Usually, the joints of norament® do not have to be sealed on the entire surface. Exceptions: hygienic areas in hospitals and special laboratories.

We offer the nora® two-component joint sealing compound TH for sealing the joints and for sealing differential joints. A set consists of a can of basic compound (1), Art. 921, and a can of hardener (2), Art. 919, and 2 cartridges.

A can of basic compound plus a can of hardener make up 1000 g net of solvent-free two-component compound. Potlife approx. 30 minutes at 20 °C (room temperature). The potlife is shortened by higher temperatures, and prolonged by lower ones.

Packaging unit:
basic compound for norament® : can 820 g net
hardener: can 180 g net

2 one-way plastic cartridges for prepared joint sealing compound.

1000 g of nora® two-component joint sealing compound will be sufficient for:

differential joints: approx. 30 r.m., depending on the joint width involved
sealing of seams:
Tiles approx. 1000mm x 1000mm: approx. 1,0 kg/20m²
Tiles                 610mm x 610mm: approx. 2,0 kg/20m²
Tiles                 500mm x 500mm: approx. 2,5 kg/20m²

Tools:
special joint cutter, or joint milling machine if needed
special mixing spindle for drill
spatula for removing joint sealing compound

See under nora® special tools

Cleaning of tools: with brush cleaner.

I. Preparation work

1. Differential joints
   • Remove dirt from joints (brush off, scrape off)

     

   • Apply nora® liquid wax to seam areas. Ensure that no wax will penetrate the joints; if necessary, cut open again with the joint cutter.

2. Sealing of joints on the entire surface
   • Apply nora® liquid wax to seam areas

     

   • Cut open or mill out joints as narrowly as possible with the special joint cutter. Joint width: approx. 2.5 -3.0 mm. Joint depth approx. 1.5 mm (Exception: norament 945 grano - 5.0mm). For shockfree milling on high pastilles, a wallpapering bar is placed under the running wheels of the milling device. First seal the joints in the longitudinal direction; after the joint sealing compound has hardened, seal in the transverse direction.

     Remove milling chips (vacuum cleaner)

3. Sealing the joints between flooring and profiles
   • For joints between angle-shaped skirtings and the floorcovering, it is important to make sure that the skirting surfaces are waxed extremely thoroughly.

   • Cut open or mill out joints as narrowly as possible with the special joint cutter.

     Joint depth: approx. 1.5 mm

     Remove milling chips (vacuum cleaner)

4. Sealing of profile joints/mitre cuts
   • Cut profiles to size and wax the parts to be jointed before fixing. If the waxing is done afterwards, there is a risk that wax as a separating agent will also reach the cut surface of the profile joints.

   • Leave joints of 1 - 2 mm between the individual lengths when fixing the profiles.

1. Mix the basic compound and the hardener thoroughly (drill and mixing spindle; see under nora® special tools) until an even, streak-free shade is reached. Please ensure that the compound on the walls and at the bottom of the mixing container is also mixed properly.

   Always wear protective gloves! Wear safety glasses!

   
2. Cut off the tip of the cartridge and fill the mixed joint sealing compound into the cartridge by means of the pressing ring. Insert the piston and place the cartridge into the hand spray gun.

   
   
   

1. The prepared joint sealing compound is sprayed into the joints without leaving any gaps until a small bulb develops above the seam. At the end of the seam, the opening of the cartridge is closed with the finger so that no joint sealing compound will reach the floorcovering.

   
   Immediately after spraying, the joint sealing compound is once again pressed into the joint with a specially shaped metal spatula by running it evenly over the joint. In this manner, the surplus joint sealing compound is pressed to the sides right and left of the joint. You must make sure that the joint sealing compound in the joint is properly separated from the compound pressed to the sides.

   Hold the spatula in as flat a position as possible to avoid the development of hollow joints.

   
   

2. The surplus joint sealing compound pressed to the sides can be removed after approx. 12 hours (depending on the temperature).

   
   

3. The joints must not be walked on for approx. 24 hours.

4. Spilled joint sealing compound must be removed immediately.
   Cleaning at a later stage is not possible.

Sealing the joints does not replace insulationas per DIN 18 195 building sealings.