Secure Concrete & Masonry Fixing for Trade Installations

Need a fixing that doesn't rely on mechanical expansion inside the substrate?

Hobson | Chemical Anchors provide a practical approach to bonded anchoring for suitable concrete & masonry applications. Used with compatible anchoring components & the correct installation method, chemical anchoring can provide a secure connection for construction, fabrication, plant installation, maintenance & retrofit work.

The quality of the finished anchor starts before any resin enters the hole. Substrate condition, hole diameter, drilling depth, cleaning, embedment, temperature & curing all matter.

► Secure suitable threaded studs into concrete & masonry
► Install brackets, plates & fabricated components
► Create bonded fixings without relying on expansion pressure
► Work with post-installed anchoring applications
► Match anchoring components to the substrate & job requirements
► Build a fixing around specified hole preparation & embedment

For alternative anchoring methods, explore Anchor Bolts.

What Are Hobson | Chemical Anchors?

Chemical anchoring uses a compatible resin system to bond an anchor element into a correctly drilled & prepared hole.

Instead of relying on the expansion action used by some mechanical anchors, the chemical anchoring system forms a bond between the anchor element & surrounding substrate as the resin cures.

That difference changes how the installation needs to be approached.

Drilling the hole is only the first step.

Hole dimensions, cleanliness, anchor diameter, embedment depth, resin placement, temperature & curing conditions can all influence the completed fixing.

Where the job requires a broader range of structural fastening components, browse Structural Fasteners & Bolts.

For practical guidance on choosing fasteners for different jobs, read the Fastener Guide Bolts Screws Anchors.

Why Choose Chemical Anchoring?

Sometimes the better question isn't “Which anchor is strongest?”

It's “Which anchoring method suits this substrate, location & connection?”

Chemical & mechanical anchors create their fixing action differently, so each needs to be considered around the actual installation.

Chemical anchoring can be particularly useful where a bonded fixing is specified or where expansion pressure needs to be considered.

That doesn't make chemical anchoring automatically better than a mechanical anchor. The substrate, loads, fixing location, edge distance, spacing & installation requirements should determine the choice.

Common Applications

Base Plates & Fabricated Steelwork

Installing a base plate into existing concrete is a good example of why anchor selection needs to go beyond stud diameter.

Plate geometry, loads, concrete condition, anchor spacing, edge distance & embedment can all affect the connection.

For the wider fastening requirements around fabricated steelwork, browse Bolts & Fasteners.

Machinery & Workshop Equipment

Plant, machinery, guards & workshop equipment may require post-installed anchors into existing concrete slabs.

Vibration, loading, equipment movement & substrate condition should be considered before selecting the anchoring system.

Construction & Retrofit Work

Retrofit jobs often involve attaching new components to existing structures.

Because the substrate is already in place, installers need to work with its actual condition rather than assuming every fixing point is identical. Check the concrete or masonry, drilling location & specified anchoring requirements before installation begins.

Threaded Stud Installation

Chemical anchoring is commonly associated with threaded studs, but matching the stud diameter alone isn't enough.

The complete installation needs the correct hole diameter, depth, compatible resin, embedment & curing conditions.

Concrete Repair & Upgrade Work

New brackets, steelwork or equipment may need to be installed as part of an existing concrete upgrade.

If the concrete itself is deteriorated, cracked, loose or otherwise unsuitable at the proposed fixing point, deal with the substrate condition before treating it as a sound anchoring base.

For related remediation products, explore Concrete Repair & Restoration.

Product Selection Guide

Start with the substrate, not the stud.

Before choosing the anchoring components, work through the conditions that will affect the completed fixing.

For lighter or different fixing applications where chemical anchoring isn't required, browse Anchors & Wall Plugs.

The Hole Matters as Much as the Anchor

Here's the part that's easy to underestimate.

A chemical anchor starts with the quality of the drilled hole.

An accurately positioned stud won't compensate for a hole that has been drilled incorrectly or prepared differently from the product instructions.

Before installation:

► Confirm the specified hole diameter
► Drill to the required depth
► Follow the required hole-cleaning procedure
► Check the substrate around the fixing point
► Confirm the anchor element & resin are compatible
► Check the required embedment
► Observe application temperature requirements
► Keep the anchor correctly positioned while curing
► Allow the specified cure time before loading

Need drilling equipment for concrete & masonry? Browse Concrete Cutting & Drilling Tools.

Expert Tips for Chemical Anchor Installation

Don't Guess the Hole Size

The stud diameter doesn't automatically tell you the correct drill size.

Use the drilling requirements specified for the complete anchoring system.

Clean Beyond What You Can See

A hole can look clean at the opening while still containing drilling dust deeper inside.

Follow the required cleaning sequence & equipment specified for the product rather than judging cleanliness from the top of the hole.

Know the Working Time Before You Start

Don't drill a run of holes & only then discover the resin has a shorter working window than expected under the site conditions.

Check the product instructions before starting the installation sequence.

Get Embedment Right

More embedment isn't automatically better & less isn't automatically acceptable.

Install the anchor to the depth specified for the system & connection.

Don't Disturb the Anchor During Cure

Once positioned, keep the anchor undisturbed for the required curing period.

A stud feeling firm by hand isn't proof that the resin has reached the condition required for loading.

Treat the Fixing as a Complete System

A chemical anchor installation isn't just a stud surrounded by resin.

The substrate, drilled hole, cleaning procedure, resin, anchor element, embedment & curing conditions work together.

For another practical look at fixing selection, read Why Good Fasteners Matter More Than the Tool You Drive Them With.

Before the Resin Goes In

A few checks before installation can prevent considerably more work later.

Is the substrate sound?
Inspect the proposed fixing area before drilling.

Is the hole in the right location?
Consider edges, nearby anchors & the component being installed.

Is everything ready for the working window?
Have the studs, resin, cleaning equipment & installation tools prepared before injection begins.

Has the product information been checked?
Use the instructions, technical data & safety information supplied for the exact anchoring products being installed.

Where resins & other chemical products are handled on site, How to Read a Safety Data Sheet – A Quick Guide for Workshop Operators is useful reading for workshop & site crews.