What grades are available?

Standard grades: Mark IV (40%) for tinning car panels, radiators, copper pipes; Mark I (40%) for larger solder deposits.

What sizes is it available in?

250g and 500g jars; 1kg, 2kg, and 5kg tubs.

How do I clean flux residues?

Water-soluble residues can be washed off with water or 1% hydrochloric acid solution.

Is SN100C fully RoHS compliant?

Yes, it's lead-free and meets all RoHS, REACH, and ELV standards.

What is the composition of SN100C?

Tin (Sn): Balance; Copper (Cu): 0.60 - 0.70%; Nickel (Ni): 0.04 - 0.06%; Germanium (Ge): 0.005 - 0.01%. Maximum impurities: Lead (Pb) 0.05%, and others as per industry standards.

What are the minimum order quantities?

20kg for direct from DKL; smaller quantities available via Surclean.

How do I get pricing?

Contact using one of the methods below—a member of our sales team can give you a quote.

In what product formats is SN100C solder available?

SN100C is available in 1kg bars, 2kg and 3.8kg autofeed ingots, chunks, and pellets. We also supply 125g and 250g tinman sticks, as well as blowpipe solder for specialist applications.

Radiator Repair Soldering Alloys & Fluxes | High-Performance

Q: What is Epatam Solder Paste?

Mixture of finely powdered solder, soldering flux, and suspension agent that prevents metal settling.

Epatam Solder Paste

admin — Mon, 16 Feb 2026 13:05:28 +0000

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Epatam Solder Paste

The DKL Epatam Solder Paste is a precise mixture of finely powdered solder, soldering flux, and suspension agent. Eliminates separate handling of solder and flux for convenient, economical application in mass production.

Grade	Flux %	Typical Applications	Packaging Options
Mark IV	40%	Tinning car panels/bodies Tinning radiators Copper pipes/joints	250g, 500g jars 1kg, 2kg, 5kg tubs
Mark I	40%	Same as Mark IV but larger solder deposits	250g, 500g jars 1kg, 2kg, 5kg tubs
Key Benefits	–	Precision application No tinning equipment needed Suitable for unskilled labour Mechanisable process	Water-soluble flux Easy cleaning
Distributed From	–	Grangemouth, Scotland	DKL Metals dispatch

Precision & Economy: Solder applied exactly where required – no expensive tinning equipment needed.

Mark IV Grade (40%)

Standard tinning applications

Ideal for car panels, radiators, and copper pipes. Provides consistent solder deposit with water-soluble flux for easy cleanup.

Automotive tinning
Radiator tinning
Copper pipe joints

Mark I Grade (40%)

Larger solder deposits

Same applications as Mark IV but formulated for heavier solder application where greater material volume is required.

Heavy-duty tinning
Larger deposits
Production proven

Easy Cleaning

Water-soluble flux residues

Flux residues wash off easily with water or 1% hydrochloric acid solution. Simplifies post-application clean-up in production environments.

Water cleanable
1% HCl option
Production friendly

Production Tinning Solutions

DKL Epatam Solder Paste enables mechanised, unskilled labour-friendly tinning processes. Available from Grangemouth, Scotland in convenient jar and tub packaging.

Pure Tin Solder Paint – A Great Lead-Free Alternative
Check Out HSE: Control of Lead at Work

Epatam Solder Paste FAQ

What is Epatam Solder Paste?
+

Sn60 Pb40 Solder Paint

admin — Wed, 14 Jan 2026 11:26:20 +0000

Solder paint for demanding tinning

DKL Metals Sn60 Pb40 solder paint gives engineers a reliable, creamy tin lead solder coating for demanding tinning work. Ideal for use on steel, cast iron, and copper alloys.

This 60/40 solder paint uses a highly active flux system. It quickly removes oxides and dirt from the metal surface. This leaves a bright, fully tinned finish. The surface is then ready for sweat soldering or white metal casting.

Engineered for difficult-to-wet metals

The solder paint combines finely powdered Sn60 Pb40 alloy with a powerful flux, which stays in stable suspension to ensure consistent metal loading in every brush stroke.

Use this tin lead solder paint to pre-tin cast iron housings, mild steel fabrications, and general engineering components where normal fluxes struggle to wet the metal evenly.

