PosiTest® AT Series

Pull-Off Adhesion Testers

Measures the adhesion of coatings to metal, wood, concrete and other rigid substrates

Measures the force required to pull a specified test diameter of coating away from its

substrate using hydraulic pressure.

Feature

·        Environmentally sealed enclosure – weatherproof, dustproof and shockproof – meets or exceeds IP65

·        Inexpensive, single-use dollies eliminate cleaning for re-use and can be kept as a permanent record

·        Conforms to international standards including ASTM D4541/D7234, ISO 4624/16276-1, AS/NZS 1580.408.5 and others

·        10, 14, 20 or 50 mm dollies maximize capability and measurement resolution across a wide range of bond strengths

·        Calibrated and certified to +/-1% accuracy using a NIST traceable load cell

Self-Alignment Feature

The PosiTest Adhesion Tester compensates for misalignment. The self-aligning, quick-coupling actuator and spherical articulating

dolly head enable uniform distribution of the pulling force over the surface being tested, preventing a one-sided pull-off.

PosiTest AT-M

Manual

·        Manual hydraulic pump designed to apply smooth and continuous pressure with a single stroke

·        Pull Rate Indicator to manually monitor and adjust the rate of pull

·        Internal memory stores maximum pull-off pressure, rate of pull, test duration and dolly size for up to 200 pulls

·        Compatible with PosiSoft desktop software

Ordering Guide

Manual Models

ATM20

0.7-20 MPa

100-3000 psi

ATM50

0.4-3.5 MPa

50-500 psi

Automatic Models

ATA20

0.7-24 MPa

100-3500 psi

100-7550N

ATA50

0.4-3.8 MPa

50-560 psi

100-7550 N

Dolly

20 mm

50 mm

Typical Application

Coatings on metal

Coatings on wood, concrete and plastic

Resolution

0.01 MPa (1 psi)

Accuracy

+/-1% Full Scale

*Optional 20 and 50 mm Accessory Kits allow each model to be used with

aternative dolly sizes. Custom 10 and 14 mm dollies are available for special

applications.