Penelitian pengaruh sudut kemiringan rak pada uji cuaca luar terhadap sifat fisis ketahanan kikis, berat jenis sol karet cetak sepatu olah raga

The aim of this research is to find out the effect of weather exposure on the physical characteristic of the abrasiti on and the densytas of the quality of the molding rubber of the sport shoes. In this research, the samples of the experiment are installed on shelves which each of the shelve has an a 00,150,30, and 450 angle, by directly exposure to the out door weather. The samples of the research were tested to know their physical proper-ties. It was done once in every 40n days. Testing for the abrasition and densytas on rubber and plastic physical and chemist Laboratory IRDLAI, YOGYAKARTA, by reference SNI 0078-1989. A. The results of physical tests were analysed using T test. The result of the research showed that the different angles of the selves did not affect the abrasition as well as the densytas significantly.