# Welding Electrode Monolith E4043 2.5 mm for Aluminum Si 5%

**URL:** https://aio.lv/en/product--monolith-30194150--10865691
**Data updated:** 2025-12-30 12:48 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** Monolith
**Manufacturer code:** 30194150
**EAN:** 4820130194150
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--monolith-30194150--10865691

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

Monolith E4043 welding electrode, 2.5 mm diameter, designed for aluminium alloys with approximately 5% silicon. Suitable for gas-shielded and manual arc welding applications where filler metal with Al-Si composition is required. Provides consistent feed and stable arc for repair, fabrication and maintenance of aluminium parts and structures.

## Long description

Monolith E4043 welding electrode, 2.5 mm diameter, formulated for aluminium and aluminium alloys with approximately 5% silicon (Al-Si). Designed to serve as filler material in gas-shielded and manual arc welding processes, this electrode provides stable arc characteristics and consistent feed for repair, fabrication and maintenance of aluminium parts and structures.
Advantages
The E4043 composition with ~5% silicon ensures good fluidity of the molten weld pool and reduced porosity when joining aluminium alloys. A stable arc and uniform wire diameter support predictable bead formation and consistent deposition rates. Suitable for a range of aluminium applications, the electrode offers reliable compatibility with common Al-Si base metals.
Suitable for
Repair welding of cast and wrought aluminium parts
Fabrication of aluminium components and structures
Maintenance and restoration of Al-Si alloy assemblies
Gas-shielded and manual arc (MMA) welding processes requiring Al-Si filler
Key specifications
Brand: Monolith
Model/MPN: 30194150
EAN: 4820130194150
Type: E4043 (Al-Si filler)
Silicon content: ~5%
Diameter: 2.5 mm
Application: Aluminium and aluminium alloys
How to use
Prepare the joint by cleaning the aluminium surfaces from oxides, grease and contaminants. Select appropriate welding parameters for a 2.5 mm electrode—adjust current and travel speed according to base material thickness and joint design. Use gas-shielded or manual arc techniques compatible with Al-Si filler wires, maintaining steady feed and consistent arc length to achieve uniform weld beads. Allow proper interpass cooling to avoid overheating and distortion.
Usage recommendations
Store electrodes in a dry environment to prevent moisture pickup. For best results, match filler composition to base alloy and follow manufacturer guidelines for current settings, shielding gas, and pre/post-weld cleaning.

## FAQ

### How much does the Welding Electrode Monolith E4043 2.5 mm cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 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 26.06.2026 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 Monolith 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 Monolith 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

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