Dual channel wet scrubbing tester

The painted surface needs to be tested for scrub resistance using brushes, sponges, or other methods. The instrument used in the scrub resistant experiment generates a repeated, controlled condition to simulate daily usage or wear patterns.

The scrub resistance tester can measure the washability and performance related to the impact on the wear resistance of coatings. Reproduction testing can also be used to determine the performance testing of detergents.

• Feature: Parallel testing of two brushes on the connecting arm

• Air cooled electric motor: ensuring high reliability

• Peristaltic pump: does not produce reactant contamination（5002、5007Except for models)

• Five digit preset counter: automatically stops after reaching the preset number of times the instrument is started

• Adjustable to comply withDIN、ISOandASTMTesting standards

The liquid solution is pumped onto the brush from a detachable container installed on the side of the instrument. During the testing process, the pump can be turned on or off and the flow rate of the liquid can be precisely adjusted.

Standard:

ASTM D 2468, D 3450, D 4213,D 4828

DIN EN 53778*, 13 300

ISO 11998

DIN ISOStandard:

EN ISO 11998andDIN EN 13300Standard (Alternative)DIN 53778Standard)

Described the evaluation of coating scrub resistance by cleaning or rubbing the surface. Construction on metal foil and then drying under standard conditions. To describe the cleanability, the tested surface was coated with the specified pollutants before starting the test.

DIN 53778（2007year8Month revoked)Dispersible coating

Cleanability: The testing area must be free of contamination and washability:1000Assessment of Friction Resistance after Ring Friction:5000Evaluation after circular friction

The test is conducted using a bristle brush and cleaning solution is pumped in. Assessment is conducted through visual observation.

ISO 11998

ISOThe testing method briefly describes the scrubbing test. This test uses“3M Scotch Brite 7448”Pad, manually add cleaning solution before starting the test.200Evaluate after circular friction. The anti scrubbing assessment is conducted by calculating the quality loss.

DIN EN 13300

This standard describes various testing methods for water-based coating materials and coating systems for interior walls and ceilings. One of the quality standards mentioned is in accordance withEN ISO 11998The method is to conduct a moisture resistance test. Meanwhile, the grading scale based on friction is used in the subsequent classification.

ASTMstandard

The design of the dual channel wet scrubbing tester meets the following four criteriaASTMStandard:

ASTM D 2486

The main purpose of this method is to test the scratch resistance of interior wall paint. The paint applied on the black plastic board is allowed to be removed. Rub the plastic board with a nylon brush until a problem occurs. Friction scrubbing media is used to accelerate the test during testing.

ASTM D 3450

This method determines the convenience of removing dust stains from internal coatings. Drag the paint onto a black board and allow it to dry for seven days. Add specific dust abrasives. Use fiber sponge, add friction or non friction medium, scrub100Repeatedly. By measuring before and after testingCIEThe reflection coefficient is used to evaluate the removal status of dust stains.

ASTM D 4213

The purpose of this method is to measure abrasion resistance. giveASTM D 2486The main difference is that the abrasion resistance is determined by comparing the weight loss of the paint film with the corresponding standard calibration plate. Friction is applied simultaneously to the test board and standard board. Friction equipment isScotch-BriteTM 7448Friction plate.

ASTM D 4828

The convenience of removing dust and stains from internal coatings in this test. Apply the coating onto a black plastic board and dry for seven days. Can use user specified dust orASTM D 3450The dust described in. Use the liquid or dust remover specified by the user and rub the plastic board with a sponge100Repeatedly. Use a gloss meter or colorimeter for evaluation.