Kiilto Silicone Silikonimassa

Neutral silicone with M1 emission classification and anti-fungicide for movement joints and sealing of joints. Odourless. Excellent application and spreading properties. Matching colours with Kiilto Saumalaasti tile grout. Also for exterior use. Not suitable for aquariums.

Special features

  • the first sanitary silicone with M1 emission classification.
  • service temperature -40  °C...+150  °C  
  • contains anti fungicide
  • available in the six most used colours: transparent, white, marble white, grey, dark grey and charcoal grey.  




Kiilto Silicone is a low-emitting, one component neutral silicone. Meets the requirements according to EN 15651-3:2012 standard. Not suitable for aquariums or natural stone, such as marble. For fixing toilet seat and mirrors, we recommend Kiiltofix Masa.

Package Size Color EAN Code
310 ml M00 transparent 6411513658314
310 ml M10 white 6411513659311

available in many colours


5 x 5 mm joint approx. 12 m/cartridge

Curing rate

approx. 2 mm per 24 h and approx. 10 mm per week.

Density/specific weight

approx. 1.0 kg/dm³


Shore A approx. 20

Skin time

5–20 min. (20 °C, RH 50 %)


Store in a in a tightly closed original container in a dry, cool place (below +25 °C). See best before date on the package.

Temperature resistance when dry

-40–+150 °C


moisture-curing neutral silicone polymer

Working conditions

recommendation: +18–20 °C, however within the range +5–40 °C

Instructions for use

Substrate must be dry, free from dust and grease. For filling the bottom of the joint, you can use closed-cell plastic.

Unscrew the cap from the extrusion tip, then cut open the cone. Screw the tip in place and cut to an appropriate size. Extrude sealant into the joint, then smooth immediately using a trowel or fingertip moistened with water. Once finished, leave the extrusion tip in place and close the cartridge properly. To facilitate cleaning, apply, for example, masking tape onto both sides of the joint. Remember to remove the tape right after application.

Always remove the old silicone from joints before applying new, and remove possible mould spots by using, for example, Kiilto Kodin Klorite according to instructions.

Additional information

The prevailing conditions such as ambient temperature, the silicone's and joint's temperature, material, air humidity, as well as the amount of silicone applied, have a strong impact on the skin time and vulcanization.

Some paints, detergents and solvents contain chemicals that may discolour the silicon, if in direct contact or if evaporated in the air. Also some woods (including heat-treated radiata pine) and acetoxy silicones (so called acetic silicones) evaporate similar compounds. Some plastics and rubbers contain plasticizers that may also react with the silicone. If in doubt, we recommend preliminary tests before use. If using ceramic tile paints, use acetic Kiilto Pro Silicone.

Siliconejoint’s lifespan is limited. It depends on the room’s utilization rate, cleaning and ventilation. Check the condition of joints in wet rooms regularly and replace with new, at least every 5 years.

Kiilto Silicone adheres well on different materials (e.g. ceramic tiles, glass, furniture materials). However, preliminary adhesion tests are recommended to ensure proper adhesion. For transparent plastics (PC, PMMA) we recommend clear silicone

Make sure all your silicone cartridges have the same batch number for colour consistency in the joints.

The colours of Kiilto Silicone are toned in neutral light. Since light in different light sources may vary, the colour of the silicone may vary slightly depending on lightning of the room.

The information given in this product data sheet is based on our tests and our practical knowledge. The technical data is defined in standard conditions. Variations in local working conditions and methods will affect the product performance and result. We guarantee the high quality of our products according to our Quality Management System. No liability can be accepted from incorrect use of the product or prevailing conditions, over which we have no control. Thus, we cannot be held responsible for the final result. The correct use of the product presupposes that the user has made him/herself aware of the contents of the working instructions and procedure guide, if provided.

Environment and safety

Avoid unnecessary skin contact and exposure with the fresh product, use safety gloves. Refer to material safety data sheet. For information on product and package disposal, go to

M1 emission classification for building material
CE marking
The Nordic Swan Ecolabel