Two-component anchor

A two-component (chemical) anchor is an adhesive based on a fast-curing synthetic resin. It is designed to secure metal anchor studs and is packaged in cartridges. Depending on the manufacturer, the cartridges are compatible with brand-specific dispensing guns or standard sealant guns.

Purpose and characteristics

The adhesive compound contains no styrene or other toxic substances, is chemically resistant, has a low VOC (volatile organic compound) content and no odour. The adhesive is used to fill holes in bases made of the following materials:

• brick;
• natural stone;
• solid and various types of cellular concrete;
• the compression and tension zones of concrete.

Most two-component anchors can be installed overhead, are suitable for both indoor and outdoor use, and retain their properties underwater and at high and low temperatures.

To ensure the anchor withstands the specified conditions, review the adhesive’s instructions and select suitable threaded rods:

• for dry rooms or structures temporarily exposed outdoors — zinc-plated carbon steel studs;
• for rooms with any humidity level and permanent outdoor exposure — hot-dip galvanized studs;
• for industrial zones and aggressive environments — alloy steel studs.

Installing a two-component anchor

1. Drill a hole of the required size (small spacing between adjacent fixings and minimal distance from the edge of the surface are permissible).
2. Remove dust from the hole: blow it out with a pump, clean with a brush, then blow out again.
3. Using the gun, inject adhesive into the cavity to approximately 2/3 of the hole’s depth.
4. Insert the stud, turning it several times.
5. Allow the curing time specified in the adhesive’s instructions.
6. Tighten the nut, checking the tightening torque.