CT50Pro Chemical Anchor

CT50Pro Chemical Anchor (Polyester)

Injectable polyester chemical anchor with European ETA7 approval — Israel’s best-selling chemical anchor for concrete and hollow blocks.

ETA7 — Concrete & BlocksETA for hollow blocksWet holeFire ratedGreen — LEEDTested up to Ø25 rebar

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

PropertyCT50Pro — polyester chemical anchor, European approval
Adhesive typePolyester
Original nameChemfix PESF
TechnologyInjectable chemical anchoring
European approvalYes — ETA7 for concrete · ETA for blocks
Cartridge sizes410 ml cartridge · 300 ml silicone-gun tube (PESF TOP)
Wet holeYes
Fire ratingYes
Green standardYes — LEED
Cure timeLoadable within about 8–12 hours at 20°C
ApplicationsAnchoring into concrete and hollow blocks

Downloads

Proven in the field — selected projects in Israel

CT50Pro polyester chemical anchor is installed in hundreds of projects across Israel.

Neve Doron New Da Vinci AshtromDa Vinci Ashtrom Road 85 CarmielRoad 85 Carmiel Sigalit Neighborhood Beer ShevaSigalit Neighborhood, Beer Sheva Touch Beer ShevaTouch Beer Sheva Savyonei ShohamSavyonei Shoham Science Park Ness ZionaScience Park Ness Ziona Rakafot Plot 206Rakafot Plot 206 Ram Tower JerusalemRam Tower Jerusalem Narcissim Rishon LeZionNarcissim Rishon LeZion Hashahar Tower GivatayimHashahar Tower Givatayim Moria Parking JerusalemMoria Parking Jerusalem Park OferPark Ofer Parshkowsky HerzliyaParshkowsky Herzliya Neot Shamir HousingNeot Shamir Housing Ashdod North InterchangeAshdod North Interchange Shafdan Plant ExpansionShafdan Plant Expansion Sharona Parking Kfar SabaSharona Parking Kfar Saba Hayarkon Cemetery Petah TikvaHayarkon Cemetery Petah Tikva Bezalel JerusalemBezalel Jerusalem Harish SternHarish Stern Rubinstein TowersRubinstein Towers Inbar RehovotInbar Rehovot Park Hayam Bat YamPark Hayam Bat Yam Parshkovsky Housing RamlaParshkovsky Housing Ramla Tidhar Givat ShmuelTidhar Givat Shmuel Yavne Malchei BuildingYavne Malchei Building Sea Gate NetanyaSea Gate Netanya Ministry of Justice JerusalemMinistry of Justice Jerusalem Arlozorov 17 Tel AvivArlozorov 17 Tel Aviv Road 77Road 77 Acro BST Tel AvivAcro BST Tel Aviv Gindi Tel AvivGindi Tel Aviv Habarzel 5 Bnei BrakHabarzel 5 Bnei Brak Pisgat Dan Ramat GanPisgat Dan Ramat Gan Salame Building Tel AvivSalame Building Tel Aviv W Hotel Jaffa MalibuW Hotel Jaffa Malibu Kiryat Ata RoadKiryat Ata Road China Civil Petah TikvaChina Civil Petah Tikva Route 6 Tunnel YokneamRoute 6 Tunnel Yokneam Danya Cebus RehovotDanya Cebus Rehovot Electra RamlaElectra Ramla Science Park RehovotScience Park Rehovot Hamashbir LaZarchan JerusalemHamashbir LaZarchan Jerusalem Beit Lissin TowersBeit Lissin Towers Carmei Gat Danya CebusCarmei Gat Danya Cebus Linum Tunnel ModiinLinum Tunnel Modiin Rehasim TunnelRehasim Tunnel Ayalon SouthAyalon South Globus City Kfar SabaGlobus City Kfar Saba
View all projects →

Instructional & field-test videos

Polyester chemical anchor: the complete guide

Everything you need to know about the CT50Pro polyester chemical anchor — 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 a polyester chemical anchor and how does it work?

