# Spectrum ASA LW UltraFoam 3D Printing Filament, Navy Blue, 0.75kg Refill

**URL:** https://aio.lv/en/product--spectrum-spectrum-81603lwasa--12538943
**Data updated:** 2026-06-27 08:59 (EEST)
**Category:** Other goods
**Manufacturer:** Spectrum
**Manufacturer code:** SPECTRUM-81603/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-81603lwasa--12538943

## 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 designed for advanced additive manufacturing. This navy blue 0.75kg refill spool offers excellent UV resistance and thermal stability, making it ideal for functional parts that require reduced weight. Its unique foaming properties allow for density adjustment during printing, providing high-quality results for professional engineering and prototyping applications.

## Long description

Spectrum ASA LW UltraFoam is a professional technical 3D printing filament that combines the excellent UV and weather resistance of standard ASA with advanced active foaming technology. This lightweight material enables up to a 3x weight reduction of printed parts without compromising structural integrity or surface quality. It is an ideal solution for users seeking durable, lightweight, and visually appealing components for outdoor and technical applications where weight efficiency is critical. The filament is based on the proven Spectrum ASA 275 formula, enriched with additives that allow for controlled expansion during the printing process.
Advantages
The primary advantage of this filament is its ability to significantly reduce the weight of printed objects, achieving a density as low as 0.33 g/cm³ when fully foamed. By adjusting the printing temperature between 230°C and 285°C, users gain precise control over the material's expansion and final density. This unique property allows for a much higher yield, as one spool can effectively produce the volume of three standard spools. Furthermore, the matte and rough surface finish is highly effective at masking layer lines, providing a professional aesthetic. The material retains all the core benefits of ASA, including high dimensional stability and resistance to harsh environmental conditions.
Suitable for
RC modeling and drone components
Lightweight functional engineering prototypes
Outdoor enclosures and weather-resistant parts
Aerospace and automotive hobbyist projects
Weight-sensitive structural components
When it may not be suitable
This filament is not recommended for applications requiring high-gloss surface finishes, as the foaming process inherently creates a matte, textured appearance. Additionally, it may not be the best choice for beginners, as achieving optimal results requires careful calibration of flow rates, temperatures, and retraction settings to manage the expansion process effectively.
Key specifications
Material: ASA with active foaming technology
Density: 0.33 g/cm³ to 1.08 g/cm³
Nozzle temperature: 220°C–285°C
Heated bed temperature: 60°C–90°C
Printing speed: 15–150 mm/s
Spool type: Eco-friendly cardboard core (ReFill)
How to use
To achieve the best results, you must first determine the expansion rate of the filament. Start by printing a single-perimeter test cube in vase mode across the 230°C–285°C temperature range to identify the temperature that yields the thickest wall. Once the optimal temperature is found, print calibration cubes while gradually reducing the flow rate until the wall thickness matches your nozzle diameter. It is essential to keep the fan speed low (0–10%) and print speeds slow during calibration. Always ensure the filament is dry before use, as moisture can negatively impact the foaming process.
What to consider before purchase
Requires a printer capable of handling high temperatures and precise flow control
Compatible with BambuLab reusable spools or custom-printed master spools
Requires manual calibration for each specific printer setup
Not suitable for high-speed printing without prior density testing
Usage recommendations
For the best results, use an enclosed-chamber printer to maintain consistent temperatures. If the model adheres too strongly to the build plate, reduce the bed temperature or use a suitable adhesive aid. If the final part appears brittle, increase the flow rate slightly to improve layer bonding.

## FAQ

### How much does the Spectrum ASA LW UltraFoam Navy Blue 0.75kg Refill Filament 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/12538943/68904161_large.webp