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DeFelsko PosiTest AT-A Automatic Adhesion Tester
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(62) 778 408 6403
(62) 815 3611 0114
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DeFelsko PosiTest Automatic Adhesion Tester AT-A is an innovative instrument that combines user convenience and repeatability for quality inspection on adhesion of a coating or several coated samples. This adhesion tester is applicable for any paint product on any surface and automatically assess the minimum tensile stress needed to conforms to international standards including ASTM D4541/D7234, ISO 4624/16276-1, AS/NZS 1580.408.5 and others.
Thanks to its electronically controlled hydraulic pump action, it applies smooth and continuous pull-off pressure that will greatly reduces user effort and the risk of influencing the pulling process. Compared to other method, DeFelsko PosiTest maximizes the tensile stress, as the test is done by securing loading fixtures (dollies) perpendicular to the surface of a coating with an adhesive. Then the DeFelsko PosiTest is attached to the loading fixture and is then aligned to apply tension perpendicular to the test surface. The force that is applied gradually increases and is monitored until a plug of coating is detached, or a previously specified value is reached
Your investment on DeFelsko Automatic Adhesion Tester PosiTest AT-A will allow you to test indoors and outdoors surface and in all types of weather. BE advised that after the pull-off test, the dolly and coated surface should also be examined as many National and International standards such as ASTM D4541 and ISO 4624 do require the nature of the fracture to be recorded. DeFelsko PosiTest are applicable to test rugedness of coating on concrete, boiler pipes, steel structure, tubings (depends on the curvature and surface uniformity), durability of painting or protective flim, remaining life assesment of coated steel prducts and many more.
DeFelsko PosiTest Automatic Adhesion Tester AT-A features:
- Measures the force required to pull a specified test diameter of coating away from its substrate using Electronically controlled hydraulic pump for smooth and continuous pull-off pressure.
- Impact and scratch resistant color touch screen with keypad for operation with or without gloves
- Built-in rechargeable battery performs over 200 tests per charge. Continue testing with AC power while the battery recharges.
- Environmentally sealed enclosure – weatherproof, dustproof and shockproof - meets or exceeds IP65
- Rubberized, shock absorbing grips provide a stable, skid-resistant footing
- Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces diameter of 10, 14, 20 or 50 mm that maximize capability and measurement resolution across a wide range of bond strengths.
- User selectable measurement units: psi (pounds per square inch), MPa (Megapascal), Nmm2 (Newtons per millimeter square) or Newton (force)
- User adjustable pull rate, pull limit and hold time with Rotating display for horizontal and vertical use
- Pressure system is calibrated and certified to ± 1% accuracy using a NIST traceable load cell
- Conforms to international standards including ASTM D4541/D7234, ISO 4624/16276-1, AS/NZS 1580.408.5 and others
- Record the results as pass/fail and the nature of fracture - cohesive, adhesive and glue failures
- Wirelessly () connect to your smart device using our free PosiTector App (Apple iOS and Android)
- Internal memory stores maximum pull-off pressure, rate of pull, test duration and dolly size for 100,000 pulls in up to 1,000 batches
SPESIFIKASI DeFelsko PosiTest AT-A Automatic Adhesion Tester
DeFelsko PosiTest AT-A Automatic Adhesion Tester Specification :
|
Order Code |
ATA 20 |
ATA 50 |
ATA50T |
ATA50C |
|
Dolly size and stand-off* |
20 mm |
50 mm |
50x50 mm |
50 mm |
|
Typical applications |
Higher bond strength coating on metal |
Lower bond strength coatings on wood, concrete and plastic |
BS EN 12004-2 Comentitious adhesives for tiles |
ASTM C1583 Concrete surfaces and overlays |
|
Range |
0.7 – 24 MPa 100 – 3500 psi 100 – 7550 N |
0.4 – 3.8 MPa 50 – 560 psi 100 – 7550 N |
0.4 – 3.033 MPa 50 – 440 psi 100 – 7550 N |
0.4 – 3.8 MPa 50 – 560 psi 100 – 7550 N |
|
Resolution |
0.01 MPa (1 psi) |
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|
Accuracy |
± 1% Full scale |
|||
|
Included dollies |
Ø 20 mm (qty 20) Aluminum |
Ø 50 mm (qty 8) Aluminum |
50x50 mm (qty 4) with threaded post steel |
Ø 50 mm (qty 4) with ≥ 25 mm thickness steel |
|
Cutting tool |
20 mm hole saw |
50 mm hole saw |
-- |
50 mm diamond grit hole saw with arbor |
* Optional 20mm/50mm/50 mm C1583/50 mm Tile Conversion Kits allow each model to be used with alternative dolly sizes. Custom 10 and 14 mm dollies are available for special applications (compatible with 20 mm stand off).
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