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SF
SF379
Product Features & Attributes
This paint film chalking tester is used to determine the chalking and weathering degree of paint films and similar coatings. It is ideal portable testing equipment for coating aging performance in paint manufacturers, quality inspection institutions and research universities.
Test Principle: Using the Kempf method, a specified load is applied to the coated test panel under controlled conditions. A paper print is taken and compared with standard samples to determine the chalking grade.
Structure:
Handle: Applies pressure
Tension device: Pressure adjustment
Base: Supports the unit
Tray: Holds the test panel
Post: Connection support
Movable frame: Pressure transmission
Technical Features:
Adjustable pressure range 50-250N for different coating types
Probe rubber hardness 60±5 for consistent contact
Probe diameter 40mm for standard contact area
Simple operation, portable design for lab and field use
Simple structure, easy maintenance
Test Procedure:
Prepare test panel according to standard requirements
Adjust pressure range (0-50N, 0-100N, 0-150N, 0-200N, 0-250N)
Place panel on tray, soak in room temperature water for 4 minutes
Remove moisture from paper with filter paper (glossy side facing coating)
Press evenly to scale value, lift handle
Compare paper with standard samples to determine chalking grade
Precautions:
Clean instrument before and after use to avoid oil contamination
Do not loosen components to maintain accuracy
Store in dry, ventilated area after cleaning
Available in different specifications: different pressure ranges (50-250N, 50-300N, etc.), different probe sizes (40mm, 50mm, etc.), and different rubber hardness (60±5, 70±5, etc.) to suit various coating types and testing standards.
Mainly used in paint manufacturers, coating contractors, quality inspection institutions, research universities, automotive coating industry, and more for paint film chalking and weathering testing.
