Rubber Window Water Blocking Bar – Waterproof Sealing Strip

$43.70 $59.26

Color 3M-35mm 3M-45mm Outer Window-55mm Slot width 18mm Slot width 23mm Slot 15-20-25mm Outer Window-45mm

Keep Rain & Water Out with a Durable Rubber Window Sealing Bar

Stop water from creeping in through your window edges with this heavy-duty Rubber Window Water Blocking Bar. Designed to create a firm, watertight seal along window sills and frames, this flexible rubber sealing strip acts as a reliable barrier against rainwater backflow, splashing, and windblown moisture. Whether you're protecting a balcony window, sliding door, or exterior frame, this strip installs quickly and holds securely.

Made in Mainland China.

Why You'll Love This Window Sealing Strip

Waterproof Rubber Construction – Made from durable, flexible rubber that resists water, UV exposure, and everyday wear.
Multiple Size Options – Available in 0.5M and 3M lengths with varying widths to fit different window frames and sill slots.
Easy to Install – No special tools required; simply slot or press into position along the window edge.
Neat Black Finish – The classic black color blends cleanly with most window frames and sills.
Flexible Fit – Slot widths of 18mm, 23mm, and 15–25mm accommodate a wide range of window profiles.

Specifications

Material: Rubber
Color: Black
Length Options: 0.5M / 3M
0.5M Outer Window Widths: 45mm (1.77in), 55mm (2.17in)
0.5M Slot Widths: 18mm (0.71in), 23mm (0.91in), 15–25mm (0.59–0.98in)
3M Widths: 35mm (1.38in), 45mm (1.77in)
Package Includes: 1 × 50cm (19.69in) Window Water Blocking Bar

Where to Use It

This sealing strip is ideal for:

Exterior and balcony windows
Sliding glass doors and frames
Window sill edges prone to water pooling
Any gap where wind-driven rain can enter

Important Notes

Please allow 1–3cm (0.39–1.18in) tolerance due to manual measurement.
Monitor color settings may affect the appearance of the product color in photos.

Frequently Asked Questions

Q: What sizes does the rubber window water blocking bar come in?

A: The sealing strip is available in 0.5M and 3M lengths. The 0.5M version comes with outer window widths of 45mm and 55mm, and slot widths of 18mm, 23mm, or 15–25mm. The 3M version is available in 35mm and 45mm widths. Be sure to measure your window sill or frame slot before ordering to select the best fit.

Q: Is the window sealing strip easy to install without professional help?

A: Yes! The rubber sealing bar is designed for simple DIY installation. It slots into the window frame edge or sill groove without the need for adhesives or special tools in most applications. Its flexible rubber material allows you to press it firmly into position for a snug, waterproof fit.

Q: Will this sealing strip work on sliding doors as well as windows?

A: Absolutely. The water blocking bar is versatile enough for use on window sills, exterior window frames, balcony windows, and sliding glass door tracks — anywhere you need to prevent water ingress or backflow along a frame edge.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.