BVOH

Butenediol Vinyl Alcohol Co-polymer

BVOH (Butenediol Vinyl Alcohol Co-polymer) is an advanced water-soluble filament used exclusively for support structures in multi-material printing. It dissolves cleanly in water, leaving complex prints free of support marks without any manual removal. More moisture-resistant and easier to print than traditional PVA, BVOH is the premium choice for intricate overhangs and complex geometries.

Skill level: Moderate

This filament is moderately demanding to print. Worth watching: it can be moisture-sensitive.

Nozzle 185-215 °CBed 60-80 °CEnclosure Not RecommendedMoisture HighFumes LowBed adhesion EasyⓘSpeed sensitivity Very Highⓘ

ⓘ Ratings you can usually improve by dialing in your settings.

Things to watch

Soaks up moisture quickly, keep it sealed and dry before printing
Degrades in sunlight, not ideal for long-term outdoor use

Strengths

Layers bond strongly for clean, watertight prints
Stays flat, very little warping

Full spec sheet · 28 fields

Printing requirements

NOZZLE TEMP

185-215 °C

BED TEMP BAND

Off, 40-60°C

PART COOLING

High 75%

FIRST-LAYER FAN

Off

ENCLOSURE / CHAMBER

Ambient (20-35°C)

VOC / FUMES

Low

AIR MANAGEMENT

Open Window / Room Ventilation, Carbon Filtration

Dilutes airborne contaminants but doesn't filter them. Reduces VOCs and odors but not ultrafine particles.

FLOW RATIO

0.95

ADHESION AID

Optional (Brim, Glue (release), Magigoo)

DRY BEFORE PRINTING

Required

ACTIVE DRYING DURING PRINT

Required

DRYING

40-45 °C for 4-8 h

Printing characteristics

PRINT ACCURACY

Challengingⓘ

WARPING

None

BED ADHESION DIFFICULTY

Easyⓘ

POST-PRINT BED RELEASE

Easy

LAYER ADHESION

Excellentⓘ

BRIDGING & OVERHANG

Fairⓘ

STRINGING

Moderateⓘ

OOZING

Moderateⓘ

SPEED SENSITIVITY

Very Highⓘ

RECOMMENDED MAX SPEED

50 mm/s

MOISTURE SENSITIVITY

High

ODOR

Mild

DRAFT SENSITIVITY

Low

Material properties

DENSITY

1.14 g/cm³

UV RESISTANCE

Poor

WEATHER RESISTANCE

Poor

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