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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Window Tape

Protects from draught and saves energy. Prevents dust and dirt from outside. Extremely durable tape for in- and outdoor use. Adhesion to oil treated surfaces is limited. For the best result, install the tape in +10 °C or higher.



  • Make sure that the surface is clean
  • Remove old adhesives mechanically or with RK Acetone or similar oil-free product
  • The surface must be clean and dry and its temperature should be at least +10 °C

RK window tape


  1. Clean and dry the surface before installation
  2. Install the tape on the frames
  3. Install the tape directly from the roll for the best result
  4. Cut the tape in corners and install the ends on top of each other
  5. You can remove the tape easily even after several months


cleaning a window with a cloth