1. Function and Application
The Du Pont Style Falling Dart Impact Tester is designed to evaluate the impact resistance of organic coatings and surface materials. It is commonly used to establish quality standards for resistance to surface damage and penetration of substrates, including plastics, resins, composites, fiberglass, and sheet metals.
The tester operates by guiding a cylindrical weight down a vertical drop tube, striking an impact dart (punch) resting on the test sample. The drop height is adjustable using a pin-handle mechanism, allowing controlled impact energy for reproducible testing.
It is suitable for automotive, aerospace, and materials testing laboratories where consistent evaluation of coating or substrate durability is required.
2. Applicable Test Standards
Toyota TSL 5101G (Section 3.15) – Automotive impact testing of coated surfaces
Du Pont Coating Impact Test Guidelines – Standard testing of organic coatings
Customizable Free-Falling Impact Tests – Configurations available to meet other OEM or laboratory-specific standards
3. Technical Specifications
| Item | Specification |
|---|---|
| Test Type | Falling dart impact testing of coatings and substrates |
| Construction | Aluminum and stainless steel components |
| Drop Tube | Vertical, 475 mm graduated guide tube |
| Impact Dart / Punch | Included, customizable geometry available |
| Drop Weight | Standard 800 g; other weights available upon request |
| Sample Holder | Supplied; alternative holders available |
| Operation | Manual lift and release of drop weight via pin-handle |
| Surface Compatibility | Plastics, resins, composites, fiberglass, sheet metals, coated surfaces |
| Finish | Powder-coated and anodized surfaces for durability |
| Warranty | 1 year manufacturer’s warranty |
4. Features and Advantages
High Precision Impact Testing: Graduated drop tube allows reproducible and adjustable impact energy.
OEM Compliant: Meets Toyota TSL 5101G Section 3.15 standard.
Customizable Configuration: Impact dart, specimen holders, and drop weights can be tailored for specific test requirements.
Durable Construction: Aluminum and stainless steel frame with powder-coated and anodized finishes.
Versatile Applications: Suitable for plastics, composites, coated metals, and other organic material surfaces.
Simple Operation: Manual pin-handle allows controlled and repeatable drop.
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