QA/QC › Painting & Coatings › Dry Film Thickness

Test-report · QC-PNT-TST-001

Dry Film Thickness (DFT) Test Report

6 checkpoints across 3 sections. After paint application and drying; DFT testing mandatory before project completion

6 Checkpoints

3 Sections

Per 100m² of painted area; minimum 5 test points

QC Engineer, Painting Contractor

S.No.	Checkpoint	IS Requirement
A. TEST PROCEDURE & EQUIPMENT
A1	DFT measurement per IS 101; electronic gauge used; calibrated within last 12 months Acceptance: Gauge: ±10% accuracy; substrate temperature measured; probe perpendicular to surface	Cl. 401 — Test standard
B. TEST RESULTS
B1	Test point 1: DFT measured (microns); location documented Acceptance: Reading to nearest 10 microns; minimum ≥60 microns typical for interior emulsion	Cl. 401 — Individual reading
B2	Test points 2-5: DFT measured at distributed locations; variation noted Acceptance: 5 points per 100m² minimum; areas include corners, edges, center; readings logged	Cl. 401 — Multiple readings
B3	Average DFT calculated; minimum, maximum, standard deviation recorded Acceptance: Average ≥60 microns; variation ≤±20% from average; consistency verified	Cl. 401 — Statistical analysis
C. ACCEPTANCE CRITERIA & COMPLIANCE
C1	Average DFT ≥ specification minimum (typically 60 microns for emulsion); all points logged Acceptance: Average ≥60 microns PASS; <60 microns FAIL; touch-up for thin spots <50 microns	Cl. 401 — DFT acceptance
C2	Uniformity check: No point more than ±20% below average; indicates consistent application Acceptance: Variation ≤±20% PASS; >±20% indicates thin/thick areas requiring correction	Cl. 401 — Application uniformity

A. TEST PROCEDURE & EQUIPMENT

A1DFT measurement per IS 101; electronic gauge used; calibrated within last 12 months

Cl. 401 — Test standard (IS 101)

✓ Gauge: ±10% accuracy; substrate temperature measured; probe perpendicular to surface

B. TEST RESULTS

B1Test point 1: DFT measured (microns); location documented

Cl. 401 — Individual reading (IS 101)

✓ Reading to nearest 10 microns; minimum ≥60 microns typical for interior emulsion

B2Test points 2-5: DFT measured at distributed locations; variation noted

Cl. 401 — Multiple readings (IS 101)

✓ 5 points per 100m² minimum; areas include corners, edges, center; readings logged

B3Average DFT calculated; minimum, maximum, standard deviation recorded

Cl. 401 — Statistical analysis (IS 101)

✓ Average ≥60 microns; variation ≤±20% from average; consistency verified

C. ACCEPTANCE CRITERIA & COMPLIANCE

C1Average DFT ≥ specification minimum (typically 60 microns for emulsion); all points logged

Cl. 401 — DFT acceptance (IS 2395)

✓ Average ≥60 microns PASS; <60 microns FAIL; touch-up for thin spots <50 microns

C2Uniformity check: No point more than ±20% below average; indicates consistent application

Cl. 401 — Application uniformity (IS 2395)

✓ Variation ≤±20% PASS; >±20% indicates thin/thick areas requiring correction

Inspection Sign-Off

PASSED

PASSED WITH TOUCH-UP AREAS

FAILED — RE-PAINT

Test Conducted By

Name / Sign / Date

Reviewed By

Name / Sign / Date