Test Methods

Flexibility

The Flexibility test examines the resistance of the coating to bending of the substrate.

In the field, pipeline coatings may be subjected to bending forces as a result of bending of the pipe prior to installation, deformation during service or surfaces that are subject to movement, such as the floors of some storage tanks. The coating’s ability to bend with the substrate and remain a smooth continuous coating film is a vital property. In addition to the degree of bend, the temperature of test is also varied to better simulate field conditions as appropriate.
  • Charter Coating’s Flexibility Test setup
  • Flexibility Test Setup
  • Charter Coating’s Flexibility Test setup
  • Charter Coating’s Flexibility Test setup
  • Charter Coating’s Flexibility Test setup
Charter Coating’s Flexibility Test setup

Bending Mandrel:

Various radii of mandrels available
Cylindrical mandrel diameters: 2, 3, 4, 5, 6, 8, 10, 12, 16 mm (ASTM D522 Method B, ISO 1519)

Test Capabilities:

Test temperatures can range from -40 ° (-40 °) to 25 °C (77 °F) or modified as requested

Test Methods:

CSA Z245.20, Section 12.11
ISO 1519
ISO 21809
NACE TM0304, TM0404, SP0394
ARAMCO specifications

Sample Requirements:

1” x 8” (25 mm x 200 mm) one-side coated panels (CSA Z245.20, ISO, NACE and ARAMCO)
4” x 6” x 1/32” (100 mm x 150 mm x 0.8 mm) one-side coated panels (ASTM D522)

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