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sealants are used when a seam, joint, gap or junction needs to be closed with a neat connection line. The category includes acrylic, silicone, fire-resistant, installation and adhesive sealants for repair, finishing, water-contact areas, window blocks, facades and special tasks.

What sealants are used for
  • filling seams, joints, gaps and technological openings between construction elements;

  • forming a neat seam around window, door, sanitary and decorative assemblies;

  • reducing the risk of moisture, dust or drafts entering through loose junctions;

  • use indoors, outdoors, in water-contact areas or temperature-loaded zones depending on material type;

  • combining sealing with fixing when an adhesive sealant is selected.

How to choose a sealant
  • for repair and finishing seams, check acrylic sealants with the required colour and paintability;

  • for bathrooms, showers, kitchens and water-contact areas, choose sanitary or silicone materials by surface compatibility;

  • for window, facade and thermal-insulation installation seams, check A or B series materials depending on the application side;

  • for fireplaces, stoves and hot structures, use a special fire-resistant sealant with the appropriate temperature range;

  • when an element must be bonded and the seam closed at the same time, check adhesive sealants.

What to check before application
  • surfaces should be dry, solid, level and cleaned of dust, dirt, grease, old coatings and poorly bonded particles;

  • porous or weakened substrates should be prepared and primed according to the specific product recommendations;

  • before work, check sealant compatibility with the substrate, application temperature and seam operating conditions;

  • fill the seam evenly, then shape the required geometry with a spatula or seam tool;

  • before load or further finishing, follow the drying time stated for the selected material.

Wood shrinks in winter and swells in summer, so rigid filler falls out of a gap within a season while an elastic sealant moves with the board. Coloured sealant comes in four wood shades, resists water and UV and works up to +100 °C, so it suits parquet, stairs, the floor-to-skirting joint and underfloor heating. White Universal can be filled and painted once dry and is used for cracks in wooden frames, door casings and sills. Both are applied from +10 °C.