Thailand · Metalwork

Thai Buddhist Bronze Casting

การหล่อพระพุทธรูป (Kan Lo Phra Phuttharup)

Lost-wax (cire perdue) casting of bronze Buddha images and ritual objects, a royal court craft tradition documented under Chang Lor (casting craftsmen) in the Chang Sip Moo system (DCP/Thailand Foundation 2025). Large Buddha images use modular casting — sections cast separately and welded. A living tradition practiced at royal temple foundries and specialist workshops.

Risk level: Endangered · Not Listed — documented in DCP Chang Sip Moo framework (Thailand Foundation 2025)

Alternate Names
Thai bronze casting; Chang Lor (royal court casters); Buddha image casting
Geographic Center
Bangkok (royal temple foundries); Chiang Mai; Phitsanulok (Phra Buddha Chinaraj — historic center)
Community / Ethnic Group
Thai artisan community (Chang Lor — hereditary casting craftsmen); Buddhist monk community at royal temple foundries
Estimated Origin
Sukhothai Kingdom (13th century); continuous practice to present day across all Thai kingdoms
Cultural Function
Buddhist devotional objects — Buddha images for temple installation; royal merit-making; national religious identity; architectural ceremonial bell casting
Primary Materials
Bronze alloy (copper 80-90% + tin 10-20%; sacred images add gold and silver — ratio considered spiritually significant); wax (for model); clay (for mold); charcoal
Primary Tools
Crucible and furnace (charcoal or electric); wax modeling tools; investment mold clay tools; chisels and files for finishing
Process Overview
Build clay core → model in wax → invest in clay mold → heat to expel wax → pour molten bronze → cool → break mold → clean and finish → gild or lacquer.
Traditional Applications
Temple Buddha images; royal merit-making; ceremonial bells; architectural temple fittings; royal palace decoration
Contemporary Applications
Contemporary temple construction; collector devotional objects; SACIT promoted craft export; limited contemporary art
Notable Practitioners
Royal temple foundry craftsmen (Bangkok — names not publicly disclosed per royal protocol); Phitsanulok foundry masters; Chiang Mai bronze workshop masters
Key References
Thailand Foundation (2025). Thai Craftsmanship — Chang Sip Moo section. thailandfoundation.or.th — DCP (2016). Thai Traditional Craftsmanship. Bangkok.
Verification Status
Unverified

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