Step 1: Drilling

Drill a hole in the substrate. The hole diameter should be 2 mm larger than the element being anchored (for M16 and smaller). Always check the manufacturer's recommendations on the chemical anchor packaging.

Step 2: Removing dust from the surface

Remove the dust from the surface around the hole so that it does not get back inside after cleaning.

Step 3: Blowing out the hole

The performance of a chemical anchor depends on its adhesion to the walls of the hole, so no dust may remain in it.

• In cracked concrete, use compressed air (min. 6 bar).
• In non-cracked concrete, you can use a manual blow-out pump – do at least 4 cycles. Do not use a vacuum cleaner.

Step 4: Brushing the hole

Push the brush all the way to the bottom of the hole and pull it out in a straight movement. Do at least 4 strokes. The brush should have a diameter 2 mm larger than the hole (M16 and smaller).

Step 5: Blowing out again

Repeat the cleaning until no more dust comes out of the hole.

Step 6: Preparing the chemical anchor

Open the cartridge, insert it into the gun and fit the mixer.

Step 7: Mixing test

Dispense about 15 cm of compound onto paper until it has a uniform light grey colour.

Step 8: Applying the compound

Fill the hole from the bottom upwards. Fill at least 2/3 of the hole volume. If necessary, use a mixer extension.

Tip

The compound must cure fully before you load the threaded rod. The curing time depends on the temperature of the substrate. Always check that the chemical anchor in question is suitable for the specific application.

Step 9: Inserting the element

Insert the element being anchored with a twisting movement so that the compound thoroughly covers the entire surface of the rod.

For diameters above M16, in cracked concrete and when installing in damp conditions, follow the ETA instructions.