• Can of CS-90 Copper Anti-Seize Paste with red cap on a green background
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Action Can CS-90 Copper Anti-Seize Paste

Action Can CS-90 Copper Anti-Seize Paste

High-copper-content anti-seize paste preventing fastener seizing, galling, and corrosion across extreme temperatures from -30°C to +1100°C.

1754494

In stock

⚙ Ideal For

  • Threaded fastener and bolt protection
  • High-temperature exhaust connections
  • Spark plug and wheel bolt application
  • Hydraulic equipment and brake assemblies
  • Corrosive and coastal environments

✔ Benefits

  • Exceptionally high copper content
  • Extreme temperature -30°C to +1100°C
  • Non-hardening, non-dripping formulation
  • Water-resistant protective film
  • Lead and silicone-free safety profile
DETAILED DESCRIPTION →
Type
£13.99 GBP
£13.99 GBP
£11.66 Ex. VAT
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🚚 UK Shipping: Standard (£2.99) or FREE on orders over £75.

📦 Dispatched same-day if ordered before 3pm!

Shipping Information

What Are My Shipping Options?

In-Store Pickup

In-Store pickup is available on all purchase. Pickups are available Monday - Friday between the hours of 9:00–17:00. 

An email confirmation will be sent when your order is ready for collection. 

Free Shipping

We offer free Standard (2-3 Days) shipping on orders within the United Kingdom on orders over £100. Please note, some large items that require specialist courier companies, such as large mirrors and palleted items are excluded from this deal.

Shipping Fees

We also offer shipping at the following rates:

Standard-Size Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days -£23.99


Large Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days - £69.99

Most UK orders will be sent using Royal Mail, with larger items being sent with DPD.

International orders within the EU will normally be dispatched with Royal Mail, DPD, or UPS.

International orders to the rest of the world will normally be sent with DPD or UPS.

Please note, international delivery charges are very volatile and subject to change. We will do everything in our power to honour the delivery fee, however, in some cases, shipping may increase in price. In this event, you will be given the offer to pay the difference or cancel the order and receive a full refund.

Please note, we may be subject to various rules and restrictions in relation to some international deliveries, and you may be subject to additional taxes and duties over which we have no control. If such cases apply, you are responsible for complying with the laws applicable to the country where you live and will be responsible for any such additional costs or taxes.

Dispatch Times

Orders placed before 15:00 Monday - Friday will be shipped on the same day. 

Orders placed after this time will be shipped on the following business day,

Please note, we are closed at weekends, as well as English Bank Holidays.

Returns Policy

Our refund policy can be found at the following address: https://esupplyline.com/policies/refund-policy.

Further Information

You can contact us for further information on our shipping policies using the following:

Phone: 01953 711 881

Email: sales@esupplyline.com

Live Chat: Available on our website, Monday - Friday, 8:30 - 17:00.

Contact Form: https://esupplyline.com/pages/contact

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Action Can CS-90 Copper Anti-Seize Paste

Action Can CS-90 is a superior-quality copper anti-seize paste engineered to prevent seizing, galling, and corrosion of threaded fasteners even in extreme high-temperature conditions. The exceptionally high copper content combined with professional-grade rust and corrosion inhibitors creates a non-hardening, non-dripping durable film that enables easy assembly and disassembly after extended service intervals in the harshest environments.

Key Features

  • Exceptionally High Copper Content — Superior copper concentration provides maximum anti-seize effectiveness and thermal conductivity for extreme emperature protection.
  • Extreme Temperature Range — Protects fasteners across -30°Cto +1100°C - unmatched temperature capability from arctic to ultra-high-temperature applications.
  • Prevents Seizing and Galling — Reduces friction and prevents metal-to-metal bonding that causes seized fasteners and galling damage to threads and fastener heads.
  • Non-Hardening, Non-Dripping — Durable film formulation maintains lubricating properties without hardening or running off, ensuring consistent protection through service life.
  • Lead and Silicone-Free — Eliminates toxic lead whilst avoiding silicone contamination that interferes with subsequent coating or welding processes.
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Description

Fastener Seizing and Galling in Extreme Conditions

High-temperature environments—exhaust systems, engine compartments, industrial furnaces—cause fastener seizing through oxidation bonding. Galling occurs when soft metals scratch and bond during assembly, permanently deforming threads and making disassembly nearly impossible without destruction. Traditional anti-seize products fail at extreme temperatures; CS-90's formulation addresses this challenge through chemistry engineered for thermal extremes and metal-to-metal protection.