Tinning compound facilitates pre-tinning difficult metals. Its powerful flux and Sn60 Pb40 alloy create a stable suspension. It is ideal for cast iron, mild steel, and engineering parts. This solder paint ensures consistent metal loading.

Ideal for white metal bearings and BS 3332 work

This Sn60 Pb40 solder paint is an excellent choice for pre-tinning bearing shells before casting white metal bearing alloys, including BS 3332 grades used in diesel and locomotive applications.

The uniform tinned layer promotes a strong metallurgical bond between the backing steel and the poured bearing metal, which improves service life and reduces the risk of bond failure.

White metal bearing tinning: Pre-tin shells before casting traditional Babbitt and BS 3332 bearing alloys for rail, marine, and heavy industrial machinery.
Automotive restoration tinning: Prepare chassis brackets, suspension parts, and classic engine components for solder-loaded repairs and white metal work.
Steel and cast iron sweat soldering: Create a smooth solder layer on difficult substrates prior to attaching lugs, pads, and reinforcement plates.

Perfect for car body patches and radiator repair

Body shops and restoration specialists use Sn60 Pb40 solder paint for repairs. They apply it to tin car panels and structural joints. This step occurs before loading areas with body solder. It is ideal for classic vehicle restoration and permanent fixes.

It also works well on copper and brass radiator cores, where a tinned surface helps form sound, leak-free solder joints during repair or re-tubing work.

Classic vehicle restoration: Tins steel bodywork for traditional lead-loading techniques on vintage and historic vehicles.
Radiator and heat exchanger repair: Provides a uniform tinned layer on copper and brass components before soldering.
General engineering maintenance: Supports quick tinning of brackets, flanges, and housings in workshops and maintenance departments.

Key benefits of Sn60 Pb40 solder paint

High performance fluxing action promotes easy tinning of difficult surfaces, including steels and cast irons used in heavy engineering.
Creamy, brushable consistency keeps the metal powder in suspension and delivers a uniform solder coating without separation.
Versatile formulation suits pre-tinning for white metal bearings, car body patching, radiator repair, and general sweat soldering.
Available in practical 1 kg containers for workshop, foundry, and production line use, with larger packs on request.

Technical specifications of Sn60 Pb40 Solder Paint

Property	Value
Alloy composition	Sn60 Pb40 tin lead solder alloy
Product form	Creamy mixture of finely powdered solder and active flux
Melting range	183–188 °C
Recommended substrates	Cast iron, steels, copper, brass, and general engineering alloys
Typical applications	Pre-tinning bearing shells, car body patching, radiator repair, and sweat soldering
Standard pack size	1 kg solder paint containers

Solder Paint application guidance for best results

Clean the parts mechanically and chemically before applying the Sn60 Pb40 solder paint, as cleanliness ensures fast wetting and strong adhesion.

Apply the solder paint by brush or dipping, then heat the assembly evenly until the solder melts and flows, avoiding direct flame where possible.

After cooling, wash the corrosive flux residues away thoroughly using warm water, and use a citric acid wash with a deionised water rinse for critical bearing work.

Provide good fume extraction and always wear eye and skin protection when handling and heating this aggressive flux solder paint.

Order Sn60 Pb40 solder paint from DKL Metals

Source Sn60 Pb40 solder paint directly from DKL Metals, a UK manufacturer with ISO 9001:2015 and ISO 14001:2015 certified quality systems.

Contact the Grangemouth sales team for current pricing, technical advice on bearing tinning and car restoration work, or information on alternative tin lead solder paint grades.

After use, always remove flux residues completely to protect components and maintain long-term reliability in service.

Some useful links:

DKL Metals – BS 3332:1987 white metal bearing range
DKL Metals – Grade D solder for white metal bearings
Gov.uk – RoHS compliance and guidance

The post Sn60 Pb40 Solder Paint appeared first on DKL Metals Ltd.

Pure Tin Solder Paint

admin — Tue, 13 Jan 2026 11:20:20 +0000

Lead-Free Tinning Solution

Discover DKL Metals Pure Tin Solder Paint, the UK’s premier choice for high-quality, lead-free tinning. Engineers and manufacturers across industries apply this lead-free formula to achieve flawless, corrosion-resistant coatings on metals like steel, copper, and brass.

