Bambu Lab PPS-CF

# Bambu Lab PPS-CF

Overview

Bambu Lab PPS-CF is a 1.75 mm carbon-fiber-reinforced polyphenylene sulfide filament for high-temperature, chemically aggressive, and dimensionally demanding FDM applications.

PPS is already known for heat, solvent, corrosion, and moisture resistance. Bambu's chopped-carbon-fiber reinforcement further increases stiffness, bending strength, dimensional stability, and resistance to warping. The result is one of Bambu Lab's highest-temperature engineering filaments rather than an everyday Bambu PLA or general-purpose material.

Bambu publishes 87 ± 5 MPa tensile strength, 142 ± 5 MPa bending strength, 7160 ± 280 MPa bending modulus, and 264°C HDT at 0.45 MPa. The technical data also lists 235°C HDT at 1.8 MPa, 284°C melting temperature, 268°C Vicat softening temperature, and approximately 1.26 g/cm³ density.

PPS-CF also has exceptionally low moisture uptake for a reinforced engineering polymer. Bambu's comparison data lists about 0.05% saturated water absorption at 25°C / 55% RH, substantially below many nylon-based carbon-fiber filaments.

For current specifications and pricing, see the official Bambu Lab PPS-CF page and Bambu Lab filament compatibility guide.

Key Benefits

• 264°C HDT at 0.45 MPa
• 87 ± 5 MPa tensile strength
• 7160 ± 280 MPa bending modulus
• UL 94 V-0 flame rating
• Excellent chemical resistance
• Very low moisture absorption
• Strong creep and dimensional stability
• 310–340°C nozzle / 100–120°C bed
• 60–90°C controlled chamber
• Hardened 0.6 mm nozzle recommended
• 100–140°C pre-drying

Best For

1. High-temperature jigs and fixtures
2. Automotive under-hood prototypes and components
3. Aerospace development parts
4. Chemical-resistant industrial fixtures
5. Electrical and electronics housings
6. Production tooling
7. Creep-resistant machine parts
8. Hot and humid service environments

Technical Specifications

Mechanical and thermal values are manufacturer test results from defined print conditions and should not be treated as universal finished-part design allowables.

Bambu PPS-CF Printing Settings

Bambu's current PPS-CF guidance specifies:

• Nozzle: 310–340°C
• Bed: 100–120°C
• Chamber: 60–90°C
• Print speed: Below 100 mm/s
• Cooling: 0–40%
• Humidity during printing/storage: Below 20% RH
• Nozzle: Hardened steel
• Preferred diameter: 0.6 mm
• 0.2 mm nozzle: Not compatible

The carbon-fiber fill is abrasive. Use a hardened nozzle; Bambu recommends 0.6 mm to reduce clogging and wear.

Printer Compatibility

PPS-CF needs substantially more thermal capability than ordinary Bambu filament such as PLA, PETG, or ABS.

Bambu's current filament guide lists H2 Series and X1E for PPS-CF. Older store copy still names X1E/H2D, so use the latest profile for the exact printer.

The indexed Bambu Lab H2D is a direct match with a 350°C hotend and 120°C bed. By contrast, the Bambu Lab P2S and Bambu Lab A1 are not current PPS-CF platforms under Bambu's material guide.

Drying PPS-CF

PPS-CF must be thoroughly dried before printing.

Bambu's TDS recommends:

• Forced-air / blast drying oven: 100–140°C for 8–12 hours
• Keep filament below 20% RH during printing and storage
• Seal immediately with desiccant after drying

A controlled forced-air oven is the clearest drying method. Bambu warns against microwave or ordinary kitchen ovens because uneven heating can damage the spool or filament.

Bambu Lab AMS 2 Pro Filament Dryer and PPS-CF

The keyword Bambu Lab AMS 2 Pro filament dryer is relevant here mainly because PPS-CF exceeds the dryer's temperature capability.

AMS 2 Pro reaches up to 65°C, while PPS-CF requires 100–140°C for 8–12 hours in Bambu's drying guidance. AMS 2 Pro therefore cannot perform the required high-temperature pre-drying cycle for wet PPS-CF.

Bambu also warns that rigid PPA-CF and PPS-CF can break in AMS gears or sharply bent PTFE tubes. The H2 guide shows direct feeding from an external airtight dry box.

Dry the spool correctly, move it to a sealed dry box, follow the printer-specific feed path, and keep humidity below 20% RH. AMS 2 Pro remains useful for many lower-temperature Bambu filaments, but not for the required PPS-CF pre-drying cycle.

Heat Resistance and Annealing

PPS-CF sits far above conventional PLA, PETG, ABS, ASA, and most PC composites in Bambu's heat-resistance table.

Bambu publishes:

• 264°C HDT at 0.45 MPa
• 235°C HDT at 1.8 MPa
• 268°C Vicat softening temperature
• 284°C melting temperature

Bambu also states that PPS-CF can operate above 200°C in suitable applications, but actual service limits remain load-, geometry-, orientation-, and environment-dependent.

Optional Annealing

Bambu documents 180–220°C for 6–12 hours. Annealing can improve stability but may also cause warping or dimensional change, so validate the final process on production geometry.

Mechanical Performance

PPS-CF is very stiff rather than ductile: Bambu publishes 87 MPa tensile strength, 142 MPa bending strength, 7160 MPa bending modulus, 1.2% elongation, and 27.8 kJ/m² impact strength. That profile suits fixtures, housings, tooling, frames, and heat-loaded brackets.

