Bambu ASA

Bambu ASA is a highly durable material that offers exceptional resistance to UV radiation, weathering, mechanical stress, and high temperatures. Thanks to the unique combination of these properties, it is ideal for printing outdoor models (e.g., garden labels, mailboxes, weather vanes) and structural parts that must withstand demanding outdoor conditions over the long term.

Exceptional resistance to weathering and UV

Bambu ASA provides outstanding resistance to UV radiation, oxidation, and aging, offering effective protection against cracking and color fading during long-term outdoor use.

 

Strength and durability

Thanks to its toughness and high impact strength, it is suitable for outdoor applications as well as common structural requirements.

Improved heat resistance

Compared to standard PETG or ABS, Bambu ASA retains its shape even at 100 °C.

 

Frequently Asked Questions

1. What is the difference between ABS and ASA?

ABS	ASA
Composition	acrylonitrile - butadiene - styrene

ASA is a modified version of ABS that contains an additional component—acrylate—which improves its resistance to weathering and UV radiation.

ASA retains the impact strength and printability of ABS but offers better resistance to fading, yellowing, and degradation due to sunlight. Both materials can emit a strong and unpleasant odor during printing, but ASA’s odor is significantly milder than ABS.

2. What are the differences in use between ABS and ASA?

ASA is ideal for outdoor applications such as automotive exterior parts, signage, and outdoor equipment thanks to its enhanced weather resistance and color stability.

ABS is a versatile material with excellent mechanical properties, commonly used for indoor applications.

3. What are the similarities between ABS and ASA?

In terms of physical and mechanical properties, both materials have good impact strength and high tensile strength, with strength, toughness, and stiffness being nearly the same. Both can emit an unpleasant odor during printing and have similar tendencies to warp, which requires an enclosed printer for large and/or densely infilled models.

Parameter comparison

Find more information about different materials in the Bambu Filament Guide.

ABS	ASA	PC
Price / kg	$27.99	$29.99
Composition	acrylonitrile - butadiene - styrene	acrylonitrile - styrene - acrylate
Hotend compatibility	Hotend with 0.4 mm hardened steel nozzle / Hotend with 0.4 mm stainless steel nozzle	All sizes/materials
Build plate compatibility	Smooth PEI plate, textured PEI plate
AMS compatibility	Yes	Yes
Adhesive	Bambu Liquid Glue / Glue stick
Drying required before printing	Recommended	Recommended
Odor during printing	Strong odor	Milder odor
Toughness (impact strength - XY)	39.3 kJ/m²	41.0 kJ/m²
Strength (flexural strength - XY)	62 MPa	65 MPa
Stiffness (flexural modulus - XY)	1880 MPa	1920 MPa
Layer adhesion (impact strength - Z)	7.4 kJ/m²	4.9 kJ/m²
Heat resistance (HDT, 0.45 MPa)	87 ℃	100 ℃
Water absorption rate	0.65%	0.45%

Accessory compatibility

Recommended	Not recommended
Build plate	Smooth PEI plate, textured PEI plate
Hotend	Hotend with 0.4 mm hardened steel nozzle / Hotend with 0.4 mm stainless steel nozzle
Adhesive	Bambu Liquid Glue, Glue stick

ASA color code table

Color	Hex code
White	#FFFAF2
Gray	#8A949E
Red	#E02928
Green	#00A6A0
Blue	#2140B4
Black	#000000

RFID for smart printing

All printing parameters are stored in the RFID, which can be read by the AMS (Automatic Material System).

Just load and print! No tedious setup.

Recommended print settings

Setting	Value
Drying (oven)	80 °C, 8 h
Storage humidity	< 20% RH (sealed, with desiccant)
Nozzle temperature	240 - 270 °C
Bed temperature (with glue)	80 - 100 °C
Print speed	< 250 mm/s

Printing tips

•ASA can emit an odor during printing, so ensure adequate ventilation.

• Avoid warping on large models:

1.Do not use excessively high infill density.

2.Use enclosed printers and apply glue to the plate properly.

3.Reduce print speed and increase bed temperature.