Water Break Test

TASK 51-77-11-700-001-A
Water Break Test

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	PAPER - ABRASIVE (GRADE 400)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.14SBA1)	Textile-Lint free Cotton -
No specific	demineralized water

3. Job Set-up
Subtask 51-77-11-010-051-A

A. There is no special job set-up for this task.

4. Procedure
Subtask 51-77-11-750-050-A

A. Do the Water Break Test
(1) Dry the repair area with a clean Textile-Lint free Cotton - (Material No.14SBA1) .
(2) Spray a thin coating of demineralized water on the repair area.

NOTE: A thick coating of demineralized water will not show all the defects on the repair area.

(3) Inspect the wetted surface to make sure the water forms a thin continuous coating.
(4) A defect is shown when the demineralized water is repelled and forms into beads of water.
(5) If necessary, rub down the repair area with PAPER - ABRASIVE (GRADE 400) to remove the defect.
(6) If necessary, clean the repair area with demineralized water and a lint-free cloth.
(7) If necessary, repeat the water-break test until there are no defects on the repair area surface.
(8) Dry the repair area with a clean Textile-Lint free Cotton - (Material No.14SBA1) .

NOTE: On completion of the water-break test, do not touch the repair area. Do the repair quickly to prevent contamination.

(9) At the repair area apply new paint as necessary (Ref. SRM 51-75-12).

[Rev.10 from 2021] 2026.04.01 01:34:52 UTC