ASA Kevlar | Spectrum
High durability in production applications
Technical informations
Thermal properties | |
| HDT-A | 79 °C |
| HDT-B | 89 °C |
| Vicat softening temperature | 94 °C |
Filament properties | |
| Country of origin | Poland |
| Filament density | 1.07 g/mm3 |
| Diameter tolerance | 0.03 mm |
| Recommended adhesive | 3DLac - Bestselling adhesive spray |
Spool weight and dimensions |
How to store filaments
Humidity and UV light can decrease the filament quality and weaken its mechanical properties. We strongly recommend storing open filaments in a dry and dark place. You can find a complete guide on how to properly store your filament here
Where to throw print fails and supports?
We kindly ask our customers to cope with plastic waste responsibly. Failed prints, support material, rafts, or brims should be liquidated according to the local guidelines. Paradoxically, in most cases, it is better to throw this waste in the regular trash can, as most of the material waste created in 3D printing is not identified, which causes more problems than benefits in the waste sorting facilities.
ASA Kevlar | Spectrum
High durability in production applications
Spectrum ASA Kevlar filament is a technical composite material based on a combination of ASA copolymer and aramid fibres. The aim of producing composite materials by combining different types materials is to impart new properties, previously unattainable for separate components. As a base for the composite, we used the ASA copolymer, well known for its high resistance to weather conditions, combining it with aramid, which is used to make some of the strongest synthetic fibres.
Aramid fibres, mainly known as Kevlar, are used to manufacture highly damage-resistant items such as bulletproof vests, helmets and speaker membranes. Aramid fibres do not fracture easily under stress (unlike glass and carbon fibres), instead they experience shear fracture and tearing – which gives them high resistance to damage.
Aramid itself is a not a particularly UV-resistant material, coating it and – in a way – protecting in the ASA polymer, highly resistant to this factor, guarantees a long life for the fibres and the entire composite. Unlike carbon and glass fibres, Kevlar fibres exhibit significantly less abrasion of the printer nozzle, which is not insignificant for the processing costs of printing. The use of fibre structures helps reduce material shrinkage when printing, making it possible to produce large-scale models.
With our new filament, Kevlar is now also finding its place in 3D printing technology. Components printed from Spectrum ASA Kevlar can be used in applications that require sunlight resistance and high impact strength (e.g. bumpers, protection, etc.). The aramid fibre makes for a rougher outer surface of the prints, making them more matt and, therefore, more aesthetically pleasing than classic ASA.
General information about ASA :
ASA filament is well known for its UV stability and outdoor weather resistance, temperature resistance, chemical resistance, and strong mechanical properties. It has a similar chemical structure to ABS; therefore, it is often referred to as enhanced ABS. ASA typically has a low glow finish compared to other materials. As ASA can be as tricky as ABS for 3D printing, some manufacturers have developed a slightly weaker version of ASA (ASA 275) which features the same UV stability and chemical resistance, but in a tradeoff for mechanical properties. ASA 275 has become widely popular for its ease of print.
Printability of ASA filament
ASA can be as tricky as ABS for 3D printing; a heated chamber is recommended as well as a suitable adhesive. The hotbed temperature ranges from 90°C to 130°C depending on the manufacturer's recommendations. The extruder is typically around 245°C, with a printing speed of up to 90mm/s. Cooling is not recommended as it would improve the already present warping effect of ASA (with ASA 275, cooling is recommended).
ASA mechanical and thermal properties
ASA's Tg is typically around 100°C, with a typical HDT-A of 90°C. If printed correctly, ASA exhibits strong mechanical properties and is the perfect candidate for any outdoor use. Printed objects from ASA have a hard surface and feature superior toughness compared to ABS which is stiffer.
Tips and other notable benefits
ASA is mildly hygroscopic; drying may be necessary before printing.
Browse all ASA filaments in stock in our warehouse in Senec, Slovakia. For comparison, see also ABS and PETG.
Spectrum is one of the largest filament manufacturers in Poland, with one of the broadest portfolios of 3D printing materials. It covers everything from easy desktop PLA to engineering polymers and fibre-reinforced composites. JustCreate3D stocks over 30 Spectrum products in its warehouse in Senec, Slovakia, ready for fast dispatch.
Spectrum selects its raw materials carefully and uses modern production lines that let it colour filaments while keeping their key mechanical properties. Every spool comes with an individual quality report from Spectrum's own Verify Your Spool system. The range is split into three segments: easy-to-use desktop materials, industrial-grade engineering thermoplastics, and high-performance compositions for professional users.
Spectrum filaments at JustCreate3D
- PLA – PLA MATT, PLA SILK, PLA Glow in the Dark, PLA Carbon and GreenyHT™, a PLA with higher heat resistance.
- PETG and PCTG – PETG Premium, PETG MATT, PET-G Glitter, PETG Glow in the Dark, PETG HT100™, PETG FX120™, PETG 10% PTFE, PETG Carbon and PCTG.
- ASA and ABS – ASA 275, ASA Kevlar, ASA-X CF10™, ABS Kevlar and ABS Medical.
- Engineering materials – PA6 Low Warp™, PA6 Low Warp CF15S, PA6 Low Warp GF30™, PA6 CS20 FR V0, PC-PTFE and PPS AM230™.
- 5PACK sets (5 × 0.25 kg) – ASA 275, Carbon Set, Material Mix 1 and 2, PCTG Premium and PLA SILK, handy for testing several materials or colours.
Who is Spectrum for?
Spectrum is a good choice for beginners who want reliable PLA and PETG in many colours, and for advanced users who need technical materials such as low-warp nylon, ASA for outdoor parts or PPS. The 5PACK sets are a practical way to try a new material before buying a full spool.
Frequently asked questions
What is the Verify Your Spool report?
It is Spectrum's own quality system: each spool has an individual report with its quality data, so you can check the batch you received.
Which Spectrum filament should I start with?
Start with PLA (MATT or SILK for a nicer surface) or PETG Premium for tougher parts. For outdoor use, ASA 275 is the usual next step.
Do Spectrum composites need a hardened nozzle?
Yes. Carbon, glass fibre and Kevlar filled materials are abrasive, so use a hardened steel nozzle with them.
Browse all Spectrum filaments in stock.