Solderking Assembly Materials

What Solderking Assembly Materials does

Solderking Assembly Materials Limited is an independent, family-owned UK manufacturer of solder and chemical consumables for electronics assembly, founded in 2018 and headquartered in the United Kingdom. The company develops, manufactures and distributes a broad catalog of regulatory-compliant soldering materials including solder alloys (lead-free SAC305/SAC405 and leaded Sn63Pb37/Sn60Pb40/Sn40Pb60), cored solder wires (no-clean, water-soluble and acid-cored), solder pastes (including jet-dispensing formulations with deposit sizes down to 220µm), and a wide range of specialized fluxes marketed under the KingsFlux sub-brand covering stainless steel, cable and coil, industrial, pewter and tinning applications. Supporting the core consumables range are repair gels and rework fluxes, stencil cleaners and circuit neutralizers, masking products, and technical support services including solder analysis, X-ray inspection and dross collection.

All products are manufactured in-house in the UK from virgin raw materials using state-of-the-art production facilities, with compliance to ISO 9001:2015, RoHS, REACH, the Responsible Minerals Initiative, J-STD-004/004B, ISO 9453:2020 and J-STD-006. The business operates a direct B2B sales model selling to UK, European and worldwide customers through phone and email enquiry rather than via distributors or self-serve e-commerce. Pricing is not publicly disclosed and all engagements appear to be quote-based.

In 2025 Solderking received the King's Award for Enterprise (a UK national recognition for outstanding business achievement) and an Ecovadis Bronze Medal for sustainability, which together with the September 2019 ISO 9001:2015 certification form its principal third-party validations. The company has no disclosed subsidiaries, no external funding rounds, no parent company, and no publicly named customers or management team beyond the founder-owned structure.

Name

Solderking Assembly Materials

Legal name

Solderking Assembly Materials Limited

Website

https://solderking.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

Solderking Assembly Materials is a UK-based, family-owned manufacturer of solder alloys, cored wires, solder pastes and specialized fluxes for electronics and engineered parts assembly, selling directly to UK, European and worldwide B2B customers since 2018.

Ownership category

akta.pro rank

Product category

Electronic Soldering Materials

NAICS

Welding and Soldering Equipment Manufacturing (333992)

SIC

Wholesale-Durable Goods (5000)

akta.pro primary industry

Packaging Materials & Chemicals (Underfill/Mold Compound/Die Attach/Solders) (HDAHAGAM)

Keywords

• Solder manufacturing
• Electronics assembly materials
• Flux formulations
• Cored solder wires
• Lead-free solder paste

Headquarters

HQ city

Bridlington

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Solder and Assembly Materials Sales: Revenue is generated from the manufacture and distribution of soldering consumables including solder alloys, cored solder wires, solder pastes, fluxes, cleaning products, and masking materials. The company sells directly to UK, European and worldwide customers with products manufactured in-house in the UK.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Solderking is a UK-based manufacturer that develops, produces, and distributes solder consumables for electronics, electrical, and engineered parts assembly. Its portfolio spans solder alloys, cored solder wires, solder pastes (including jet-dispensing grades), specialised KingsFlux formulations, repair gels, cleaning products, and masking materials, all manufactured in-house in the United Kingdom and sold directly to UK, European, and worldwide B2B customers.

Product overview

Solderking Assembly Materials is a UK-based manufacturer offering a comprehensive portfolio of solder and assembly consumables for electronic, electrical, and engineered parts assembly. The product range centers on solder alloys (lead-free and leaded), cored solder wires (no clean, water soluble, acid types), and solder pastes (including jet dispensing formulations), complemented by specialized fluxes for various applications (no clean, stainless steel, cable/coil, industrial/pewter), cleaning products (stencil cleaners, circuit cleaners, neutralisers), repair materials (flux gels, rework fluxes), masking products (Kapton tape, temporary solder mask), and tinning paints/paste. The company also provides technical support services including solder analysis, X-ray inspection, and waste dross collection. All products are RoHS and REACH compliant with ISO 9001:2015 quality certification.

Differentiator

Problem solved

Functional benefit

Brands

• KingsFlux: Product line of fluxes including KingsFlux A80, KingsFlux M8, KingsFlux No.2, KingsFlux No.3, KingsFlux WL, KingsFlux A1, KingsFlux B1, and Rapid Flux Paste for various soldering applications including stainless steel, industrial, and pewter soldering.

