# Bisan soldering paste for hard soldering LB4 100 g tin can

**URL:** https://aio.lv/en/product--bisan-z6b870275--11832163
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Miscellaneous repair tools
**Manufacturer:** Bisan
**Manufacturer code:** Z6B870275
**EAN:** 5903978702752
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 7.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bisan-z6b870275--11832163

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Soldering paste Bisan LB4 in a 100 g tin can formulated for hard (brazing) soldering applications. Supplied as a paste to assist with fluxing and wetting of metal surfaces during high-temperature joining processes. Suitable for workshop and repair use where hard soldering of copper, brass or similar metals is required; aids capillary flow and joint formation.

## Long description

Bisan soldering paste for hard soldering LB4 in a 100 g tin can is a flux paste formulated to support brazing and high-temperature joining of metals. Supplied as a viscous paste, it promotes wetting, improves capillary flow of filler metals and helps produce consistent, metallurgical bonds when working with copper, brass and similar alloys. The compact tin container is suitable for workshop use and repairs where controlled application of flux is required.
Advantages
The paste form ensures easy, localised application and reduces waste compared with liquid fluxes. It enhances filler metal flow into narrow gaps by promoting capillary action and reduces the risk of oxidation during heating. The formulation is designed for stability in storage and convenient handling in routine workshop brazing tasks.
Suitable for (tasks / use cases)
Hard soldering and brazing of copper and copper alloys
Plumbing repairs and heating system joints
Workshop metal joining and small fabrication tasks
Repair and maintenance of brass fittings and components
Key specifications
Form: viscous paste in a 100 g tin can
Application temperature range: suitable for high-temperature brazing processes
Intended metals: copper, brass and similar alloys
Function: flux to promote wetting and capillary flow of filler metals
How to use
Clean the joint surfaces to remove oils, oxidation and contaminants before application. Apply a thin, even layer of the soldering paste to the area to be joined, taking care to avoid excessive excess. Assemble the components ensuring proper fit and gap for capillary action. Heat the assembly with a suitable torch or brazing equipment until the flux becomes active and the filler metal flows into the joint. Allow the joint to cool and then remove any residual flux deposits according to safe cleaning procedures.
Usage recommendations
Use appropriate personal protective equipment and local ventilation when brazing. Store the tin can in a cool, dry place away from direct heat sources. Do not use the paste on metals or applications for which brazing is unsuitable; follow any safety data sheet instructions provided by the manufacturer for safe handling and disposal.

## FAQ

### How much does the Bisan soldering paste LB4 100 g cost, and is it available for purchase?

The price is 8.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 23.07.2026 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 Bisan 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 Bisan 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/11832163/67232705_large.webp