Rothenberger - Solder Wire Tin/Copper SN 97%/CU 3% 3mm 250g - 45255

Features of Rothenberger SN 97%/CU 3% Solder Wire

The Rothenberger SN 97%/CU 3% Solder Wire, 3 mm, 250 gr (item code 45255) is a high-quality solder alloy designed to ensure professional results in various plumbing and heating applications. This alloy is composed of 97% tin (Sn) and 3% copper (Cu), a combination that offers excellent fluidity and mechanical strength to soldered joints.

Composition and technical specifications

The SN 97%/CU 3% alloy has a diameter of 3 mm, ideal for most plumbing soldering applications. The reel contains 250 grams of material, sufficient for numerous soldering jobs. The melting point of this alloy is around 230-250°C, a characteristic that makes it particularly suitable for soldering that requires precision and strength. The high tin content composition ensures superior quality joints and increased corrosion resistance over time.

Main applications

This solder alloy reel is used in numerous professional contexts and specific applications:

• Installation and maintenance of domestic and industrial plumbing systems
• Creation of joints in copper pipes for drinking water
• Repair of heating systems
• Installation of air conditioning systems
• Sheet metal work and light carpentry
• Soldering of electrical and electronic components that require precision

Advantages of SN 97%/CU 3% alloy

The particular composition of this alloy offers numerous benefits compared to other solutions on the market:

• Excellent fluidity during the melting phase, which facilitates capillary penetration into joints
• Excellent mechanical strength of completed solders
• High resistance to corrosion and oxidation over time
• Compatibility with common soldering fluxes
• Compliance with regulations for use with drinking water
• Smooth and uniform finish of solders
• Reduced slag formation during the soldering process

Tips for optimal use

To obtain the best results with the Rothenberger SN 97%/CU 3% Solder Wire, it is recommended to thoroughly clean the surfaces to be soldered, removing oxides and impurities. The use of an appropriate flux, such as Rothenberger paste, will further improve the quality of the solder by facilitating the uniform distribution of the alloy. Heat the joint area evenly until the optimal temperature before applying the alloy. Once soldering is complete, allow to cool naturally to avoid thermal stress that could compromise the strength of the joint.

Storage and safety

To maintain the properties of the alloy, it is recommended to store the reel in a dry environment at room temperature, avoiding prolonged exposure to humidity. During soldering operations, always use appropriate personal protective equipment, such as heat-resistant gloves and protective eyewear, and work in well-ventilated areas to avoid inhaling fumes produced during the soldering process.