively.After installing it around my exterior door, I immediately noticed less air coming through and the door closes more snugly. It also helps reduce outside noise a bit, which is a nice bonus. The wedge shape makes it good for uneven gaps where standard flat seals don’t work as well.There’s plenty of length in the roll, so it’s easy to cut to the size you need and still have some left for other doors or windows. Overall, this is a simple and affordable way to improve insulation and stop drafts. Very satisfied with the purchase.
BA –
No More Cold Drafts
Live in an apartment with an older very drafty balcony door. Have tried all types of door insulations. None worked.Either they did not stay in place or gap was too wide for the products to handle. This one works perfectly for my situation. Only issue I had was getting the door to close at first. Had to really slam until the insulation compressed after a few times. I think my installation was the problem. It lasted all winter, but I removed in the summer months, because I installed incorrectly. It was too visible with door open. This winter 2025/ 2026 I reinstalled correctly, and works perfectly. It also adheres very well. Door is opened and closed daily. It is worth every penny for me.
Sassy –
Perfect for the gap in older French doors and for older houses.
We used this on my daughter’s French doors which had a huge gap where they met. Cleaning pads work great to prepare surface and once dry these go down great. A little tough to close door at first but after a few closes, gets better and really keeps the draft out and the room warmer. I bought the larger kit so we did the front door, as well. Really tough to close at first but conforms and becomes easier and really stops the draft!
Somebody –
The wdge shape is much better than other styles of weather strips
Worked perfectly for a gap I needed to close in a window. Very easy to work with. Easy to cut to size.
Katie W –
Good quality for weatherproofing.
Easy to apply. Sticks well and stays in place. Good quality. Definitely noticed a difference after upgrading material to heating/cooling/deafrs.
Suleiman S. –
Good but not prefect
It doesn’t completely blind the wind, still has some gap to bring the blowing in.
Dr. A. Cobb – Wellness Expert –
Flexible, discreet, and ideal for sealing those stubborn little spaces.
I used this wedge-shape seal on a sliding screen door, not a window, and it worked exactly the way I hoped. My screen had a narrow quarter-inch gap along the frame – just wide enough to let dust, drafts, and pests slip in — and this strip filled it perfectly. The foam compresses smoothly, the adhesive holds tight, and the seal doesn’t interfere with the sliding function at all.What I appreciate most is how cleanly it blends into the frame. It gives the screen a more finished, secure feel without altering its movement or appearance. Installation was simple: cut to length, peel, and press.I also use similar weather-sealing materials in my treatment rooms to eliminate small gaps and create a more insulated, calming atmosphere for patients. Even subtle improvements like this help reduce outside noise and prevent environmental disruptions, contributing to a more grounded and restorative experience.For sealing tiny intrusion gaps on sliders or creating a more controlled, peaceful space – this strip is a surprisingly effective solution.
Rosita Velazquez Sargento –
Worth the price
Gets the job done and easy install