Solder Pastes

Solder paste is a type of solder used when manufacturing PCBs to connect surface mount components to pads on the board. The paste is a mixture of small solder spheres with flux.
The paste initially adheres components in place because of its stickiness. You then use heat to melt the paste to form a mechanical bond and an electrical connection.
Solder paste is applied to the board by stencil printing and the components are put in place by a pick and place machine or by hand.
Why use a solder paste?
Defects in circuit-board assembly are caused due to issues in the solder-paste printing process or due to defects in the solder paste. This can give short circuits, incomplete circuits, and head on pillow defects.
How to use Solder paste
• Remove oil, grease, polishing compound and any excessive oxides from the joint. Make sure that the joint is smooth, flat and free from any burs.
• Apply the solder paste to the top joint. The paste will not fill large gaps so make sure that the pieces to be soldered actually touch.
• Apply heat to the piece away from the joint, keep the heat source moving too prevent overheating the paste.
• Once the paste flows remove the heat source

Typical Applications
Solder pastes are used in mass production of PCBs and prototype PCB assembly.

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RS Stock No. 835-2699
Mfr. Part No.SKU-0018
SGD12.58
Each
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- Electric Paint Pen 10ml
RS Stock No. 832-9775
Mfr. Part No.1817240
BrandHenkel
SGD112.46
Each
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Yes Loctite HF212 SAC0307 AGS Jar 500g
RS Stock No. 835-2693
Mfr. Part No.SKU-0216
SGD35.10
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- Electric Paint Jar 50ml
RS Stock No. 555-232
Mfr. Part No.GEL FLUX MOB 39 - SERINGUE DE 10CC
BrandMBO
SGD30.25
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- - Syringe 10cm³
RS Stock No. 832-9766
Mfr. Part No.1817229
BrandHenkel
SGD147.63
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Yes Loctite HF212 97SC AGS Jar 500g
RS Stock No. 832-9750
Mfr. Part No.1791137
BrandHenkel
SGD168.09
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Yes Loctite HF212 97SC DAP Jar 500g
RS Stock No. 506-4302
Mfr. Part No.698840
BrandMulticore
SGD178.51
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Yes - Tub 500g
RS Stock No. 146-6191
Mfr. Part No.SMD291AX50T3
BrandCHIPQUIK
SGD22.97
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- - Jar 50g
RS Stock No. 146-6188
Mfr. Part No.SMD291AX10
BrandCHIPQUIK
SGD34.12
Each
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- - Syringe 35g
RS Stock No. 146-6195
Mfr. Part No.SMD291SNL250T3
BrandCHIPQUIK
SGD90.68
Each
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Yes - Jar 250g
New
RS Stock No. 189-4513
Mfr. Part No.SKU-0308
SGD565.00
Each
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- - - -
RS Stock No. 146-6190
Mfr. Part No.SMD291AX250T3
BrandCHIPQUIK
SGD68.85
Each
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- - Jar 250g
RS Stock No. 146-6192
Mfr. Part No.SMD291SNL
BrandCHIPQUIK
SGD25.95
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Yes - Syringe 15g
RS Stock No. 146-6202
Mfr. Part No.SMDLTLFP50T3
BrandCHIPQUIK
SGD36.49
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Yes - Jar 50g
RS Stock No. 146-6200
Mfr. Part No.SMDLTLFP10T5
BrandCHIPQUIK
SGD56.46
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Yes - Syringe 35g
RS Stock No. 146-6199
Mfr. Part No.SMDLTLFP
BrandCHIPQUIK
SGD29.38
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Yes - Syringe 15g
RS Stock No. 146-6198
Mfr. Part No.SMD4300SNL10
BrandCHIPQUIK
SGD43.79
Each
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Yes - Syringe 35g
RS Stock No. 146-6194
Mfr. Part No.SMD291SNL10T5
BrandCHIPQUIK
SGD63.39
Each
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Yes - Syringe 35g
RS Stock No. 146-6187
Mfr. Part No.SMD291AX
BrandCHIPQUIK
SGD24.41
Each
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- - Syringe 15g
RS Stock No. 146-6197
Mfr. Part No.SMD4300AX10
BrandCHIPQUIK
SGD37.34
Each
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- - Syringe 35g
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Tack Flux no clean in a 30cc syringe ...
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Tack Flux no clean in a 30cc syringe w/plunger & tip. Low viscosity no-clean synthetic paste flux. Has a pleasant odor. Ideal for all rework, solder, de-solder and reflow applicationsNon-corrosive, non-conductive, no-cleanTack flux will not run all over PCB when ...
Tack Flux no clean 5cc (for lead-free applications) ...
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Tack Flux no clean 5cc (for lead-free applications) w/plunger & tip. Low viscosity no-clean synthetic paste flux. Has a pleasant odor. Ideal for all rework, solder, de-solder and reflow applicationsNon-corrosive, non-conductive, no-cleanTack flux will not run all over PCB when ...
Tack Flux supplied in 6 2cc Squeeze Tubes ...
Description:
Tack Flux supplied in 6 2cc Squeeze Tubes (same flux as SMD291). Low viscosity no-clean synthetic paste flux. Has a pleasant odor. Ideal for all rework, solder, de-solder and reflow applications Non-corrosive, non-conductive, no-clean Tack flux will not run all ...
Tack Flux in 8cc Squeeze Tube (same flux ...
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