Kiilto Pro Sanitary Silicone
Sanitary silicone

M1-classififed low odour neutral silicone sealant for sealing expansion joints, junctions between walls and floors and other material boundaries and penetrations in wet areas. Contains antifungicide. Also outdoors.

Special features

  • thermal resistance +120 °C
  • contains antifungicide
  • low odour
  • not overpaintable
  • for interior and exterior use




Kiilto Pro Sanitary Silicone is a one-component neutral silicone. Complies with the requirements EN 15651-3:2012 standard. Not for aquariums or natural stone, eg. marble. For mounting mirrors and toilet seats we recommend Kiilto Masa. When installing single small tiles and higher thermal resistance is needed (+150 °C), you can use grey silicone.

Package Size Color EAN Code
310 ml 00 transparent 6411513510315
310 ml 10 traffic white 6411513511312
310 ml 11 linen 6411513550311
310 ml 28 sand 6411513717318
310 ml 29 light beige 6411513526316
310 ml 30 beige 6411513551318
310 ml 31 toffee 6411513512319
310 ml 33 cocoa 6411513527313
310 ml 36 terracotta 6411513571316
310 ml 38 ground brown 6411513528310
310 ml 39 marble white 6411513513316
310 ml 40 concrete 6411513547311
310 ml 41 stone 6411513569313
310 ml 42 steel 6411513570319
310 ml 43 pearl 6411513530313
310 ml 44 iron 6411513652312
310 ml 46 silver 6411513572313
310 ml 48 antracite 6411513718315
310 ml 50 graphite black 6411513549315
310 ml 90 iceblue 6411513553312
310 ml 94 smoke 6411513654316

available in several colours


5 x 5 mm joint, approx. 12 m / cartridge

Curing rate

approx. 2 mm in 24 h and approx. 10 mm in
a week

Density/specific weight

n. 1,0 kg/dm³


Shore A approx. 20

Skin time

5–20 min (20 °C, RH 50 %)


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

Temperature resistance when dry

-40...+120 °C, grey +150 °C


moisture curing neutral silicone polymer

Working conditions

optimal temperature is +18–20 °C, however within the range +5–40 °C

Instructions for use

The surface to be jointed must be dry, free from dust and grease.
Solid foam plastic profile can be used as joint bottom filler.

Unscrew the cap from the extrusion tip. Cut open the cone at the
front end of the cartridge. Screw the extrusion tip in place and cut it to
the desired size. Press silicone to the joint and smooth it immediately
by using a trowel or fingertip moistened with clean water. Leave the
extrusion tip in place and close the cartridge with the cap properly
after use. To facilitate cleaning, apply, for example, masking tape on
both sides of the joint. Remember to remove the tape right after

When renewing silicone joints, the old silicone must be removed.

Additional information

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

Some paints, detergents and solvents contain chemicals that may
discolor silicone, either in direct contact with the silicone or when
released in the air. Also, similar compounds may be released from
some wood types (including heat-treated radiata pine) and acetoxy silicones (so-called acetic silicones). Some plastics and rubbers
contain plasticizers that may also react with silicone. If needed,
we recommend preliminary tests prior to use. If using ceramic tile
paints, use acetic Kiilto Pro Silicone E Sanitary Silicone.

Silicone joints' 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 them with new ones when necessary, at least every 5 years.

Kiilto Pro Sanitary 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.

When sealing joints in one location, ensure that all silicone cartridges
have the same batch number.

The colours of Kiilto Pro Sanitary Silicone have been toned in a neutral light to match the colours of Kiilto Pro Tile grout. Light in different light sources is different. Thus, the lighting used in the space can affect how the color of the silicone looks.

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 for the 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 more
information on product and package disposal, visit

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