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Product name Brand Price
P2020 SAC305 87% 15-25 T5 No Clean Solder Paste | 40g Syringe P2020 SAC305 87% 15-25 T5 No Clean Solder Paste | 40g Syringe SolderKing
£22.71 (£27.25 inc VAT)
£22.71 (£27.25 inc VAT)
P2020 SAC305 88% 15-25 T5 No Clean, Micro Connect Solder Paste - 500g Tub P2020 SAC305 88% 15-25 T5 No Clean, Micro Connect Solder Paste - 500g Tub SolderKing
£62.56 (£75.07 inc VAT)
£62.56 (£75.07 inc VAT)
P2-5 SnBiAg 90% 15-25 T5 No Clean, Liquid Free Solder Paste | 40g Manual Syringe | SolderKing P2-5 SnBiAg 90% 15-25 T5 No Clean, Liquid Free Solder Paste | 40g Manual Syringe | SolderKing SolderKing
£20.30 (£24.36 inc VAT)
£20.30 (£24.36 inc VAT)
P2-5 SnBiAg 90% 15-25 T5 No Clean, Liquid Free Solder Paste | 500g Tub | SolderKing P2-5 SnBiAg 90% 15-25 T5 No Clean, Liquid Free Solder Paste | 500g Tub | SolderKing SolderKing
£55.57 (£66.68 inc VAT)
£55.57 (£66.68 inc VAT)
P2020 Sn62 90% 20-38 T4 | No Clean Solder Paste | 40g Syringe P2020 Sn62 90% 20-38 T4 No Clean Leaded Solder Paste | 40g Manual Syringe | SolderKing SolderKing
£19.15 (£22.98 inc VAT)
£19.15 (£22.98 inc VAT)
P2020 Sn62 90% 20-38 T4 No Clean Solder Paste | 500g Tub | SolderKing P2020 Sn62 90% 20-38 T4 No Clean Leaded Solder Paste | 500g Tub | SolderKing SolderKing
£61.00 (£73.20 inc VAT)
£61.00 (£73.20 inc VAT)
P2-5 SAC305 87% 20-38 T4 No Clean Lead Free Solder Paste | 40g Manual Syringe P2-5 SAC305 87% 20-38 T4 No Clean Lead Free Solder Paste | 40g Manual Syringe | SolderKing SolderKing
£19.90 (£23.88 inc VAT)
£19.90 (£23.88 inc VAT)
P2-5 SAC305 88.5% 20-38 T4 No Clean Lead Free Solder Paste | 500g Tub | SolderKing P2-5 SAC305 88.5% 20-38 T4 No Clean Lead Free Solder Paste | 500g Tub | SolderKing SolderKing
£58.30 (£69.96 inc VAT)
£58.30 (£69.96 inc VAT)
Solder paste 25g Sn95.5Ag3.8Cu0.7 cartridge Solder paste 25g Sn95.5Ag3.8Cu0.7 cartridge MBO Call for price
Solder paste 75g Sn95.5Ag3.8Cu0.7 cartridge Solder paste 75g Sn95.5Ag3.8Cu0.7 cartridge MBO Call for price
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Solder Pastes For Electronics

Shop our range of high quality solder pastes, from leading solder manufacturing brands such as Almit and UK based SolderKing. Find a variety of package sizes and types to suit the quantity your application requires. For any bespoke requirements, contact our team today via email ([email protected]) or give us a call (023 8065 0065).

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Applications For Solder Paste

Solder paste is typically used in the large-scale manufacturing of PCBs, or prototype production. It is used in conjunction with a reflow oven or machine in the PCB assembly process.

This type of solder often provides a great, easy-to-use medium for solder, being used in most forms of SMTs.

 

What Is Solder Paste?

Solder paste is essentially powdered solder that is mixed with a flux material. It is applied to surface mount boards, prior to the either machine or manual pick and place process.

The flux that is in the paste will temporarily hold a component onto a board. When heat is then applied (usually through a reflow machine), the paste melts and creates a strong physical bond. Solder paste comes in the form of either a lead or tin alloy, whilst also requiring a stencil for applying to a PCB.

 

How To Store Your Solder Paste

To ensure that your solder paste retains the required properties for your application, you must store solder paste in the correct environment – prolonging it’s shelf life.

Firstly, it needs to be stored in an air tight container. This helps to prevent any possible oxidisation from occurring.

It must also be stored at a low temperature, which further aids in preventing oxidisation. Cold temperatures also help to reduce the degradation rate of the flux within the solder paste. Please ensure that the temperature the paste is stored at is not below freezing.

 

 

IPC Type & Particle Size

Solder paste is graded as per the size of small solder balls, into different type designations. This is not an exact process, so the Type designations display a range whereby 80% of the solder balls within the paste fall between. See table below:

IPC Type Designation Particle Size (mm)
Type 1 75 - 150
Type 2 45 - 75
Type 3 25 - 45
Type 4 20 - 38
Type 5 10 - 25
Type 6 5 - 15
Type 7 2 - 11
Type 8 2 - 8

 

 

Variations Of Solder Paste

Rosin Based – Made from a natural extract from pine trees, rosin. Can be cleaned if required after the soldering process, using a solvent (see Ambersil products).

Water Soluble Flux Based Solder Paste – A water-soluble flux, made from organic materials & glycol bases. There are many options for cleaning agents for these fluxes.

No Clean Solder Paste – Comprised of resins & various levels of solid residue. They save you cleaning costs, capital expenditure & floor space.

 

Contact Kaisertech For Solder Paste Requirements

Should you require any assistance with solder paste, contact our team today and we can help with any kind of bespoke requirements you may have.

Accessories For Solder Paste