<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31317822</termId><termName>chalking</termName><termType>PT</termType><termNote><![CDATA[ The mechanism of "chalk" formation in the deterioration of paints or plastic triggered by oxidative degradation of the binder exposing a layer of pigment or filler. The process results in a dry, powdery surface appearance.   ]]></termNote><termCreatedDate>2026-03-30 20:25:36</termCreatedDate><relation><relationType>UF</relationType><termId>31317823</termId><termName>chalked</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31304837</termId><termName>surface or structural changes</termName><termType>PT</termType></relation></term>  </Zthes>