View as

190 products

Sort By

Best selling
  • Sort By

FAQs about tool

See all FAQs

What is OTTO Chemie known for?

OTTO Chemie is a German manufacturer recognized for its premium-quality sealants, adhesives, and foams used in construction, glazing, and sanitary applications for over 140 years.

Are OTTO Chemie products safe for indoor use?

Yes. OTTO Chemie sealants and adhesives are developed with low-emission, environmentally friendly formulations that meet strict European safety standards making them ideal for both indoor and outdoor use.

Can OTTO Chemie silicones be used on natural stone or sensitive materials?

Absolutely. OTTO Chemie offers specialized neutral silicones designed to prevent staining or discoloration on natural stone, marble, and other delicate surfaces.

Do OTTO Chemie products require special primers or surface preparation?

For optimal adhesion, some materials may require an OTTO-approved primer. Always refer to the product’s technical data sheet for surface preparation recommendations.

How should OTTO Chemie products be stored for best performance?

Store cartridges in a cool, dry place away from direct sunlight and extreme temperatures. Proper storage helps maintain product consistency and extends shelf life.

Customer reviews

  • It’s fantastic! I am very satisfied with the quality and straightforward design of these tile levelers, which expedite my ceramic tile installations. I appreciate that they consistently introduce new solutions to the market, making my work on-site more manageable.
    testimonial author avatar
    Simon Dudok
    Tiler from Novi Sad, Serbia
  • Ever since I started using these tile levelers, I’ve been able to complete more work of higher quality than before. The clips are excellent because they don’t break when tightened with pliers, and they always snap cleanly at the base, leaving a pristine grout line. I also like the wedges because they can be reused, and their front and back can be adjusted to fine-tune grout width when wedged between two tiles.
    testimonial author avatar
    Jovan Tosic
    Craftsman from Belgrade, Serbia

Shop by brands

About Otto Chemie

Experience superior quality

Constra offers durable, high-performance tools and construction products designed to make every project easier, safer, and more efficient.

See Our Collections