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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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In Stock CHIPQUIK Solder Paste, 15 g Syringe RS Stock No. 146-6187 Mfr. Part No. SMD291AX Subtotal (1 unit) £12.89(exc. VAT) £12.89/unit Quantity	CHIPQUIK	-	Solder Paste	-	Syringe	15 g	J-STD-006C, J-STD-004B, J-STD-005A, RoHS
In Stock CHIPQUIK Solder Paste, 250 g Jar RS Stock No. 286-2036 Mfr. Part No. TS391AX250 Subtotal (1 unit) £55.46(exc. VAT) £55.46/unit Quantity	CHIPQUIK	-	Solder Paste	-	Jar	250 g	J-STD-005A, J-STD-004B, J-STD-006C
In Stock CHIPQUIK Lead Free Solder Paste, 15 g Syringe RS Stock No. 286-2038 Mfr. Part No. TS391LT Subtotal (1 unit) £17.08(exc. VAT) £17.08/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Syringe	15 g	J-STD-004B, J-STD-006C, J-STD-005A, RoHS 3, REACH
In Stock CHIPQUIK Solder Paste, 50 g Jar RS Stock No. 146-6191 Mfr. Part No. SMD291AX50T3 Subtotal (1 unit) £11.97(exc. VAT) £11.97/unit Quantity	CHIPQUIK	-	Solder Paste	-	Jar	50 g	RoHS, J-STD-005A, J-STD-004B, J-STD-006C
In Stock CHIPQUIK Solder Paste, 250 g Jar RS Stock No. 146-6190 Mfr. Part No. SMD291AX250T3 Subtotal (1 unit) £38.66(exc. VAT) £38.66/unit Quantity	CHIPQUIK	-	Solder Paste	-	Jar	250 g	RoHS, J-STD-005A, J-STD-006C, J-STD-004B
In Stock CHIPQUIK Lead Free Solder Paste, 35 g Syringe RS Stock No. 286-2039 Mfr. Part No. TS391LT10 Subtotal (1 unit) £29.20(exc. VAT) £29.20/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Syringe	35 g	J-STD-006C, J-STD-005A, J-STD-004B, REACH, RoHS 3
In Stock MG Chemicals Lead Free Solder Paste, 50 ml Jar RS Stock No. 159-292 Mfr. Part No. 8341-50ML Subtotal (1 unit) £11.87(exc. VAT) £11.87/unit Quantity	MG Chemicals	Lead Free	Solder Paste	-	Jar	50 ml	RoHS, J-STD-004B, ISO 9001:2015
In Stock CHIPQUIK Solder Paste, 35 g Syringe RS Stock No. 146-6197 Mfr. Part No. SMD4300AX10 Subtotal (1 unit) £20.55(exc. VAT) £20.55/unit Quantity	CHIPQUIK	-	Solder Paste	-	Syringe	35 g	RoHS, J-STD-006C, J-STD-004B, J-STD-005A
In Stock CHIPQUIK Lead Free Solder Paste, 50 g Jar RS Stock No. 286-2041 Mfr. Part No. TS391LT50 Subtotal (1 unit) £22.05(exc. VAT) £22.05/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Jar	50 g	J-STD-005A, J-STD-006C, RoHS 3, J-STD-004B, REACH
In Stock CHIPQUIK Solder Paste, 35 g Syringe RS Stock No. 286-2035 Mfr. Part No. TS391AX10 Subtotal (1 unit) £27.19(exc. VAT) £27.19/unit Quantity	CHIPQUIK	-	Solder Paste	-	Syringe	35 g	J-STD-004B, J-STD-005A, J-STD-006C
In Stock CHIPQUIK Lead Free Solder Paste, 50 g Jar RS Stock No. 286-2045 Mfr. Part No. TS391SNL50 Subtotal (1 unit) £18.46(exc. VAT) £18.46/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Jar	50 g	J-STD-006C, RoHS 3, J-STD-005A, J-STD-004B, REACH
In Stock CHIPQUIK Lead Free Solder Paste, 15 g Syringe RS Stock No. 146-6199 Mfr. Part No. SMDLTLFP Subtotal (1 unit) £14.70(exc. VAT) £14.70/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Syringe	15 g	RoHS, J-STD-006C, J-STD-004B, J-STD-005A
In Stock CHIPQUIK Lead Free Solder Paste, 50 g Jar RS Stock No. 146-6202 Mfr. Part No. SMDLTLFP50T3 Subtotal (1 unit) £19.41(exc. VAT) £19.41/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Jar	50 g	J-STD-004B, J-STD-005A, RoHS, J-STD-006C
In Stock CHIPQUIK Solder Paste, 50 g Jar RS Stock No. 286-2037 Mfr. Part No. TS391AX50 Subtotal (1 unit) £13.98(exc. VAT) £13.98/unit Quantity	CHIPQUIK	-	Solder Paste	-	Jar	50 g	J-STD-005A, J-STD-006C, J-STD-004B
In Stock CHIPQUIK Lead Free Solder Paste, 15 g Syringe RS Stock No. 146-6192 Mfr. Part No. SMD291SNL Subtotal (1 unit) £14.22(exc. VAT) £14.22/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Syringe	15 g	J-STD-005A, J-STD-006C, J-STD-004B, RoHS
In Stock CHIPQUIK Lead Free Solder Paste, 50 g Jar RS Stock No. 146-6196 Mfr. Part No. SMD291SNL50T3 Subtotal (1 unit) £15.64(exc. VAT) £15.64/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Jar	50 g	J-STD-006C, J-STD-004B, RoHS, J-STD-005A
In Stock Loctite Lead Free Solder Paste, 500 g Container RS Stock No. 832-9775 Mfr. Part No. 1817240 Subtotal (1 unit) £60.70(exc. VAT) £60.70/unit Quantity	Loctite	Lead Free	Solder Paste	-	Container	500 g	No
In Stock CHIPQUIK Lead Free Solder Paste, 250 g Jar RS Stock No. 286-2040 Mfr. Part No. TS391LT250 Subtotal (1 unit) £85.75(exc. VAT) £85.75/unit Quantity	CHIPQUIK	Lead Free	Solder Paste	-	Jar	250 g	RoHS 3, REACH, J-STD-004B, J-STD-005A, J-STD-006C
In Stock CHIPQUIK Solder Paste, 15 g Syringe RS Stock No. 286-2034 Mfr. Part No. TS391AX Subtotal (1 unit) £16.00(exc. VAT) £16.00/unit Quantity	CHIPQUIK	-	Solder Paste	-	Syringe	15 g	J-STD-005A, J-STD-006C, J-STD-004B
In Stock Loctite Lead Free Solder Paste, 500 g Container RS Stock No. 234-9615 Mfr. Part No. 2002845 Subtotal (1 unit) £109.01(exc. VAT) £109.01/unit Quantity	Loctite	Lead Free	Solder Paste	-	Container	500 g	J-STD 006, J-STD-005A, ANSI/J-STD-004 Rev. B