Cold Apply

Module from the Refractory and Insulation Curriculum curriculum.

Module 8 - Cold Insulation Installation · Learning Objectives · 1. Select closed-cell foam (cellular glass, polyurethane) for cryogenic · 2. Apply vapor barrier: polymer wrap on warm (ambient) side · 3. Minimize penetrations in vapor barrier (condensation = ice buildup) · 4. Apply expansion joints for large thermal contraction · 5. Seal flange pads and penetrations with butyl sealant · Cold Insulation Material Selection

Service T	Material	Vapor Barrier	Thickness (typical in)	Jacketing	Notes
-320F LNG	Cellular glass (Foamglas)	Butyl laminate	5-8	Aluminum jacket	Best cryo
-260F LIN/LAR/LOX	Cellular glass or polyiso	Butyl	4-6	Aluminum	Insulate + vapor barrier
-200F propane/ethylene	Polyiso or polyurethane	Polyamide film	3-4	Aluminum	Common refrigerants
-80F chillwater	Polyurethane	Vapor barrier wrap	2-3	Painted steel	HVAC-like
+32F chilled water	Rubber foam (Armaflex)	Integral	1-2	Paint	Condensate control

Source: Refractory_Insulation_Curriculum_v1.xlsx · Sheet: Cold Apply

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