Chemical, Moisture, and Flame Resistance

Bambu documents resistance to acids, alkalis, organic solvents, oils, grease, water, and humid environments, while its comparison data shows only about 0.05% water absorption. Validate the exact chemical concentration and service temperature for production use.

PPS-CF also carries a UL 94 V-0 flame rating. That is useful material data, but it does not automatically certify the final printed assembly.

Bambu Filament Cost per Gram

For users comparing Bambu filament cost per gram, the current US price of US$129.99 for 750 g works out to approximately US$0.173/g, or about 17.3 cents per gram before tax and shipping.

That is far more expensive than everyday Bambu Lab PLA, so the premium only makes sense when extreme heat, chemicals, creep, or humidity stability are required.

Bambu Filament and Bambu Lab Filament Buying Context

Users searching for Bambu filament, Bambu Lab filament, Bambu filaments, Bambu PLA, or Bambu Lab PLA should not treat PPS-CF as a premium version of ordinary PLA.

PPS-CF needs a 310–340°C hotend, 100–120°C bed, 60–90°C chamber, hardened nozzle, high-temperature drying, and dry feeding. The phrase “Bambu Labs filament” is a common search variation; the manufacturer name is Bambu Lab.

For ordinary models, PLA or PETG is far easier and cheaper.

Does Bambu Come With Filament?

A common search question is “does Bambu come with filament?”

Some Bambu printer packages include small samples, but a full PPS-CF spool should be treated as a separate purchase. Confirm printer, nozzle, chamber, plate, and drying compatibility before use.

Comparison Table: Bambu PPS-CF vs Engineering Carbon-Fiber Filaments

Figures come from different manufacturers and test conditions and should be used for material positioning rather than direct design substitution.

Bambu Lab PPS-CF vs Bambu PPA-CF

The Bambu PPS-CF vs PPA-CF comparison is the most relevant high-temperature decision inside Bambu's engineering range.

Bambu's own heat-resistance comparison lists approximately 264°C HDT at 0.45 MPa for PPS-CF and 227°C for PPA-CF.

PPA-CF remains more moisture-sensitive. Choose PPA-CF for very high mechanical/thermal performance without PPS-level chemical requirements; choose PPS-CF for the highest heat, humidity stability, and chemical resistance.

Bambu Lab PPS-CF vs Prusament PA11 Carbon Fiber

The indexed Prusament PA11 Carbon Fiber provides 192°C HDT at 0.45 MPa and 152°C at 1.8 MPa.

PA11-CF adds wear, low friction, impact performance, and easier processing. Choose PA11-CF for 190°C-class moving/mechanical parts; choose PPS-CF for a much higher thermal ceiling and lower moisture uptake.

Bambu Lab PPS-CF vs Prusament PC Blend Carbon Fiber

The indexed Prusament PC Blend Carbon Fiber is a considerably easier high-stiffness carbon-fiber material.

Prusa publishes 114°C HDT at 0.45 MPa, with temperature resistance rising to about 130°C after its documented annealing process.

PC Blend CF needs only around 285°C and no enclosure according to Prusa. Choose it for 100–130°C-class rigid tooling; choose PPS-CF for substantially harsher thermal, chemical, humidity, or creep service.

Which PPS-CF Alternative Fits Best?

• Bambu PPA-CF: best Bambu alternative when very high heat is required but PPS-level chemical/moisture resistance is unnecessary.
• Prusament PA11 Carbon Fiber: strong choice for wear, impact, chemical resistance, and high-temperature moving parts.
• Prusament PC Blend Carbon Fiber: easier lower-temperature carbon-fiber option for rigid engineering parts.
• Bambu PPS-CF: strongest fit when 200°C-plus service capability, chemical resistance, dimensional stability, and very low moisture uptake are essential.

Price and Availability

Bambu's current US store lists PPS-CF at US$129.99 per 0.75 kg spool.

That equals roughly:

• US$0.173 per gram
• US$17.33 per 100 g

The spool is black PPS-CF on a cardboard spool with desiccant. Pricing, stock, tax, and shipping can change by region.

For regional reference, the approximate price is €111.45 in Europe, £95.61 in the United Kingdom, AED 477.45 in the UAE, C$179.67 in Canada, A$182.67 in Australia, and ₹12,426 in India. The actual Bambu Lab regional prices may differ because of local pricing, taxes, shipping, promotions, stock, and exchange-rate changes.

Limitations and Practical Considerations

• Requires 310–340°C nozzle temperature.
• Requires a 100–120°C bed.
• Requires a tightly controlled 60–90°C chamber.
• Carbon fiber is abrasive; hardened steel is required.
• 0.6 mm nozzle is the preferred general option.
• 0.2 mm nozzle is not compatible.
• Pre-drying requires 100–140°C for 8–12 hours.
• AMS 2 Pro's 65°C dryer is not hot enough for PPS-CF pre-drying.
• PPS-CF can be brittle in automated feed paths and sharply bent PTFE tubes.
• Use an external sealed dry box and printer-specific feed path where Bambu recommends it.
• Print speed is below 100 mm/s.
• Material cost is much higher than common PLA, PETG, ABS, or ASA.
• Parts are stiff and relatively low-elongation rather than ductile.
• Chemical resistance should still be validated for the exact fluid and temperature.
• Mechanical and HDT values are orientation- and test-condition-dependent.

Frequently Asked Questions