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Raspberry Pi Monitor - 15,6'' 1920x1080px LCD IPS display HDMI + USB - red-white

Index: RPI-25728

Power supply multi-range Goobay 64569 3-12V/1,5A

Index: GOB-25361

Filament Polymaker PolyMax Tough PETG-ESD 1,75mm 0,5kg - Black

Index: PLM-25182

Filament Polymaker PolyLite PLA Pro 1,75mm 1kg - Orange

Index: PLM-25215

Shelly Blu Button Tough 1 - Bluetooth action and scene activation button - ivory

Index: INN-25237

LoRa 433MHz V1.1 module - for M5Stack Core developer modules - M5Stack M005-V11

Index: MSS-25333

PolyDryer Box - filament storage container - Polymaker PX01003

Index: PLM-24951

Limit switch 50mm - Pololu 1403

Index: PLL-00017

All new products

Car Fuse Midi 30A - 10pcs

Index: KAB-08816

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Stepper Motor JK42HS48-1684 200 steps 2,8V/1,68A/0,43Nm

Index: MOT-03614

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RGB Encoder Wheel Breakout - encoder module - 24 RGB LEDs - PiMoroni PIM673

Index: PIM-23499

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Weather Shield - weather station for Arduino - SparkFun DEV-13956

Index: SPF-10199

On sale!
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Filament Print-Me Smooth ABS 1,75mm 0,2kg - White

Index: PRI-17804

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Set of ceramic capacitors - 80pcs.

Index: AKS-23034

On sale!
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DC/AC step-up converter 24VDC / 230VAC 350/500W - sinus - Volt IPS-500

Converter DC/AC step-up 24VDC / 230VAC 350/500W - sinus - Volt IPS-500

Index: VLT-16439

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Pico:ed V2 - development board with RP2040 microcontroller - Elecfreaks EF01038

Index: EFS-22183

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Gravity - GP8501 2-channel 0-2.5/VCC V - PWM DAC - DFR1037

Index: DFR-24118

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RGB LED strip WS2811 - digital, addressed - IP65 48 LED/m, 12W/m, 12V - 5m

Index: LED-05448

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M3H550 - triple motor controller DC 22V/1,7A - for Raspberry Pi - soldered - Pololu 5071

Index: PLL-23647

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Qwiic - Shield for Arduino - SparkFun DEV-14352

Index: SPF-10103

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Rosin / resin and fluxes

Flux and rosin are products that every soldering iron should be equipped with. They are basic products, necessary during soldering work. During soldering there is a risk that a coating of non-metallic compounds will form on the treated surface, usually it is the effect of the metal's reaction with the atmosphere. It has an adverse effect on the bonding effect, because it makes it difficult to form a solid weld. However, we can remove the coating, for which the flux is intended. This makes the surfaces to be bonded perfectly clean. At the same time, the fluxes protect against the formation of oxides during soldering. The advantage of using the flux is also the possibility to use high current without the risk of high arc radiation. This translates into efficient and safe work. Another task of the flux is to reduce the risk of chipping on brazed materials. In our store's offer there are fluxes and rosin with different parameters and properties available. You can adjust them individually to the working conditions, soldered elements and your own preferences.

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Products: 23

Rosin 40ml

Flux with the addition of activators to facilitate soldering.

4.9 (31)

Index: NSZ-00169

Index: NSZ-00169

Soldering flux RF800 15ml

Liquid flux type "no clean". The package has a volume of 15 ml.

4.9 (29)

Index: CHE-00433

Index: CHE-00433

Gel flux - 1,4ml syringe

Concentrated rosin flux class RMA is designed for SMD assembly.

5.0 (8)

Index: CHE-00632

Index: CHE-00632

Soldering acid with brush 35ml

Brazing acid used when working with nickel-plated surfaces . There is a convenient brush on the cap to facilitate even distribution of the preparation. The package has a...

Index: TRP-23600

Index: TRP-23600

Rosin 100ml

Flux with the addition of activators to facilitate soldering.

5.0 (16)

Index: NSZ-02424

Index: NSZ-02424

Flux RF800 100ml

Liquid flux type "no clean". 100 ml p acking .

4.9 (21)

Index: CHE-04226

Index: CHE-04226

Flux Pen TK83 - 8ml

Liquid, medium-active flux which is an alcohol solution of rosin with the addition of organic activators. Designed for installation of SMD and BGA and soldering in tight...

5.0 (7)

Index: TRP-12441

Index: TRP-12441

Soldering acid 100ml

High-quality soldering acid ensuring a perfect finish when soldering on nickel-plated surfaces . The offered preparation is placed in a 100 ml package.

Index: TRP-23602

Index: TRP-23602

Flux TK83 with brush - 100ml

Universal TK83 flux with a medium-active, alcoholic rosin formula with the addition of organic activators. For even distribution of the preparation, the bottle is equipped...

Index: TRP-23615

Index: TRP-23615

LP1 flux for SMD soldering - 100ml

LP1 flux , offered by TermoPasty , is a colorless liquid with a slightly straw color, which is characterized by a sharp, alcoholic odor and low density - 0.8 g/cm³ at a...

5.0 (3)

Index: TRP-23611

Index: TRP-23611

AG5 flux for SMD board soldering - 100ml

AG5 flux for soldering SMD boards from TermoPasty . It is a transparent liquid with an alcohol-resinous odor . For easier application, the bottle is equipped with a brush....

Index: TRP-23610

Index: TRP-23610

Rosin 20ml

Flux with activators for easy soldering.

5.0 (3)

Index: NSZ-00587

Index: NSZ-00587

Gel flux -10ml

Gel flux thickened, designed for surface mounting of SMD elements. RMA class colophony flux does not require washing after soldering. It is in the form of a light brown...

