เครื่องทดสอบความยืดตัวของสี (Conical Mandrel ฺBend Tester) มาตรฐาน ASTM D522 ,ISO6860

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

LR-G003  ASTM D 522  ISO 6860 Conical Mandrel Tester

Procedure

- 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.

LR-G003  ASTM D 522  ISO 6860 Conical Mandrel Tester

Standards

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