Scratches and small cracks

Small holes

Large holes


Good to know about weatherproofing

When to replace seals?

Why to replace seals?

Choosing the correct seal

Checklist for weatherproofing

The most common mistakes in weatherproofing

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Groove Seal Window TPE, O-profile


Diameter: 8 mm
Length: 10 m
Color: white

The O-profile seal is designed for windows that have a groove. Made of thermoplastic elastomer (TPE), which is durable, high quality and fully recyclable. Weatherproofing protects from cold, draft and dampness. Proper seals help to save energy.

The seals are waterproof, washable and withstand extreme weather conditions, such as cold (-50 ºC) and hot (+130 ºC). Withstands chemicals but not solvents such as petroleum ether or oils.

Before installation, make sure the seal fits the groove by comparing it e.g. to the old seal. Remove the old seal and clean the gap before installation. Part the seals and press the installation arrow on the side of the seal into the groove so that the seal attaches into place. RK seals can be installed at any temperature.


  • Extremely elastic
  • Fully recyclable
  • Lasts up to 15 years
  • Diameter: 8 mm 
  • Installation arrow width: 4 mm and depth: 4,7 mm
  • Suitable for 3-6 mm gaps

Technical Documents

Technical Datasheet

Material Safety Datasheet


Declaration of Performance


User Manual

Size Color SKU Barcode
8 mm 10 m 6418091340006 6418091340006
8 mm 10 m 6418091340204 6418091340204
8 mm 100 m 6418091340105 6418091340105
8 mm 100 m 6418091340129 6418091340129
8 mm 100 m 6418091340136 6418091340136