5.0 (10)

Index: TRP-16727

Index: TRP-16727

Soldering acid with brush 50ml

A product designed to work with nickel-plated surfaces , removing residues and ensuring a perfect finish. The brush placed on the cap allows you to conveniently distribute...

Index: TRP-23601

Index: TRP-23601

Flux RF800 1L

RF800 flux is a medium-active rosin solution, irreplaceable in the SMD machine soldering process. Perfectly wets copper and tin-lead surfaces, ensuring reliability and...

5.0 (1)

Index: TRP-23614

Index: TRP-23614

Flux TS81 for soldering steel - 100ml

TS81 flux is a modern steel brazing agent with a unique formula that facilitates cleaning and ensures easy removal of residues . The product was placed in a 100 ml package.

Index: TRP-23617

Index: TRP-23617

Gel flux - 14ml syringe

Thickened rosin flux of RMA class, intended for SMD mounting. It comes in a syringe with volume of 14 ml.

5.0 (4)

Index: CHE-05692

Index: CHE-05692

Soldering acid with brush 100ml

Brazing acid used when working with nickel-plated surfaces . Even distribution is facilitated by the brush placed on the cap. The package contains 100 ml of soldering acid.

5.0 (1)

Index: TRP-23603

Index: TRP-23603

AC 81/N flux - calcium-free - 100ml

AC 81/N flux is a modern product designed to ensure effectiveness during soldering. As a 2.1.2/3 A flux, it is characterized by high activity. It is an aqueous solution...

4.0 (1)

Index: TRP-23609

Index: TRP-23609

Reduced price
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Flux TK83 - 500ml

Universal TK83 flux with a medium-active, alcoholic rosin formula with the addition of organic activators. The preparation was placed in a 500 ml package, which ensures...

Index: TRP-23616

Index: TRP-23616

Flux TS81 for soldering steel - 500ml

TS81 flux is a modern steel brazing agent with a unique formula that facilitates cleaning and ensures easy removal of residues . The product was placed in a 500 ml package.

Index: TRP-23618

Index: TRP-23618

Reduced price
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Flux RF800 with brush 50ml

Liquid flux type "no clean" with a brush. Packing volume of 50 ml.

4.9 (27)

Index: TRP-10894

Index: TRP-10894

Flux TK83 for soldering SMD - 50ml

TK83 flux is an alcoholic colophony solution with the addition of organic activators, designed for soldering at a temperature of 280°C maximum. The product is a liquid,...

4.9 (33)

Index: TRP-15858

Index: TRP-15858

Is soldering flux more important than tin?

The answer to this question may be surprising - but to some extent the answer can be affirmative. Although uneven tin and a good quality alloy significantly improve the soldering results, even old or improperly made connections can often be re-soldered without even using a piece of new tin - the main role is played by the soldering flux.

Flux, i.e. the proper course of soldering

Even the best solder with the addition of organic activators without flux (e.g. due to too long heating or using too high a temperature) will quickly lose its original properties (e.g. in the case of high current). Although you should not overdo it with flux - it is necessary for every solder, which can be particularly noticeable in SMD assembly (in the surface SMD soldering process). But which soldering flux should you choose?

Types of fluxes

The choice of flux (e.g. for soldering copper) is often dictated by the previous preferences and experience of the installer, but some general principles can be indicated. The simplest and most frequently used flux by many people is ordinary activated rosin - nothing more than a high-purity resin, enriched with chemical compounds that make soldering much easier. Heated solder rosin hardens quickly, and after cooling it becomes brittle, which can be seen especially on older boards.

Working with gel and liquid fluxes is completely different. The former are perfect for SMD soldering, because when applied to the board they retain their properties for a long time, melting only near the tip. Liquid fluxes evaporate very quickly, but therefore do not leave any traces, which are still quite visible in the case of gel fluxes. Both types of fluxes mentioned above often come in the "no clean" variety, which means that they do not require washing the tiles after use (although this is good practice in most cases).

Fluxes available at the Botland store

In this category you will find various types of fluxes, perfect for all assembly and repair works. For traditionalists, we have classic rosin in cans of 20, 40 and 100 g. People involved in SMD assembly will especially appreciate fluxes in gel (e.g. the excellent Flux RMA 223), in the form of a pen (Flux Pen TK83) and liquid (RF800, available in various packages from 15 ml to 100 ml). For professionals, we also have high-class, thickened gel flux from AG Termopasty, packed in convenient syringes.

Rosin and flux are one of the basic elements of good soldering. We also offer high-quality soldering pastes that ensure smooth soldering. We also offer solder pastes intended for both SMD and THT soldering. Solder paste may additionally contain tin, which enriches its composition. Selected products have a lower melting point, which ensures a higher level of safety during soft soldering. Buy them at the Botland store - a proven supplier.

Rosins and fluxes - FAQ

Why is flux used?

Flux is a mandatory accessory in the workshop of soldering beginners. It usually comes in the form of a paste. It removes oxides and impurities, prevents the formation of new ones, facilitates melting and improves soldering fluidity, and also increases the moisture of the solder on the brazed material. Its residues should be removed to prevent corrosion.

Which flux for SMD?

SMD surface soldering is associated with precision and minimalism. Thickened rosin fluxes work well here because they allow easy application to the material. Gel fluxes applied to the board will maintain their properties for a long time, such as, for example, they do not require cleaning after soldering and are non-corrosive. Flux RMA 223 .

Is rosin a flux?

Rosin is a soft, natural resin containing appropriate activator compounds. It is created after distillation of turpentine from resin - most often pine resin. It is used as an excellent flux for tin-lead soldering. Other materials used as fluxes include silica, dolomite, lime, borax and fluorspar.