Superior Composition Drives Exceptional Performance

DKL Metals Pure Tin Solder Paint as a homogenous blend of fine powdered pure tin suspended in a highly active zinc chloride-based flux. This powerful formulation destroys minor surface contaminations chemically during tinning, delivering a highly solderable surface ready for further soldering or coating.

Apply the Sn100 paint effortlessly to pre-tin bearing shells before casting white metal linings or for diverse coating applications. Heat activates the tin, which melts, wets, and flows evenly over the metal surface thanks to the flux’s assistance.

Essential for Automotive Restoration & Repairs

In the automotive sector, this product is a critical tool for high-end vehicle restoration. It provides a superior, lead-free foundation for “tinning” steel body panels prior to lead-loading, ensuring a perfect metallurgical bond that prevents the shrinkage often seen with modern plastic fillers. Furthermore, this is an excellent Babbitt pre-tinning compound to ensure efficient tinning before the delicate process of Babbitt casting for vintage engine bearings.

Classic Car Bodywork: Creates a rust-resistant, seamless foundation for traditional body soldering.
Radiator Maintenance: Ideal for sealing and repairing vintage brass or copper radiator cores.
Electrical Reliability: Perfect for pre-tinning heavy-duty terminals to ensure maximum conductivity.

Key Benefits of Pure Tin Solder Paint

Lead-free pure tin formula ensures compliance with modern environmental standards and delivers corrosion resistance from pure tin’s natural properties.
Highly active zinc chloride flux removes oxides and contaminants, promoting superior wetting and adhesion for professional results.
Versatile for hot dip tinning, electroplating prep, bearing production, and engineering alloys like bronzes and gun metals.
Manufactured by DKL Metals, the UK’s foremost producer of lead-free solders, guaranteeing ISO 9001:2015 and ISO 14001:2015 certified quality.

Technical Specifications at a Glance

Property	Value
Composition	Fine pure tin powder in zinc chloride flux
Melting Point	221 °C
Density	7.28 g/cm³
Applications	Pre-tinning bearings, metal coatings, soldering prep

Order Your Pure Tin Solder Paint Today

Stock up on DKL Metals Pure Tin Solder Paint now and elevate your tinning processes with reliable, UK-made excellence. Contact our Grangemouth team for bulk orders, custom specifications, or expert advice on solder paint applications.

Post-application: Wash off corrosive flux residues thoroughly for optimal results and safety.

Some Useful Links!

DKL Metals – 3332:1987 White Metal Bearing Range
DKL Metals – Grade D Solder
Gov.uk – RoHS Compliance and Guidance

The post Pure Tin Solder Paint appeared first on DKL Metals Ltd.

Grade K Solder

admin — Thu, 04 Dec 2025 16:28:00 +0000

Short Melting Range for General Applications

DKL Metals supplies Grade K solder alloy. This premium 60/40 tin-lead alloy suits electrical and metalworking tasks. Buy 60/40 Sn/Pb solder alloy online in the UK now. It’s
relatively low melting point allows it to be used at temperatures where damage to heat sensitive components
could be experienced It has often been used in the electrical and metal working industries.

Chemical Composition of Grade K 60/40 Solder Alloy

Element	Percentage (% by weight)
Tin (Sn)	59.0 – 60.0
Lead (Pb)	Balance
Antimony (Sb)	0.50 max
Copper (Cu)	0.08 max
Zinc (Zn)	0.003 max
Iron (Fe)	0.02 max
Nickel (Ni)	–
Bismuth (Bi)	0.10 max
Cadmium (Cd)	0.005 max
Silver (Ag)	–
Gold (Au)	–
Arsenic (As)	0.03 max
Aluminium (Al)	0.001 max
Indium (In)	–
Phosphorus (P)	–

Key Features of DKL Grade K Leaded Solder

Narrow Melting Range Solder: Solidus hits 183°C. Liquidus reaches 188°C, providing a short 5°C plastic range. Ideal for many general soldering jobs where controlled cooling is possible.
High Tensile Strength: Delivers 5.98 kg/mm² at 21°C. Shear strength offers 3.94 kg/mm² on steel.
Excellent Flow Properties: Density measures 8.55 g/cm³. Wets copper, brass and mild steel easily.
ISO Standards Compliance: Meets ISO 9453:2020 Alloy 103. Matches former BS219 Grade K specs.

