Dickmann flux-cored wires

No-clean flux-cored solder wire for manual and robotic soldering

Solder alloy wire with a flux core, from 0.5 to 3 mm, in lead-free and tin-lead alloys

Flux-cored wire contains the flux in its core: alloy and flux melt together, allowing soldering in a single step. Dickmann produces flux-cored wires with rosin, no-clean and water-soluble fluxes, in lead-free and tin-lead alloys, for manual soldering, rework and soldering robots. Our no-clean ROL0 flux-cored wires are ideal for precision electronics, automotive and industrial applications. Discover our SAC305 lead-free alloys and 99SnCuNiGe (SN100C equivalent).

Why Choose Flux-Cored Wires?

Four advantages that make the difference

A single step
Alloy and flux reach the joint together: no need to apply flux separately.
Controlled residues
No-clean and ROL0 rosin fluxes leave non-corrosive residues that normally do not require cleaning.
The right flux
Rosin, no-clean or water-soluble: chosen according to the surface to be soldered and the permitted residue.
Lead-free and Sn-Pb alloys
SAC305, SAC0307, 99SnCuNiGe, Sn99.3Cu0.7 and, where permitted, Sn63Pb37 and other tin-lead alloys.
No-clean flux-cored solder wire spools

No-Clean Flux-Cored Wire Technical Specifications

Characteristics of the Dickmann flux-cored wire range

SpecificationValueUnitNotes
Diameters0.5 – 3mmFrom precision work to large cross-section conductors
FluxesNo-clean, rosin, water-soluble-No-clean and rosin: IPC J-STD-004 ROL0 and ROM1; water-soluble: EN ISO 9454-1 3.1.1.C
StandardsIPC J-STD-004, EN ISO 9454-1-Flux classification (EN ISO 9454-1 supersedes DIN EN 29454-1)
AlloysLead-free and tin-lead-See the range table

The flux-cored wire range

Each flux-cored wire is defined by its combination of flux and alloy. These are the combinations available in the catalogue.

ProductFluxLead-free alloysTin-lead alloys
Alfa CRosin ROL0, halide-freeSAC0307, 96.5Sn3.5Ag, SAC305, 97Sn3Cu, 99.3Sn0.7Cu, 99SnCuNiGe63Sn37Pb, 60Sn39PbCu1, 50Sn49PbCu1, 40Sn60Pb, 63Sn35Pb2Ag
Alfa ERosin ROL097Sn3Cu, 99.3Sn0.7Cu, SAC0307, 96.5Sn3.5Ag, SAC30560Sn39PbCu1, 50Sn49PbCu1
Impetol BActivated rosin ROM196.5Sn3.5Ag, SAC305, 97Sn3Ag, SAC0307, 97Sn3Cu, 99.3Sn0.7Cu60Sn39PbCu1, 40Sn60Pb, 50Sn49PbCu1
Dixtra No CleanNo-clean ROL099.3Sn0.7Cu, 99SnCuNiGe, SAC305, SAC0307—
AIM GlowcoreNo-clean ROL099.3Sn0.7Cu, 99SnCuNiGe, SAC305, SAC0307—
Dixtra GelWater-soluble, inorganic salts (EN ISO 9454-1 3.1.1.C)SAC0307, 96.5Sn3.5Ag, 99.3Sn0.7Cu50Sn50Pb, 60Sn40Pb
Dixtra GlicoWater-soluble, inorganic salts (EN ISO 9454-1 3.1.1.C), strong activationSAC0307, 96.5Sn3.5Ag, 99.3Sn0.7Cu50Sn50Pb, 60Sn40Pb

Tin-lead alloys are for uses in which lead is permitted under RoHS exemptions.

How to choose the diameter

The diameter should be chosen according to the pad size and the thermal mass of the joint: a wire that is too thick deposits excess alloy, one that is too thin slows down the work. For automatic topping up of solder pots, flux-free solid wire is used instead.

DiameterTypical use
0.5 – 0.8 mmSMD and small components
0.8 – 1.2 mmTHT components and general use
1.5 – 3 mmWiring, connectors and large cross-section conductors

Tip temperature and flux

With lead-free alloys the soldering iron tip typically works between 330 and 370 °C, with tin-lead alloys lower, around 300–340 °C. The right temperature depends on the tip and the thermal mass: a tip suited to the joint is better than a higher temperature, which degrades the flux and shortens tip life.

The most common versions contain 2 to 3 % flux by weight, in a single core or in multiple micro-cores for more uniform delivery. The percentage and core type of each product are stated in the technical sheet.

The IPC J-STD-004 designations describe the flux: RO indicates rosin, OR an organic flux; L and M indicate low or moderate activity; 0 and 1 halides below or above 0.05 % by weight. For applications that require additional flux, see the liquid and gel fluxes.

Applications of No-Clean Flux-Cored Wires

Sectors where flux-cored wires make the difference

Assembly and rework
Assembly and rework
Manual soldering of THT components, touch-up after reflow and wave soldering, rework of electronic boards.
Wiring and connectors
Wiring and connectors
Soldering and tinning of cables, terminals and connectors.
Industrial maintenance
Industrial maintenance
Repair of boards and equipment in the workshop and in the field.
Structural soldering
Structural soldering
Copper, brass, bronze and iron with the Dixtra Gel and Dixtra Glico water-soluble flux wires, with removal of the residues.

Which flux to choose

The fluxes of the Dickmann range compared

Flux TypeActivationCleaning RequiredApplications
No-clean ROL0 (Dixtra No Clean, AIM Glowcore)LowNot requiredElectronics, minimal residues
Rosin ROL0 (Alfa C, Alfa E)LowNormally not requiredElectronics, slightly amber residues
Rosin ROM1 (Impetol B)HigherRecommended in electronicsDifficult surfaces, fast soldering
Water-soluble, inorganic salts (Dixtra Gel, Dixtra Glico)HighMandatory: residues must be removedStructural soldering on copper, brass, iron

💡 Nota: Electronics uses no-clean and ROL0 rosin fluxes; ROM1 and water-soluble fluxes are for difficult surfaces or structural soldering, with residue cleaning.

Frequently Asked Questions about Flux-Cored Wires

Everything you need to know about no-clean flux-cored wires

Flux-cored wire contains flux integrated in its core, eliminating the need to apply flux separately. Solid wire requires external flux.

No-clean means that the flux residues are non-corrosive and can stay on the board without washing, unless the specification requires otherwise.

0.5–0.8 mm for SMD and small components, 0.8–1.2 mm for THT and general use, 1.5–3 mm for wiring, connectors and large cross-section conductors.

Shelf life depends on the flux and is stated in the technical sheet of each product. Store the spools in a dry place, at room temperature and in the original packaging.

No: flux-cored wires are for manual and robotic soldering. Wave and selective solder pots use bars and solid wire without flux, and the flux is applied to the board.

They are classes of the IPC J-STD-004 standard: RO indicates a rosin-based flux, L and M low or moderate activity; the digit 0 indicates halides below 0.05 % by weight, the digit 1 a higher content. ROL0 is the typical class of no-clean fluxes for electronics.

Yes, flux-cored wires are also used on the wire feed systems of soldering robots. Tell us the diameter and spool required by the system and the alloy to be used.

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