Bambu Lab TPU 90A Grape Jelly 1kg – flexible filament for functional parts

Bambu Lab TPU 90A in Grape Jelly (51700) shade is a premium flexible filament designed for technical and design applications where durability, flexibility, and dimensional stability are needed. The Shore 90A hardness provides an excellent compromise between softness and strength – the part is still bendable and compressible, but strong enough to hold its shape and support loads.

The translucent and vibrant Grape Jelly shade gives your prints an attractive look and allows for interesting lighting effects (e.g., for covers, lamps, or decorations).

Key features

• Shore 90A hardness – combination of flexibility and high dimensional stability
• High abrasion and tear resistance – suitable for stressed functional parts
• Great flexibility (elongation at break up to hundreds of %) – withstands repeated bending
• Multi-material printing capability with PLA and PETG* on compatible dual-nozzle Bambu Lab printers
• Translucent, rich Grape Jelly color – ideal for design and functional models
• 1.75 mm diameter with high dimensional accuracy – reliable and consistent printing
• Supplied on a reusable high-temperature spool – convenient handling and storage

* Multi-material printing with PLA/PETG is supported for TPU 90A on selected dual-nozzle printers (e.g., Bambu Lab H2C/H2D) – always verify your printer's compatibility.

Recommended use

TPU 90A is ideal for:

• Shoe soles, insoles, damping elements
• RC tires, bumpers, protective frames
• Protective covers, cases, packaging, and bumper elements
• Ergonomic handles, grips, and cushioned tool handles
• Flexible couplings, silent blocks, stops
• Wearables, straps, protectors

Thanks to the ratio of hardness and flexibility, TPU 90A is suitable wherever it is necessary to absorb shocks while maintaining shape, precise geometry, and ease of assembly.

Printing recommendations

To achieve the best results when printing Bambu Lab TPU 90A Grape Jelly, we recommend:

• Nozzle diameter: 0.4–0.6 mm (these values are recommended for TPU 90A)
• Nozzle temperature: approximately 230–250 °C (controlled by the profile in Bambu Studio)
• Bed temperature: approx. 35–60 °C depending on the printer and bed type
• Print speed: rather lower; use the default TPU 90A profile in Bambu Studio (do not increase max volumetric speed)
• Print bed: smooth or textured PEI plate, usually without glue
• High hygroscopicity: dry the filament before printing according to the manufacturer's recommendations (tens of hours at increased temperature depending on the type of printer/dryer)

TPU is soft and sensitive to retraction and feed speed settings. Make sure to use the official Bambu TPU 90A profile in Bambu Studio and follow the manufacturer's recommended procedure.

Compatibility with Bambu Lab printers

Bambu Lab TPU 90A is designed for Bambu Lab printers and supported on a range of models. Generally:

• X/P Series: compatible with TPU 90A (with prescribed settings)
• A Series: compatible with TPU 90A (TPU 85A is not supported)
• H2 Series (H2C, H2D): compatible, multi-material printing capability with PLA/PETG for TPU 90A
• AMS, AMS lite: TPU 90A is standardly not recommended for use in classic AMS; AMS HT is designed for feeding

Always check current Bambu Lab recommendations for your specific printer model and firmware version.

Material properties (typical TPU 90A values)

* Values are typical material parameters given by the manufacturer for TPU 90A and may vary slightly depending on testing conditions.

Storage and maintenance

• Keep filament dry, ideally in a sealed box or dry-box with desiccant
• For long-term storage, we recommend drying the filament again before printing
• Protect from direct sunlight and high temperatures

Proper care will significantly extend the filament's life and improve print quality.

Bambu Lab TPU 90A Grape Jelly 1kg is a great choice for everyone looking for a reliable flexible filament for technical, hobby, and design projects while wanting to take advantage of original Bambu Lab profiles for trouble-free printing.

Key features:

• Flexible TPU filament with Shore 90A hardness for a combination of flexibility and dimensional stability
• High resistance to abrasion, tearing, and impact – ideal for stressed functional parts
• Attractive translucent Grape Jelly color (51700) for design and wearable applications
• Multi-material printing capability with PLA and PETG on compatible dual-nozzle Bambu Lab printers
• Optimized for Bambu Lab printers with pre-set profiles in Bambu Studio
• Quality filament with precise diameter of 1.75 mm ± 0.05 mm for stable and reliable printing
• Supplied on a reusable high-temperature spool in 1 kg weight