PVA (FDM) — Properties & Data | MatWorld

PVA (FDM)

PVA printed by fused deposition modeling is a water-soluble thermoplastic extruded from filament, used mainly as a sacrificial support material rather than for structural parts. It is usually run through a second nozzle alongside a structural thermoplastic, so supports can be printed in contact with complex geometry. It absorbs moisture readily, so filament must be kept dry to avoid bubbling, stringing and rough surfaces. After printing, the part is soaked in water and the PVA dissolves, leaving surfaces free of the marks left by mechanical support removal. It is used for supports under overhangs, inside internal cavities and in interlocking assemblies that cannot be cleaned out by hand.

supports under overhangssupports inside internal cavitiessupports for interlocking assembliessupports for complex geometry

Compliance & Regulations

?UL 94?ITAR?EAR?ISO 10993?Conflict Free?FDA?RoHS?REACH

PVA/PVA (FDM)

Conditions

UltiMaker PVA Bambu Lab Bambu PVA

Measured as printed

Each row is one condition this material was measured in. Its values and curves are in the tables and charts below, labelled with the condition; the ranges here span that row's own cited values and are never averaged across rows.

Condition	Density (kg/m³)	Values	Curves
UltiMaker PVA	1230	3	0
Bambu Lab Bambu PVA	1270	3	0

Units:

si imperial

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Statistic

Condition

Source

Specification

Property	Value	Unit	Conditions
Glass Transition Temperature(Tg)2 entries	331.6	K	UltiMaker PVA · ISO 11357
↳	347.4	K	—
Melting Point / Solidus(Tm)3 entries	475.2	K	Bambu Lab Bambu PVA
↳	448.6	K	UltiMaker PVA · ISO 11357
↳	482.4	K	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Rows with are inherited from the base material

Verified Unverified Low confidence (<80%) Link to source

Filter by

Statistic

Condition

Source

Specification

Property	Value	Unit	Conditions
Density(ρ)2 entries	1.270	kg/m³	Bambu Lab Bambu PVA · ISO 1183
↳	1.230	kg/m³	UltiMaker PVA · ASTM D1505
Water Absorption(WA)	6.250	%	Bambu Lab Bambu PVA · 25°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

Export Control

Safety & Biocompatibility

Quality & Standards

Industry-Specific

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.