Rubber Window Waterproof Sealing Strip | Water Blocking Bar

Rubber Window Water Blocking Bar – Waterproof Sealing Strip

Keep rain and window condensation where it belongs — outside. This heavy-duty rubber window waterproof sealing strip creates a reliable barrier along window edges and sills, preventing water backflow and moisture ingress into your home. Whether you're dealing with heavy rain, splashing, or condensation run-off, this flexible rubber baffle forms a tight, secure seal to protect your sills, walls, and floors.

Made in Mainland China.

Key Features

• Premium Rubber Material: Flexible, durable, and resilient — maintains a firm seal over time without cracking or warping.
• Multiple Size Options: Available in 0.5M and 3M lengths, with a range of widths to suit different window frames and sill profiles.
• Easy to Fit: Designed to slot directly into standard window grooves — no tools or adhesives required for most applications.
• Effective Water Barrier: The raised baffle edge redirects and blocks water backflow, keeping interiors dry and protected.
• Discreet Black Finish: Blends seamlessly with most window frames and does not detract from your window's appearance.
• Versatile Application: Suitable for sliding windows, casement windows, and other standard window types in homes, offices, and apartments.

Specifications

• Material: Rubber
• Color: Black
• Length Options: 0.5M | 3M
• Width Options (0.5M): Outer Window 45mm (1.77in) | Outer Window 55mm (2.17in) | Slot Width 18mm (0.71in) | Slot Width 23mm (0.91in) | Slot 15/20/25mm (0.59/0.79/0.98in)
• Width Options (3M): 35mm (1.38in) | 45mm (1.77in)
• Package Includes: 1 x Window Water Blocking Bar (50cm / 19.69in per piece for 0.5M option)

Please allow 1–3cm measurement tolerance due to manual sizing. Monitor color settings may cause slight color variation from actual product.

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Frequently Asked Questions

Q: What window types is the rubber water blocking bar compatible with?

A: The rubber window waterproof sealing strip is designed to work with most standard sliding and casement window frames. Simply select the width option that matches your window groove or sill dimension for a snug, secure fit.

Q: Does the window waterproof sealing strip require adhesive or special tools to install?

A: No special tools are required. The rubber baffle is designed to slot into the window groove or sit along the sill edge with a friction fit. For extra security in some applications, a small amount of silicone sealant can be used, but is generally not necessary.

Q: How do I choose the correct size for my window?

A: Measure the width of your window sill groove or the outer window frame edge before ordering. Match your measurement to the available slot width or outer window dimension options listed in the specifications. If you are between sizes, choose the slightly larger option for the best seal.

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.