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Cometech QC-305 Spray Tester | Textile Surface Water Resistance (Spray Rating)
- Spray tester for evaluating surface water resistance of textiles with or without waterproof treatment.
- Test method: clamp specimen at 45°, spray 250 ml water onto the center within 25–30 seconds, then compare wetting to standard rating levels.
- Simple, repeatable setup for routine QC of water-repellency finishes and surface wetting behavior.
- Compact bench unit with standardized specimen holder geometry.
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Overview
Cometech QC-305 Spray Tester evaluates the surface water resistance (wetting resistance) of textile materials. The specimen is clamped at a 45-degree angle, water is sprayed onto the fabric surface using a defined volume and time, and the wetting appearance after spraying is compared against standard classification levels. This tester is commonly used for checking the performance consistency of waterproof and non-waterproof textile surfaces in production and quality labs.
Technical Specifications
Test method (spray procedure)
- Clamp the textile specimen on the holder at a 45° angle.
- Open test area approximately Ø150 mm.
- Position the sprayer above the specimen center at about 150 mm distance.
- Spray 250 ml water onto the specimen surface within 25–30 seconds.
- Evaluate wetting condition and compare to the applicable standard classification levels.
Core specifications
| Model | QC-305 |
|---|---|
| Specimen size | 18 × 18 cm |
| Test opening / holder diameter | Ø150 mm |
| Specimen holder angle | 45° |
| Nozzle-to-specimen distance | 6 in |
| Water volume | 250 ml |
| Spray time | 25–30 sec |
| Machine dimensions (W × D × H) | 30 × 30 × 65 cm |
| Machine weight | 9 kg |
Industry
- Textile.
Support materials
- Test video, teaching material, SOP, and test case (availability depends on configuration and region).