Applications for Grade K 60/40 Tin Lead Solder

Grade K excels in electrical connections, also can be used for sheet metal work too. Pairs with DKL Activated Fluxes. Choose Alcohol Resin flux for brass and copper.

Packaging Options

We stock blowpipe strips (85g), tinmans sticks (250g, 125g), 1 kg bars, and chunks.

DKL Quality Assurance

DKL Metals ensures every batch of Grade K solder meets stringent quality control standards, maintaining precise chemical composition and performance testing. Our ISO-compliant manufacturing process guarantees consistency and reliability for your critical soldering and repair applications.

Learn More About DKL Blowpipe Solder UK
Gov.uk – RoHS Compliance

The post Grade K Solder appeared first on DKL Metals Ltd.

Grade G Solder

admin — Tue, 02 Dec 2025 10:31:14 +0000

For Industrial and Electrical Applications

DKL Metals supplies Grade G solder, a trusted 40% tin lead alloy designed for industrial, electrical, and general-purpose soldering jobs. This alloy offers excellent wetting and flow characteristics combined with strong mechanical properties, making it ideal for manufacturing, repair, and metal fabrication processes requiring reliable solder joints with broad plastic range benefits.

Chemical Composition of Grade G Solder

Element	Percentage (% by weight)
Tin (Sn)	39.0 – 40.0
Lead (Pb)	Balance
Antimony (Sb)	0.40 max
Copper (Cu)	0.08 max
Zinc (Zn)	0.003 max
Iron (Fe)	0.02 max
Nickel (Ni)	–
Bismuth (Bi)	0.10 max
Cadmium (Cd)	0.005 max
Silver (Ag)	–
Gold (Au)	–
Arsenic (As)	0.03 max
Aluminium (Al)	0.001 max
Indium (In)	–
Phosphorus (P)	–

Key Features of Grade G Leaded Solder

General Application and Plastic Range: A 40% tin, 60% lead alloy suitable for general-purpose hand soldering and torch soldering applications, possessing a broad plastic (semi-liquid) range between its solidus point (183°C) and liquidus point (238°C) that eases joint formation, filling of large gaps, and metal positioning.
Wetting Performance: Exhibits good solder flow and wetting performance on copper, brass, and ferrous metals when used with appropriate (rosin or acid-based) fluxes for general electrical and metal fabrication applications.
Mechanical Properties: Grade G solder provides moderate mechanical strength ideal for general industrial maintenance and repair applications. While it delivers reliable joint performance in typical operating conditions, it exhibits lower resistance to creep compared to newer solder alloys. This means it is best suited for applications without prolonged exposure to high temperatures or continuous mechanical stress.
Industry Standards and Use: Conforms to historical and specific standards for lead-based solder alloys (e.g., ASTM B32 Sn40A, ISO 9453:2014 alloy n° 114) used in non-potable water plumbing, stained glass, and automotive radiator repair, but its use in new commercial electronics manufacturing is restricted in many regions due to the RoHS directive.

Typical Applications for Grade G Solder

Grade G solder alloy suits a wide range of applications including electrical component assembly, plumbing repairs, metalwork fabrication, and general industrial soldering tasks. Its higher tin content and plastic phase characteristics make it popular among manufacturers and maintenance engineers who require consistent, strong, and reliable solder joints.

Packaging and Supply

Available in bars, chunks, blowpipe solder, and tinman sticks, Grade G solder meets bespoke order requirements from small batch repairs to large production runs. Contact DKL Metals today to discuss your packaging preferences and volume needs for industrial solder alloys in the UK market.

Quality Commitment and Assurance

DKL Metals ensures every batch of Grade G solder meets stringent quality control standards, maintaining precise chemical composition and performance testing. Our ISO-compliant manufacturing process guarantees consistency and reliability for your critical soldering and repair applications.

Learn More!

DKL Metals – Blowpipe Solder

The post Grade G Solder appeared first on DKL Metals Ltd.

Sn97 Cu3 Industrial Solder

admin — Mon, 24 Nov 2025 13:03:21 +0000

Sn97 Cu3 industrial solder is a premium lead-free alloy made of 97% tin and 3% copper. It delivers strong, corrosion-resistant joints for industrial metal joining tasks. This solder is perfect for copper pipe fitting, radiator repairs, and HVAC system work.