A polyester-based chemical anchor is a two-component chemical anchoring system consisting of a polyester resin and an accelerator (hardener). As the two components mix inside the static nozzle, a chemical reaction begins immediately, producing a rigid polymer that bonds powerfully to the base material — concrete, blocks, stone and rock.

During installation, the chemical anchor is injected into the drilled hole, after which the threaded rod (ATR) or reinforcing bar is inserted. Once cured and hardened, a solid, reliable connection is formed that withstands heavy loads and applies no expansion pressure to the walls of the hole.

Note: CT50Pro and Chemfix PESF are the same product

CT50Pro is a different trade name for the same adhesive originally sold as Chemfix PESF. If a specification calls for PESF, it is the same material. The only difference is that PESF TOP comes in a cartridge that fits a standard silicone gun.

ADIT CT50Pro — Israel’s best-selling chemical anchor

ADIT CT50Pro is a polyester chemical anchor developed and manufactured by the Israeli company Adit Ltd. For over a decade it has served as the standard and most widely used solution in Israel for anchoring threaded rods and dowels in concrete, blocks and natural stone — combining excellent engineering performance with an unrivaled cost-to-benefit ratio in its category.

Advantages of the ADIT CT50Pro chemical anchor

  • European ETA approval: a chemical anchor that meets the requirements of the stringent European standard.
  • Competitive price: the most cost-effective and economical solution in the quality chemical-anchoring category.
  • Maximum versatility: suitable for use in concrete, stone and solid blocks, and perfect as a chemical anchor for hollow blocks.
  • Fast cure time: can be safely loaded within 8–12 hours at 20°C (and even faster in the Israeli summer).
  • Ease of installation: compatible with professional injection guns and convenient for continuous work.
  • Range of sizes: available in the classic 410 ml cartridge, and in a 300 ml tube version for a silicone gun (PESF TOP).
  • Proven track record: successfully applied in thousands of public and private projects in Israel and worldwide.

Installation stages of a polyester chemical anchor

  1. Drilling — drill a hole to the diameter and depth defined in the manufacturer’s table. In hollow blocks, drill without impact (no hammer action) so as not to crush the internal webs.
  2. Cleaning the hole — use a steel brush and blow out the dust. This is a critical step for optimal bonding of the adhesive to the base material.
  3. Mesh sleeve (blocks only) — in a hollow block, insert a dedicated plastic mesh sleeve before injecting, so the material expands into the cavity and locks behind the web.
  4. Injecting the adhesive — fill the hole from the bottom upwards using a dedicated injection gun and a static mixer.
  5. Inserting the anchor / rebar — insert the threaded rod or rebar with a slight rotating motion to ensure perfect coating and removal of air bubbles.
  6. Curing time — wait according to the ambient temperature before applying load (see the FAQ for details).

Chemical anchor for hollow blocks — the only solution that works

One of the most notable advantages of the CT50Pro is its proven ability to work efficiently and safely even in walls made of hollow blocks (such as Ytong, pumice or black block). Unlike simple mechanical anchors that cannot set inside the hollow cavity and tend to break the thin webs, the chemical anchor flows into the cavity using a dedicated plastic mesh sleeve, expands beyond the mesh and bonds to the block walls from all directions — forming a strong, wide and durable “chemical plug” that cannot be pulled out.

ADIT PESF TOP — the same technology, in a silicone-gun tube

ADIT PESF TOP is essentially the same high-quality polyester adhesive as the CT50Pro, packaged in a compact 300 ml tube that fits a standard silicone gun. It is especially suited to spot work, hard-to-reach locations and small projects — retaining all the performance characteristics, ETA approvals and recognized quality of the CT50Pro in a more accessible format.

Thousands of projects in Israel — CT50Pro in the field

The CT50Pro chemical anchor has proven itself over many years in some of the largest and most complex projects in Israel:

  • Route 20 (Netivei Ayalon): anchoring of signage, electrical and structural infrastructure.
  • Dozens of infrastructure tunnels: withstanding harsh moisture conditions across the country.
  • Hundreds of towers and high-rise buildings: retrofit projects, balcony extensions and dowel anchoring into floors.
  • National infrastructure projects: road paving, bridges, public parking structures, factories and logistics warehouses.
  • Anchoring into blocks: the everyday solution for hollow blocks across tens of thousands of housing units nationwide.

