Chemfix100 Epoxy Adhesive

Pure injectable epoxy adhesive for rebar dowelling and chemical anchoring — ETA1 for cracked concrete, seismic C1-C2, Shock loads and green (EPD/LEED) certification.

ETA1 — Cracked concreteSeismic C1-C2Shock loadsGreen EPD/LEEDUnderwater applicationPost-installed rebar — EAD

The Adit chemical anchor family

Choose the right adhesive for your load, substrate and approval requirements.

AC500Epoxy · ETA1 · Cracked concrete · Underwater Chemfix100Epoxy · ETA1 · Shock · Green certification Chemfix200Hybrid · ETA + ESR · Potable water CT50ProPolyester · ETA7 · Concrete & blocks PESF TOPPolyester · ETA7 · Caulking gun Hollow BlocksSleeves & mesh for anchoring in block

Technical specification

Property	Chemfix100 — pure epoxy, European approval
Adhesive type	Advanced epoxy
Technology	Injectable chemical anchoring
Cracked concrete	Yes
Dynamic loads	Yes — wind, cyclic and Shock
Seismic	Yes — C1 and C2
Underwater application	Yes
Diamond drilling	Yes
Fire rating	Yes
Green certification	Yes — EPD / LEED
Approvals	ETA for concrete anchoring · ETA for rebar · Shock approval

Downloads

Proven in the field — selected projects in Israel

Chemfix100 epoxy adhesive is installed in hundreds of projects across Israel.

View all projects →

Instructional & field-test videos

Epoxy anchoring adhesive: the complete guide

Everything you need to know about epoxy anchoring adhesive — from the principle, through installation, all the way to the largest projects. This guide was written by the experts at Adit Ltd., the largest chemical-anchor company in Israel.

What is epoxy anchoring adhesive and how does it work?

Epoxy anchoring adhesive is a two-component chemical bonding material — a pure epoxy resin and a hardener — designed for anchoring bolts, steel rebar dowels, threaded rods, dowels and studs into concrete, stone, brick and other building materials.

When the two components are mixed, a chemical reaction (polymerization) begins that creates an extremely strong three-dimensional structure which bonds to the base material with exceptional strength. Unlike mechanical anchors that rely on friction alone, materials such as ADIT CHEMFIX100 create a true chemical bond with the walls of the borehole — providing far higher resistance to tensile, shear and vibration forces.

The bonding principle:

The molecules of the pure epoxy adhesive penetrate into the micro-cracks and pores of the base material and, after curing, form an unbreakable barrier between the anchor and the concrete, even under extreme conditions.

Installation stages of epoxy adhesive (for bolts and rebar)

Drilling — drill a hole to the diameter and depth defined in the manufacturer’s table, according to the diameter of the threaded rod or steel rebar. Hammer drilling is recommended; if diamond drilling is used, be sure to achieve the required roughening.
Cleaning the hole — use a steel brush and blow out the dust. This is a critical step for optimal bonding of the epoxy to the concrete!
Injecting the epoxy — fill the hole from the bottom upwards (about 2/3 of the depth) using a dedicated dispenser or gun and a static mixer.
Inserting the anchor / rebar — insert the threaded rod or steel rebar with a slight rotating motion to ensure perfect coating of the material and removal of air bubbles.
Curing time — wait according to the ambient temperature before applying load (see the FAQ for details).

Advantages of advanced pure epoxy (CHEMFIX100)

Several types of chemical anchoring systems exist on the market: polyester, vinylester and epoxy anchors. Advanced pure epoxy — such as ADIT CHEMFIX100 — offers a unique combination of advantages that cannot be ignored in demanding projects:

Maximum strength: tensile and shear load values significantly higher than polyester and vinylester systems. It is the number-one choice for extreme loads.
Moisture and chemical resistance: pure epoxy is not affected by water, oils, fuels or acids. It is perfect for industrial environments and even underwater projects.
Temperature stability: retains its properties over a very wide temperature range.
No creep over time: unlike polyester, epoxy does not “creep” (shrinkage) under prolonged load — a critical property for connections at the bases of vibrating machinery and in bridges.
Suitable for weak or cracked concrete: because the epoxy does not create expansion pressure (as a mechanical anchor does) and distributes the forces over a large surface area, it is especially effective when working close to edges and in low-quality concrete.
ETA approvals and standards: meets the requirements of ETAG001 and is recognized by structural engineers in official projects in Israel and worldwide.

Experience from recent years’ projects

ADIT CHEMFIX100 epoxy has proven itself in the field in the most complex and demanding projects in Israel and worldwide. The combination of strong chemical grip, resistance to extreme environments and compliance with standards has made it the engineers’ choice in projects such as:

Ports and coastal infrastructure
Tunnels and bridges
High-rise buildings and shopping malls
Multi-storey car parks
Factories and industrial facilities

Underwater anchoring

Anchoring bolts and rods in underwater structures is one of the toughest challenges in the field — water pressure, salinity and constant vibration. The performance of CHEMFIX100 in these environments has been proven time and again in port projects in Israel and abroad, confirming that this is a first-class product.

