Chemical Anchor Gun & Accessory

What you need with a chemical anchor

A chemical anchor cartridge holds a resin and a hardener. A gun (applicator) pushes both out through a mixer nozzle, where they mix and start to react, and the mixed resin bonds the rod into the hole. Hobson says the nozzles are essential: they are designed to mix each chemical correctly, which is what gives the load capacities and gel and cure times in the product's ETA, and the wrong nozzle will not mix it properly. Every XCHEM PRO tube includes two nozzles; more are sold here.

Treat the resin maker's instructions as mandatory: the nozzle, the hole cleaning and the sleeve named on the resin's data sheet and ETA. A chemical anchor only reaches its published values when it is installed that way, and structural or safety critical fixings need designing to the ETA by an engineer. In the selector, "Suits / material" shows the cartridge a gun fits, or the material of a sleeve or plug.

Which chemset gun and nozzle for which resin

Each accessory and the cartridges or job it suits. Select a row to open it. The nozzle for each XCHEM resin is the one named on that resin's data sheet; use it, not another nozzle that happens to fit.

Cleaning the hole before you inject

A dusty hole will not bond. The installation steps on each XCHEM data sheet show the cleaning sequence for holes in concrete: for H501 hybrid, V401 vinylester and P201 polyester, blow the hole out 4 times, brush it 4 times, then blow it out 4 times; for E701 epoxy, blow 2 times, brush 2 times, blow 2 times, brush 2 times and blow 2 times. Each sheet says to refer to the product's ETA for the full installation.

Use a brush that matches the drill hole diameter and a blow-out pump or compressed air tool: both are on our anchor cleaning page.

Installing with the gun and nozzle

1. Load the cartridge in the gun that suits its size, and screw on the nozzle named on its data sheet. Add an extension where the hole is deeper than the nozzle reaches.
2. Pump the first resin to waste until it comes out an even colour, as the data sheet pictures show.
3. In solid concrete, fill the hole from the bottom: the data sheet pictures show it filled about two thirds. In a sleeve, the XCHEM sheets give no fill amount, so follow the resin's ETA for filling the sleeve, or ask us.
4. Insert the rod with a twist before the gel (working) time runs out. Then leave it undisturbed and unloaded until the cure time has passed. Both times depend on the base material temperature and are on the data sheet; wet holes take longer to cure.
5. Hobson's data sheets note the resin itself must be at least 20°C.

Using the XCHEM sleeves in hollow masonry

In hollow masonry the resin needs something to hold it. Hobson explains that the sleeve contains the liquid chemical so it sets into a shape that grips the inside of the hollow block or brick and carries the load from the anchor to the wall. Use a resin with a masonry ETA: H501, V401 or P201. E701 epoxy is too thin for hollow masonry: it can drain out of a perforated sleeve before it gels, and it has no masonry ETA.

The H501, V401 and P201 data sheets give these sleeves and installation limits for hollow masonry of at least 6 MPa compressive strength and a density of at least 700 kg/m3 (H501) or 900 kg/m3 (V401 and P201). The sheets give no minimum member thickness for hollow masonry; check the ETA. Loads are on each resin's data sheet and apply only under its conditions. Every chemical anchor sleeve we carry, including the Mungo MIT-SH range, is compared on our chemical anchor page.

Piston plugs and nozzle extensions

• •Nozzle extensions (250mm and 1m XCHEM, and the Mungo MIT-MI-V1) lengthen the mixer nozzle so you can fill a deep hole from the bottom.
• •Piston plugs fit on the end of the extension and are sized by diameter: plastic plugs from 14 to 35mm in packs of 10, and Mungo MIT-VS plugs from 22 to 37mm sold singly. They are commonly used to fill deep, wide or overhead holes from the bottom without trapping air. Hobson publishes no data sheet for them, so size the plug to the drill hole and use one where the resin's ETA calls for it.

Mungo MIT guns and nozzles

• •MIT-PP-HK Easy-press system case guns (manual) and MIT-PP-A cordless guns, each in a version for 165, 280 and 300ml MIT cartridges and one for 400ml.
• •The Mungo MIT-SP styrene free polyester we carry comes in 400ml cartridges, so it takes the 400ml guns, and the Mungo product guide lists the MIT-MI-2 mixer nozzle for it.

Chemset guns and accessories in Adelaide

Allmat supplies chemical anchor guns, nozzles, sleeves, piston plugs, cleaning brushes, resin and threaded rod to builders, concreters and steel fixers across Adelaide and South Australia. Add the accessories to a quote with the resin, and we will price the lot.

Questions