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. Defects in the 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 to prevent overheating the paste. Once the paste flows to remove the heat source.


Typical Applications for Solder Paste


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
MYR37.19
Each
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- Electric Paint Pen 10ml
RS Stock No. 555-232
Mfr. Part No.GEL FLUX MOB 39 - SERINGUE DE 10CC
BrandMBO
MYR94.85
Each
units
- - Syringe 10cm³
RS Stock No. 506-4302
Mfr. Part No.698840
BrandMulticore
MYR558.49
Each
units
Yes - Tub 500g
RS Stock No. 835-2693
Mfr. Part No.SKU-0216
MYR102.01
Each
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- Electric Paint Jar 50ml
RS Stock No. 832-9775
Mfr. Part No.1817240
BrandHenkel
MYR410.53
Each
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Yes Loctite HF212 SAC0307 AGS Jar 500g
RS Stock No. 832-9766
Mfr. Part No.1817229
BrandHenkel
MYR517.22
Each
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Yes Loctite HF212 97SC AGS Jar 500g
RS Stock No. 832-9750
Mfr. Part No.1791137
BrandHenkel
MYR616.20
Each
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Yes Loctite HF212 97SC DAP Jar 500g
RS Stock No. 146-2876
Mfr. Part No.4902P-15G
MYR102.26
Each
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Yes - Syringe 15g
RS Stock No. 146-2877
Mfr. Part No.4902P-25G
MYR136.47
Each
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Yes - Syringe 25g
RS Stock No. 146-6187
Mfr. Part No.SMD291AX
BrandCHIPQUIK
MYR79.58
Each
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- - Syringe 15g
RS Stock No. 146-6198
Mfr. Part No.SMD4300SNL10
BrandCHIPQUIK
MYR142.34
Each
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Yes - Syringe 35g
RS Stock No. 146-6189
Mfr. Part No.SMD291AX10T5
BrandCHIPQUIK
MYR166.69
Each
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- - Syringe 35g
RS Stock No. 146-6194
Mfr. Part No.SMD291SNL10T5
BrandCHIPQUIK
MYR207.51
Each
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Yes - Syringe 35g
RS Stock No. 146-6190
Mfr. Part No.SMD291AX250T3
BrandCHIPQUIK
MYR226.26
Each
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- - Jar 250g
RS Stock No. 146-6188
Mfr. Part No.SMD291AX10
BrandCHIPQUIK
MYR112.26
Each
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- - Syringe 35g
RS Stock No. 146-6195
Mfr. Part No.SMD291SNL250T3
BrandCHIPQUIK
MYR297.70
Each
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Yes - Jar 250g
RS Stock No. 146-6192
Mfr. Part No.SMD291SNL
BrandCHIPQUIK
MYR122.44
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Yes - Syringe 15g
RS Stock No. 146-6199
Mfr. Part No.SMDLTLFP
BrandCHIPQUIK
MYR95.19
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Yes - Syringe 15g
RS Stock No. 146-6191
Mfr. Part No.SMD291AX50T3
BrandCHIPQUIK
MYR74.77
Each
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- - Jar 50g
RS Stock No. 146-6202
Mfr. Part No.SMDLTLFP50T3
BrandCHIPQUIK
MYR119.06
Each
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Yes - Jar 50g
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Tack Flux no-clean water-washable 10cc syringe w/plunger & tip. Low viscosity no-clean water-washable synthetic paste flux. Has a pleasant odor. Ideal for all rework, solder, de-solder and reflowapplicationsNon-corrosive, non-conductive, no-clean, water-washableTack flux will not run all over PCB when appliedHas ...
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Solder Paste in jar 50g (T3) Sn63/Pb37 no clean 90.25% metal. Printing speeds up to 100mm/secLong stencil lifeWide process windowClear residueLow voidingExcellent wetting compatibility on most board finishesPrint gradeCompatible with enclosed print headsPasses BONO test.