Why choose Adit Ltd. for your epoxy adhesive?

In a market flooded with products from every direction, choosing the right supplier is no less critical than choosing the product itself. Adit Ltd. — the largest company in the field in Israel today — offers a complete package:

In-depth engineering consulting: engineers who help with load calculations, regulatory compliance and selecting the right product for rebar and rods.
Field training: agents with over 10 years of experience come to the site and provide instruction on safe, standard-compliant installation of epoxy adhesive.
Quality and reliability: all products undergo rigorous quality control and are certified to international standards (ETA).
Competitive price: an unbeatable price-to-performance ratio, even for huge projects.
Available immediate stock: fast supply to any point in the country from the largest warehouse in Israel.

Frequently asked questions

What is the difference between epoxy adhesive and a polyester chemical anchor?

Pure epoxy creates a strong, long-lasting chemical bond and prevents creep, whereas polyester is a cheaper solution that tends to creep, is less resistant to moisture and heat, and is not recommended for high loads or industry. With CHEMFIX100 you get full, superior epoxy performance with international-standard approvals.

What is special about epoxy adhesive for rebar in concrete?

Planting steel rebar dowels in concrete is intended for continued casting and for extending structures. Epoxy adhesive for rebar (pure epoxy) is the only material that guarantees perfect integration between the steel and the concrete, so the connection performs as a single cast. It has the highest load-bearing capacity and does not shrink, which is why it is the material most required and recommended by structural engineers for installing rebar dowels.

How long does the epoxy adhesive take to harden before it can be loaded?

Curing time depends on the ambient and substrate temperature. At 20°C, loading can begin after about 12 hours (if diamond drilling was used, you usually need to wait 24 hours). At 30°C and above, curing is significantly accelerated. At low temperatures (below 5°C), the curing process of epoxy is very slow and special formulations are required. Adit’s experts will provide you with precise timing tables.

Can epoxy adhesive be used in wet concrete or underwater?

Yes! Unlike many other adhesives, ADIT CHEMFIX100 epoxy adhesive is approved for use in wet concrete and even underwater. The advanced formula enables a proper chemical reaction even in the presence of moisture — a property that makes it the perfect solution for ports, bridges over water and underwater infrastructure.

What is the correct hole size for epoxy adhesive when anchoring rods and rebar?

The hole size is determined by the diameter of the anchor or rebar. Generally, for threaded rods (up to 20 mm diameter), the hole should be 2 mm larger than the rod. For planting building rebar dowels, the hole should be about 4 mm larger than the rebar diameter, to allow the epoxy to fully wrap the ribs of the steel. It is important to follow the manufacturer’s drilling tables.

Is epoxy adhesive suitable for cracked concrete?

Absolutely. CHEMFIX100 epoxy adhesive holds a special approval for “cracked concrete” in accordance with the European ETA standard. Its grip performance in cracked concrete is tested in laboratories under high stress, to verify that the adhesive remains stable even as the concrete forms micro-cracks around it.

Do you need to clean the hole before injecting epoxy for rebar?

It is mandatory! Most grip failures of rebar anchored with epoxy result from a lack of cleaning. Use a dedicated steel brush at least twice, and vacuum or blow all remaining dust out with compressed air. Dust left in the hole prevents the epoxy from bonding to the concrete walls.

Do you need to inject a lot of epoxy adhesive into the hole?

You don’t need to fill the hole all the way. The rule of thumb is to fill between 50% and 70% of the drilled volume (always start injecting from the bottom upwards). When you insert the threaded rod or steel rebar with a slight rotating motion, the adhesive is pushed up and wraps the anchor. If you inject too much material, it will simply spill out of the hole opening and be wasted.

What are Shock loads and why do they matter?

Shock loads are sudden impact loads — explosion, blast, impact. Approval for such loads is required in protected structures, security facilities and critical infrastructure. Chemfix100 is one of the few adhesives on the Israeli market that carries an explicit Shock-load approval.

What is the difference between Chemfix100 and Chemfix200?

Chemfix100 is a pure epoxy — exceptionally high pull-out strength and Shock approval. Chemfix200 is a hybrid vinylester — faster curing, and additionally carries the American ESR standard, a block standard and potable-water approval. The choice depends on the load, curing time and specification.

Is it suitable for rebar?

Yes — and it has a separate ETA approval for rebar, in addition to the approval for anchoring in concrete. This matters: not every chemical adhesive is officially approved for post-installed reinforcement.

What is the green certification?

Chemfix100 carries an EPD declaration and a contribution to LEED scoring — relevant for projects committed to green building and to the Israeli standard SI 5281.

Planning a project with heavy loads? Tell us the anchoring type, rebar diameter and load — our engineers will run the calculation and send you the ETA data.

Talk to our engineers