Technical Specifications

Property	Temperature (°C)
Solidus	227
Liquidus	232
Melting Range	227 – 232
Working Range*	235 – 250

*Recommended soldering temperatures for optimal flow and joint quality.

Industrial Applications

Designed for demanding metal joining needs, Sn97 Cu3 excels in plumbing, radiator repairs, and HVAC installation. It bonds copper and brass reliably, ensuring long-lasting, leak-proof connections. Its lead-free composition meets environmental safety standards for professional use.

Electronic Soldering Uses

Besides industrial uses, Sn97Cu3 also suits general electronic soldering. It offers excellent conductivity and stable joints. This makes it ideal for circuit repairs and electronics manufacturing requiring lead-free solders.

Why Choose Sn97 Cu3 Industrial Solder?

High tin content gives superior wetting and bond strength
Corrosion resistant for durable, reliable joints
Lead-free alloy meets RoHS and environmental regulations
Versatile for plumbing, HVAC, radiator repairs, and electronics
Easy to use for professionals and hobbyists alike

Learn More

The post Sn97 Cu3 Industrial Solder appeared first on DKL Metals Ltd.

Grade H Solder

admin — Mon, 27 Oct 2025 12:03:04 +0000

Plumber’s Leaded Solder Alloy

Grade H is a classic plumber’s solder alloy containing 34–35% tin and a balance of lead, designed for plumbing, industrial repairs, and utility applications. This solder is widely specified for making durable, reversible joints in copper and brass pipework, and meets British Standard BS219 (Alloy Number 6 to BSEN29453; 1994, Alloy 115 BSEN29453:2006 – 2020). Its broad, pasty melting range between 183–247°C allows precise joint positioning and clean, professional results with excellent mechanical strength.

Chemical Composition

Element	Typical Range %
Tin (Sn)	34.0–35.0
Lead (Pb)	Balance
Antimony (Sb)	0.30 max
Copper (Cu)	0.08 max
Zinc (Zn)	0.003 max
Iron (Fe)	0.02 max
Bismuth (Bi)	0.10 max
Cadmium (Cd)	0.005 max
Arsenic (As)	0.03 max
Aluminium (Al)	0.001 max

Key Benefits

Broad melting range for versatile use and joint adjustment
Excellent flow and wetting on copper, brass, and plumbing materials
Complies with BS219 and BSEN29453 (Alloy Number 6, & Alloy 115) standards
Ideal for wiping, sweating, and utility repairs
Cost-effective compared to high tin solders and provides a strong, durable finish

Typical Applications

General plumbing in domestic and industrial systems
Utility company repairs and maintenance
Lead loading, wiping, and sweating pipe joints
Restoration work and metal joining requiring reliable yet reversible seals

Why Choose DKL Metals’ Grade H Solder?

DKL Metals delivers Grade H plumber’s solder with strict quality control for consistent melting behaviour and reliable joint strength. Our technical expertise and UK-based supply ensure you receive a product trusted across plumbing and utility sectors for both new installations and ongoing maintenance.

Learn More!

DKL Metals – Blowpipe Solder

The post Grade H Solder appeared first on DKL Metals Ltd.

Grade D Solder

admin — Fri, 17 Oct 2025 10:19:59 +0000

Plumber’s Leaded Solder Alloy

Grade D is a traditional plumber’s solder alloy that combines approximately 30% tin with 70% lead. Professional plumbers and restorers widely choose it to create permanent yet reversible joints in plumbing systems because it offers excellent mechanical strength and reliable flow characteristics. Furthermore, this alloy meets the stringent requirements of British Standard BS219 (Alloy No.15 to BSEN29453), giving users confidence in its durability and ease of use.

Chemical Composition

Element	Typical Range %
Tin (Sn)	29.0 – 30.0
Lead (Pb)	Balance
Antimony (Sb)	1.5 – 1.8
Copper (Cu)	0.08 max
Zinc (Zn)	0.003 max
Iron (Fe)	0.02 max
Bismuth (Bi)	0.25 max
Arsenic (As)	0.03 max
Aluminium (Al)	0.001 max

Key Benefits

Ideal for plumbing applications requiring durable, reversible joints
Specified to BS219 and BSEN29453 (Alloy No.15)
Wide melting range of approximately 185-257°C for flexible handling
Excellent wetting and flow on copper, brass, and other piping
Trusted by vehicle restorers for lead loading and repairs

Typical Applications

Making lead flashing and sealing joints in plumbing
Vehicle restoration lead loading and bodywork repair
General-purpose joining of copper and brass plumbing components

Why Choose DKL Metals’ Grade D Solder?

