Conical Mandrel Tester


Conical Mandrel Tester

The varying mandrel diameter (3.2 mm – 38.1 mm) stretches a coating

through a gradient of distension, allowing precise determination of adhesion characteristics.

● Panels up to 20 cm and 1.6 mm thickness can be tested

● Durable sturdy stainless steel mandrel


– Cover test panel with paper between mandrel and draw bar and clamp the probe.

– Fold the panel around the cone by using the manually operated arm.

– Bend uniformly at 180 degrees within 15 seconds.

– Remove panel and examine the coating for cracks.

– Mark the point at which the cracking stops.

– Measure the distance from the farthest end of the crack to the small end of the mandrel.

– Appropriate calibration curves also permit determination of the elongation values of the paint film.


ASTM D 522  Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings

ISO 6860  Paints and varnishes – Bend test (conical mandrel)

Ordering & Technical Specifications

Cat.No. Dimensions Net Weight Shipping weight
JR-269 340×120×300 mm 7.5 kg 10 kg

Comes complete with

Stainless Steel Conical Mandrel Tester

Operating instructions

Carrying case