Why choose Adit Ltd. for your chemical anchor?

  • In-depth engineering consultation: certified engineers who advise on choosing the right chemical anchor and perform load calculations.
  • Field training: company representatives come to the site to train the installation team for compliant, safe application.
  • Uncompromising international standards: all products undergo rigorous quality control and hold official CE and ETA approvals.
  • Broad, available stock: fast and direct supply to any location and project in Israel.
  • Continuous technical service: full support before, during and after project completion.

Frequently asked questions

What is the difference between CT50Pro and PESF?
It is the same adhesive under two trade names. The only difference is the packaging: CT50Pro comes in a large 410 ml cartridge for high-volume projects and requires a professional injection gun, while PESF TOP comes in a 300 ml cartridge that fits any standard silicone gun.
When should you choose polyester and when epoxy?
Polyester (CT50Pro) is suitable for uncracked concrete and blocks, at a lower price and with fast curing. If the design requires cracked concrete, seismic loads or heavy loads, an epoxy or hybrid is required: Chemfix100, Chemfix200 or AC500 V4.
Is a chemical anchor really effective in hollow blocks (Ytong / pumice)?
Yes. A chemical anchor for hollow blocks is the safe and only engineering solution that truly works over time. Because the block is hollow inside, conventional metal anchors bear “on air” and tend to crush the delicate webs. The chemical anchor fills the cavity using a dedicated mesh sleeve, hardens into a wide “plug” behind the web, and grips the block without applying destructive expansion forces.
How do you install a chemical anchor in a hollow block?
Drill without impact (no hammer action) so as not to crush the internal webs. After cleaning the dust, insert a plastic mesh sleeve (basket) into the hole. Inject the chemical anchor into the sleeve until full, then insert the bolt with a twisting motion. The mesh causes the material to seep sideways, expand into the cavities and lock the anchor completely in place.
How long does a polyester chemical anchor take to cure before it can be loaded?
A polyester system has very fast working (gel) and cure times. At about 20°C the material begins to harden within a few minutes, and load can be applied after only about one hour for light applications, with full loading typically within 8–12 hours. On hot summer days curing accelerates; in winter you must wait longer. Always refer to the cure table printed on the cartridge.
Can polyester adhesive be used in a wet hole or wet concrete?
CT50Pro is approved for work in a wet hole. It excels in dry concrete and ordinary substrates, but for water-saturated drilling, underwater work or extreme moisture, use a more advanced chemical anchor such as hybrid vinylester (Chemfix200) or pure epoxy (Chemfix100), which are specially approved for wet concrete.
What is the difference between a chemical anchor and a steel wedge (drop-in) anchor?
A wedge anchor is made of metal and relies on an expansion mechanism, so it cannot be installed too close to concrete edges and is unsuitable for blocks. A chemical anchor works on the basis of a polymer bond — it applies no expansion pressure to the walls, allowing work close to edges and being completely safe in blocks and stone.
How do you store a chemical anchor so it does not dry out after partial use?
The material inside the cartridge does not dry out as long as it has not been mixed in the nozzle. When a job is finished, leave the used nozzle attached — it acts as a natural plug. Before the next use, unscrew the dried nozzle, fit a new clean mixing nozzle, and the material flows like new. Store in a cool, shaded place (5°C–25°C).
What does the ETA approval on the chemical anchor mean?
ETA (European Technical Assessment) is the most stringent official European approval standard for chemical and mechanical anchors. Its presence on the CT50Pro confirms the product was tested in independent laboratories and met all guaranteed load specifications, allowing engineers to design and use it in official and public projects with full confidence.

Not sure whether you need polyester or epoxy? Tell us about the base material and the load — our engineers will recommend the right adhesive at the right price.

Talk to our engineers