At DKL Metals, we supply Grade D plumber’s solder with strict quality control and consistent composition. Our product ensures reliable performance that meets professional standards, combined with expert UK-based customer support and fast delivery to keep your work on track.

Learn More!

DKL Metals – Blowpipe Solder

The post Grade D Solder appeared first on DKL Metals Ltd.

SN100C® Solder Alloy

admin — Sun, 16 Feb 2025 09:49:59 +0000

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Premium Lead-Free SN100C Solder Bar for Wave & Selective Soldering

SN100C is a premium lead-free solder alloy specifically engineered for high-performance wave and selective soldering applications. As a silver-free alloy, it delivers exceptional solderability and smooth wetting, resulting in bright, reliable solder joints that mimic the appearance of traditional leaded solder. This cost-effective formulation significantly reduces copper erosion and dross formation, ensuring high-quality results without the premium price of silver-bearing alloys. These characteristics make it the industry-leading choice for manufacturers seeking a high-performance SN100C solder bar.

Property	Value	Performance Benefit
Alloy Type	Lead-free, Silver-free	RoHS compliant, reduced material cost
Alloy System	Tin-Copper-Nickel-Germanium (Sn-Cu-Ni-Ge)	Optimised fluidity, strength, and oxidation control
Melting Point	Approx. 227°C – 230°C	Stable, repeatable wave/selective soldering
Joint Appearance	Smooth, bright fillets	Visual quality similar to traditional leaded solder
Process Compatibility	Wave and selective soldering	Ideal for high-volume PCB assembly lines
Application Scope	Automotive, telecoms, consumer, industrial controls	High reliability in demanding environments

Key Features & Benefits for PCB Assembly

RoHS compliant – Superior wetting – Cost-effective performance

Fully RoHS Compliant: A lead-free solution meeting all environmental and industrial standards.
Superior Solderability: Smooth wetting properties for clean, reliable joints.
Silver-Free Formulation: Reduces material costs while maintaining joint integrity.
Enhanced Reliability: Minimised copper erosion for long-term joint stability.
Process Versatility: Fully compatible with both wave and selective soldering machines.
Industry Standard: Ideal for high-volume electronics manufacturing and precision PCB assembly.

Technical Composition & Specifications of SN100C Solder

Stabilised Sn-Cu-Ni-Ge – Eutectic alloy – Reliable performance

The SN100C alloy is a stabilised Tin-Copper-Nickel-Germanium (Sn-Cu-Ni-Ge) eutectic formulation. The addition of Nickel and Germanium optimises fluid flow and mechanical strength while reducing oxidation.

Melting Point: Eutectic at approximately 227°C – 230°C.
Joint Appearance: Smooth, bright fillets (unlike the grainy finish of SAC305).
Operating Stability: Highly reliable for modern, high-density electronics assembly.

Industrial Applications

High-reliability electronics – Demanding environments – Thermal fatigue resistance

SN100C solder bars thrive in demanding commercial and industrial environments, powering critical systems in automotive electronics, telecommunications, consumer goods, and industrial controls. The alloy provides a safer workplace with low smoke and minimal fumes, while its excellent thermal fatigue resistance ensures durability in extreme operating conditions.

UK Exclusive: Licensed SN100C Manufacturer

Authentic SN100C – Licensed manufacture – Proven since 2002

DKL Metals Ltd is the only licensed manufacturer of SN100C solder bar in the UK. While the original patent has expired, we maintain the exclusive rights to the SN100C brand name and the official manufacturing license granted by Nihon Superior Co. Ltd of Japan.

Our partnership, established in 2002, guarantees that every bar produced in our UK facility adheres to the original proprietary formulation and meets rigorous quality benchmarks. By choosing DKL Metals, you are sourcing authentic SN100C backed by decades of metallurgical expertise and quality management systems certified to BS EN ISO 9001:2015.

Quick FAQ: SN100C Solder Bar

What is SN100C and why choose it over SAC305?