DeFelsko PosiTest ATM20 Manual Adhesion Tester

DeFelsko PosiTest ATM20 Manual Adhesion Tester

In industries such as shipbuilding, steel structure fabrication, automotive painting, and construction, the adhesion of a coating to the material surface is a decisive factor determining the protective capability and lifespan of the structure. The DeFelsko PosiTest ATM20 adhesion tester (from the renowned brand DeFelsko – USA) is a standard manual pull-off equipment, delivering today’s most precise, durable, and reliable measurement results.

The DeFelsko PosiTest ATM20 belongs to the category of pull-off adhesion testers for coatings. The device operates by utilizing hydraulic pressure to pull off a 20mm dolly that has been securely bonded to the coating surface using a specialized adhesive.

The pulling force required to detach the coating is displayed directly on the device’s hydraulic gauge. This is a standard destructive testing method, perfectly complying with strict international certifications such as ASTM D4541, ISO 4624, and TCVN.

Key Features of the DeFelsko PosiTest ATM20

💡 Smooth Manual Hydraulic Pump System

The DeFelsko PosiTest ATM20 is equipped with a high-quality hydraulic pump, allowing technicians to increase the pulling pressure continuously and smoothly with a simple hand stroke. The safe pressure-release valve system helps control the pulling force smoothly without jerking, ensuring the objectivity of measurement results.

💡 Premium and Precise Pressure Display Gauge

The instrument utilizes a large, easy-to-read hydraulic pressure gauge equipped with a maximum indicator (Max indicator). This pointer stops exactly at the position of the peak pull-off force, allowing users to easily record accurate results without worrying about value drift.

💡 20mm Dollies Optimized for Flat Surfaces

The ATM20 version comes supplied with standard 20mm diameter aluminum dollies. This size is highly ideal for testing coating adhesion on flat metal surfaces, steel structures, industrial tanks, or coatings with medium-to-high bond strength.

💡 Outstanding Durability in Harsh Environments

The housing is constructed from premium materials featuring high impact and scratch resistance. The entire kit and accessories are neatly organized in a specialized heavy-duty plastic carrying case, enabling engineers to effortlessly carry it to job sites, offshore rigs, or shipyards without risk of damage.

Technical Specifications:

• This equipment is used to test the adhesion of paint or coating layers on surfaces by applying hydraulic pull-off force.
• Designed to operate effectively both in laboratory environments and outdoor job sites.
• Features allow users to monitor and adjust the pulling force, ensuring full compliance with international testing standards.
• The PosiTest ATM20 is capable of storing up to 200 measurement results, features excellent weather resistance, and is equipped with an IP65 protection rating.
• Measurement resolution: 1 psi (0.01 MPa)
• Accuracy: ± 1% across the entire measurement range.

• Weight: 12 lbs / 5.5 kg
• Carrying Case Dimensions: 43 x 33 x 15 cm

Standard Kit Includes:

• PosiTest ATM20 manual adhesion tester with LCD display.
• 20 mm aluminum test dollies (quantity of 20).
• Abrasive pad
• Cutting tool
• Adhesive (glue)
• Cotton swabs
• Instruction manual
• Manufacturer’s calibration certificate
• Carrying case
• 3 AAA batteries
• USB cable

Practical Applications of the PosiTest ATM20

Thanks to its exceptional durability and high technical-legal data value, the PosiTest ATM20 is widely utilized in:

• Steel Structure & Infrastructure Inspection: Verifying the bond strength of anti-corrosion coatings on steel bridges, high-voltage towers, and pre-engineered steel buildings.
• Shipbuilding & Oil & Gas Sector: Evaluating coating quality on ship hulls, decks, and high-pressure offshore oil pipelines.
• Paint & Coating Manufacturing: R&D and QC laboratories of paint factories use the device to test formulations and audit output product quality.
• Project Supervision & Auditing: Consultant and supervision entities utilize the tool for on-site verification of wall paint and industrial warehouse Epoxy flooring adhesion prior to project handover.