# Spectrum ASA LW UltraFoam Filament Dark Grey 0.75kg Refill

**URL:** https://aio.lv/en/product--spectrum-spectrum-81605lwasa--12538942
**Data updated:** 2026-06-27 08:59 (EEST)
**Category:** Other goods
**Manufacturer:** Spectrum
**Manufacturer code:** SPECTRUM-81605/LWASA
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.75 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 32.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--spectrum-spectrum-81605lwasa--12538942

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Spectrum ASA LW UltraFoam is a lightweight, foaming 3D printing filament in dark grey. Designed for advanced users, this 0.75kg refill spool offers excellent UV resistance and thermal stability, making it ideal for functional parts that require low density and high durability. The material expands during printing, allowing for weight reduction in printed models while maintaining structural integrity.

## Long description

Spectrum ASA LW UltraFoam is a professional-grade, lightweight 3D printing filament in dark grey, engineered with advanced active foaming technology. By leveraging the inherent UV and weather resistance of ASA, this material allows for significant weight reduction in printed parts without sacrificing structural integrity. As the filament is heated, it expands, enabling users to achieve a density as low as 0.33 g/cm³ and reducing the weight of final models by up to three times compared to standard materials. This refill spool is designed for efficiency and sustainability, providing a high-performance solution for advanced users who require lightweight, durable components.
Advantages
The primary benefit of this filament is its ability to undergo controlled expansion during the printing process, which is activated at temperatures between 230°C and 285°C. This foaming effect not only reduces the overall weight of the object but also increases the material yield, as one spool can produce as much volume as three standard spools. The matte, rough surface finish effectively masks layer lines, resulting in a professional aesthetic. Furthermore, the material maintains the excellent mechanical properties of ASA, including high dimensional stability and resistance to harsh outdoor environments, making it a versatile choice for functional engineering projects.
Suitable for
RC modeling and drone components
Lightweight functional prototypes
Outdoor technical parts requiring weather resistance
Large-scale models where weight reduction is critical
This filament may not be suitable for applications requiring high-gloss surface finishes or extreme heat resistance beyond the standard ASA threshold. Additionally, it is not recommended for beginners, as the active foaming process requires precise calibration of temperature, flow rates, and retraction settings to achieve optimal results.
Key specifications
Material density: 0.33 g/cm³ to 1.08 g/cm³
Nozzle temperature range: 220°C–285°C
Heated bed temperature: 60°C–90°C
Printing speed: 15–150 mm/s
Spool type: Eco-friendly cardboard core (Refill)
Compatibility: Compatible with reusable spool systems
To achieve the best results, start by printing a single-perimeter test cube in vase mode to determine the optimal expansion rate. Conduct tests within the 230°C–285°C range at 5°C intervals, keeping fan speeds low (0–10%) and print speeds slow (15 mm/s). Once the ideal temperature is identified, calibrate the flow rate—typically between 28% and 40%—until the wall thickness matches your nozzle diameter. Always ensure the filament is dry before use to prevent moisture-related artifacts.
What to consider before purchase
Requires an enclosed-chamber printer for best foaming results
Filament must be dried prior to printing to ensure consistent expansion
Requires manual calibration of flow and temperature for each specific model
Designed for use with reusable spool systems
For optimal performance, always store the filament in a dry environment and use a filament dryer if the material has been exposed to humidity, as moisture significantly degrades the foaming quality and surface finish.

## FAQ

### How much does the Spectrum ASA LW UltraFoam Dark Grey 0.75kg Refill cost, and is it available for purchase?

The price is 38.75 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Thursday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Spectrum products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Spectrum service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12538942/68904160_large.webp