दृढवास्तुके वा रूपे वालुकामिश्रं जतु गान्धारपङ्को वा तप्तोऽवतिष्ठते ॥ कZ_०२.१४.३५ ॥
dṛḍhavāstuke vā rūpe vālukāmiśraṃ jatu gāndhārapaṅko vā tapto 'vatiṣṭhate
Sa anyong may matibay na estruktura/paghuhulma, ang dagta na hinaluan ng buhangin, o ang “putik/paste ng Gāndhāra,” ay nananatiling lantad kapag pinainit.
Heating changes the behavior of non-metallic fillers (resins/pastes) and reveals them quickly, enabling fast enforcement during inspections.