Products and services

• Solder Alloys Virgin-material solder alloys in lead-free (SAC305, SAC405, SACXP0307, Sn100e) and leaded (Sn63Pb37, Sn60Pb40, Sn40Pb60) compositions, supplied in bar, wire, and pellet forms to ISO 9453:2020(E) and J-STD-006 standards, for electronics, electrical and engineered parts assembly.
• Cored Solder Wires Flux-cored solder wires including CXW-70 No Clean (ROL1), Water Soluble WS-OA (ORH1), and KingsFlux Acid Cored types for hand and robotic soldering, available in diameters from 3.25mm down to 0.27mm.
• Solder Pastes No-clean solder pastes including SK P2-5 SAC305 (T4), SK P2-80 enhanced activity (T4/T5), SK P9-10 Halogen Free (T4), and SnBiAg low-melting-point variants for fine pitch and miniaturised component applications.
• Jet Dispensing Solder Pastes Jetting solder pastes formulated for fine-pitch jet dispensing, including J-80 SAC305 delivering uniform dots as small as 220μm, available in SAC305 and Sn62Pb36Ag2 no-clean formulations.
• Repair Gels and Fluxes Flux gels and rework products including Halogen Free Flux Gel, G9 Flux Gel, and F3-15 Low Solids Rework Flux for component repair and rework operations on electronics assemblies.
• No Clean Fluxes No-clean soldering fluxes including SK F8 VOC-Free (ORL0), SK F4-7 alcohol foam (ROL0), and SK F4-8 (ORL0) for wave and selective soldering operations.
• Stencil Clean and Care Stencil cleaning products including SK C2-08 Stencil Wipes, SK C1-0 isopropanol cleaner, SK C2-08 hydrocarbon solvent cleaner, and SK C3-19 alcohol/glycol ether blend for stencil maintenance in SMT lines.
• Neutralisers and Circuit Cleaners Saponification cleaning solutions SK C1-22 and SK C1-84 for ultrasonic, spray-under-immersion, and manual cleaning of flux residues and solder paste from circuit boards and assemblies.
• Insulation and Solder Masking Kapton tape and dots for high-temperature masking plus Temporary Solder Mask latex-type masking agent for wave soldering pin protection.
• Cable and Coil Fluxes High-temperature fluxes for transformer and cable applications including D-64, D-32, KingsFlux No.30, KingsFlux FT-08w (water-based), and KingsFlux FT-08s (alcohol-based).
• Stainless Steel Fluxes Specialised fluxes for stainless steel soldering including KingsFlux A80, KingsFlux M8 (chloride-free), and KingsFlux Rapid Flux Paste for steel and iron fabrications.
• Industrial and Pewter Fluxes Industrial fluxes including KingsFlux No.2 (VOC-free water-based), KingsFlux No.3 (water soluble), KingsFlux WL (dip soldering), KingsFlux A1, and KingsFlux B1 for copper, brass, steel, and iron soldering applications.
• Tinning Paints and Paste High-activity zinc chloride flux mixed with solder powder for pre-tinning operations, available in free-flowing paint and higher-viscosity paste formulations with tin/silver, pure tin, and tin/bismuth alloys.
• Nozzle Tinning Flux KingsFlux No.2 VOC-free water-based active chloride flux for tinning selective-solder nozzles to ensure stable solder flow during selective soldering operations.
• Technical Support Services Technical services for customers including reflow profiling, solder analysis (purity monitoring to IPC tolerances), X-ray analysis for BGA/CSP inspection, and dross collection / waste solder paste removal.

Quantifiable outcome

• Virgin materials ensure impurity levels are kept to a minimum, resulting in faster wetting speeds and increased soldering performance
• +3 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Tamura Corporation: Japanese specialty chemicals and electronics materials company producing solder pastes, fluxes, and conductive materials. Comparable to Solderking in specialty soldering materials for electronics manufacturing.
• Stannol: German manufacturer of soldering materials including wires, pastes, fluxes, and chemicals for electronics and industrial soldering. Direct competitor with a similarly broad product portfolio and European heritage to Solderking.
• AIM Metals & Alloys: Manufacturer of solder alloys, fluxes, pastes, and custom alloy formulations serving electronics assembly worldwide. Direct competitor across Solderking's product range, with established global distribution.
• Indium Corporation: US-based specialty materials producer of indium-, tin-, and silver-based solders, fluxes, and pastes for electronics assembly. Direct competitor in solder chemistry, particularly in advanced packaging and high-reliability applications where SolderKing also competes.
• Nihon Superior: Japanese manufacturer of lead-free and leaded solders, fluxes, and soldering materials for electronics assembly. Direct competitor particularly in lead-free solder paste and alloy formulations.
• Kester (Illinois Tool Works): Long-established global manufacturer of solder pastes, fluxes, wire, and bar solder for electronics assembly. Direct competitor to Solderking in core solder consumables, with much greater scale and broader distribution.
• Balver Zinn (Cobar Group): European (German) manufacturer of solder alloys, fluxes, and pastes for electronics assembly, now part of the Cobar Group. Closely comparable to Solderking as a European specialty solder manufacturer with similar product breadth.
• Senju Metal Industry: Japanese manufacturer of solders, fluxes, and bonding materials for electronics assembly, with global distribution. Comparable to Solderking in offering comprehensive solder consumables, with much larger scale and Asian manufacturing base.
• MacDermid Alpha Electronics Solutions: One of the world's largest manufacturers of solder alloys, fluxes, pastes, and assembly materials for electronics manufacturing. Competes directly with Solderking across the full consumables portfolio, with a substantially larger global footprint and R&D budget.
• Heraeus Electronics: German specialty materials manufacturer producing solder pastes, bonding wires, and conductive inks for electronics assembly. Comparable to Solderking in European market positioning and specialty flux/paste formulation expertise.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/solder_king
• LinkedInlinkedin.com/company/solderking-assembly-materials-ltd
• Instagraminstagram.com/solderking_uk

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Solderking Assembly Materials