Products / Custom Weatherstrips

Koz İplik’s flexible manufacturing infrastructure offers tailored solutions for technical requirements that go beyond standard dimensions. We can produce all variations from our core product range (standard, finned, finned nonwoven, adhesive-backed) in custom sizes, and even combine these features in hybrid configurations.


Our Areas of Technical Flexibility:

Dimension Adaptation: Custom profile widths (4.5–12.7 mm) and heights (4–20 mm)

Combination Options: Hybrid solutions such as finned + adhesive or nonwoven + UV-resistant

Material Diversity: Adjustable PP hardness or EPDM alternatives

Color Matching: Custom colors available per RAL catalog specifications


Application Examples:

  • Non-standard cross-section wooden window systems
  • Narrow-space insulation for industrial roller shutters
  • Special angled fin designs for the furniture industry


All of our custom-made solutions maintain the core technical properties of our standard products:

  • ✓ 3,600 filaments/cm² density
  • ✓ 150–160°C heat resistance
  • ✓ UV stabilization
  • ✓ 30–60% elongation at break


To discuss your project’s technical needs and product feature combinations, please contact our engineering team. We provide technical feedback within 5 business days for all inquiries.

ORDER REQUEST APPLICATION FORM

Let's Grow Together!
Order Request FormAffordable order advantages from Koz İplik, Turkey's leading pile weatherstrip manufacturer! We are at your service with high-performance pile weatherstrip solutions for aluminum, PVC, and wood applications. We offer the most suitable products for your needs with our standard, finned, and custom production options.CREATE ORDER

Koz Seal - Turkey’s Power in Weatherstrip Manufacturing
From Yesterday to Today: Us!

About UsFounded in 2017 as an innovative, technology-focused industrial company, Koz İplik was established to meet strategic needs within Turkey’s weaving sector. Our primary mission is to eliminate Turkey’s dependence on imports for weatherstrips (insulation strips) and to create a domestic brand capable of competing in the global market.Production Capacity and InfrastructureWe operate one of the industry’s leading production facilities, with an annual capacity of 150 million meters. Our modern plant spans 10,000 m² indoors and is equipped with state-of-the-art weaving machines and automation systems...More