Customer

Case Study

Question

Apparatus

Confidential (Yachtbuilder)

Test and quantify the wear on yachtcoatings caused by fendermaterial.

AB6000 TQC Scrub Abrasion and Washability Tester
AB5020 Universal Material Holder Tool
+ additional weights

Procedure

Case Study

Yachtbuilder was experiencing customers claims about marks and wear in the topcoat of their yachts located
at the positions of the fenders. It was suspected that either the fender material or the plasticizers in the fender
material was somehow aggressive to the yacht’s topcoat.

Two different trays were used to perform two tests simultaneously (wet and dry) .

Test panels, coated with the proper topcoat were positioned at the bottom of the scrub tester.

The tools holders were each equipped with the fender material and an additional weight of 1000 gram.

One test was performed dry.

One test was performed with dosing sea (salt) water at rate of 0.2ml/min .

Stroke length was set at 300mm.

Stroke speed was set at 30 strokes per minute.

Result

Case Study

Clear signs of wear are observed after 2000 strokes with both the wet and dry test. It was shown that the wet test showed
more severe results than the dry test. Multiple tests showed that the AB5020 provides reproducible results and therefore it
has been proven the TQC scrub test performs well as system to test and quantify the wear resistance of yachtpaints.