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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Silicone Seals

Silicone rubber has many unique properties and can be used for various applications. It has a good resistance to UV thanks to which it retains its color and elasticity even in strong sunshine. 

RK Weatherproof Silicone Seal is a highly durable, permanently elastic, high quality, O-profile seal for weatherproofing windows and doors. The seal is installed with acetoxy silicone and its lifetime is 15 to 20 years, depending on conditions and use. Silicone Seal is available in two different diameters: 

6 mm for 1-5 mm gaps (white & brown)

8 mm diameter for 1-7 mm gaps (white & brown)

Below instructions are for silicone seals which are installed with acetoxy silicone sealant. For self-adhesive silicone seals, please see the section Self-adhesive Seals


applying silicone sealant