PVA (FDM, Bambu Lab Bambu PVA) — Properties & Data | MatWorld

PVA (FDM, Bambu Lab Bambu PVA)

· Bambu PVA

Bambu Lab Bambu PVA is a polyvinyl alcohol filament grade for fused deposition modeling, used as a water-soluble support material printed alongside a build material on multi-material machines. PVA is strongly hygroscopic, so the filament must be kept dry to avoid stringing, bubbling and poor extrusion. After printing, the supports are dissolved by soaking the part in water, which leaves the contact surfaces free of the scars that breakaway supports leave. It supports overhangs, internal channels and enclosed cavities that breakaway supports cannot reach, and is typically paired with PLA and similar low-temperature filaments. Every value on this page is read from Bambu Lab's own material data sheet — quoted, cited and dated — and is the maker's statement about printed material, not a measurement by MatWorld; none has yet been reviewed by a person.

water-soluble supports for overhangswater-soluble supports for internal channelswater-soluble supports for enclosed cavities

Compliance & Regulations

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

PVA (FDM)/PVA (FDM, Bambu Lab Bambu PVA)

Units:

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Source

Property	Value	Unit	Conditions	Source
Glass Transition Temperature(Tg)	165.6	°F	—
Melting Point / Solidus(Tm)	395.6	°F	notes

Rows with are inherited from the base material

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

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.04588	lb/in³	ISO 1183
Water Absorption(WA)	6.250	%	25°C

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.