Arti dan Tujuan
5.1 Cat kering sering kali bersentuhan dengan dirinya sendiri, terutama di bidang pintu dan jendela, and can sometimes stick to itself (block) depending on its hardness, tekanan, suhu, humidity and length of time the surface has been in contact. This rigorous test method can be used to subjectively compare and evaluate the adhesion resistance of paints.

ASTM D 4946-89-2017 Ketahanan Adhesi Pelapis Arsitektur

Ruang lingkup
1.1 This test method covers an accelerated procedure for assessing the face-to-face adhesion resistance of coatings for trade sales. This should not be confused with anti-adhesion test method D3003, which involves blocking of industrial coatings on metal substrates, nor with test method D2793, which specifically deals with wood product finishes and reports results on a satisfactory or unsatisfactory basis, rather than by the degree of blocking tendency as in this test method.

1.2 Values expressed in SI units of measurement shall be considered as standards. Nilai yang diberikan dalam tanda kurung hanya untuk referensi.

1.3 Standar ini tidak dimaksudkan untuk mengatasi semua masalah keselamatan, jika ada, terkait dengan penggunaannya. Pengguna standar ini bertanggung jawab untuk menetapkan praktik keselamatan dan kesehatan yang sesuai dan menentukan penerapan pembatasan peraturan sebelum digunakan..