Copper Content and Thermal Conductivity

Copper is the primary active ingredient in anti-seize pastes—its high thermal conductivity allows heat distribution away from friction points, reducing local temperatures at bearing surfaces. CS-90's exceptionally high copper content maximises this thermal advantage, combined with copper's natural anti-seizing and anti-corrosion properties. The superior copper concentration delivers protection exceeding standard formulations.

Thread Lubricating Film for Assembly Ease

Fasteners often seize during assembly—torque application creates friction that heats threads, accelerating oxidation and bonding. CS-90's film reduces friction during assembly, decreasing peak temperatures at thread contact. After assembly, the protective film prevents seizing during subsequent thermal cycling and environmental exposure. This dual benefit—reduced assembly friction plus post-assembly seizure prevention—addresses the complete seizing lifecycle.

Galling Prevention Through Metal-to-Metal Isolation

Galling occurs when soft fastener metal (stainless steel, aluminium) scratches away, exposing fresh material that bonds to the mating surface. CS-90's film provides continuous separation between mating surfaces, preventing direct metal-to-metal contact that causes galling. This separation is particularly valuable for stainless steel and soft-metal fasteners prone to galling under torque.

Extreme-Temperature Stability from Arctic to Furnace Heat

Most anti-seize products fail at temperature extremes—thinning at high temperatures or hardening at low temperatures. CS-90's stability from -30°C to +1100°C is exceptional. Spark plugs in arctic conditions, exhaust manifold bolts at engine temperatures (+600°C+), and industrial furnace connections (+1000°C+) all remain protected. This temperature range is unmatched in commercial anti-seize products.

Corrosion Inhibitor Action in Harsh Environments

Professional-grade inhibitors actively prevent rust and corrosion through chemical protection of bare metal surfaces. In coastal environments, marine applications, and chemical exposure situations, these inhibitors provide secondary corrosion prevention if the primary anti-seize film is temporarily displaced. Water resistance ensures protection persists even with moisture exposure.

Lead and Silicone Elimination for Safety and Compatibility

Traditional anti-seize pastes often contained lead—toxic and prohibited in modern applications. Silicone contamination interferes with subsequent welding, painting, and coating processes. CS-90's formulation eliminates both concerns, providing safe application and full compatibility with downstream processes without additional cleaning steps.

More Information

Application Instructions

For Aerosol Application:

  1. Shake the aerosol can well before use. Mix the copper paste thoroughly to ensure uniform formulation distribution.
  2. Hold the can as upright as possible. Spray nozzles work optimally in vertical orientation for consistent delivery.
  3. Apply a thin, even coating to fasteners. Spray from a distance of 10–15 cm, moving slowly over the area to be treated.
  4. Use 2–3 application pauses over the fastener surface. Avoid excessive application; thin, even coating is optimal.
  5. Apply to thread surfaces and fastener heads. Ensure coverage of threads, bolt heads, and all surfaces requiring protection.
  6. Allow solvent to evaporate completely. Let the carrier evaporate, typically 10–15 minutes, before assembly.
  7. Assemble fasteners normally. Once evaporation is complete, assemble bolts and fasteners following standard procedures.

For Tub/Compound Application:

  1. Apply by brushing with a clean brush. Use a lint-free brush to apply CS-90 tub directly to fastener threads and surfaces.
  2. Apply by wiping with a lint-free cloth. For controlled application, wipe CS-90 onto fasteners using a clean, lint-free cloth.
  3. Apply by dipping fasteners directly into the tub. For small fasteners, dip directly into the compound for complete coverage.
  4. Work the paste into threads. Ensure thorough coverage of thread surfaces where metal-to-metal contact occurs.
  5. Allow solvent to evaporate before motion. Let the carrier evaporate completely (typically 10–15 minutes) before assembly or operation.

For Both Application Methods:

  1. Use appropriate fastener torque during assembly. Apply recommended torque specifications; CS-90 reduces friction slightly, so standard torque achieves proper clamp load.
  2. Allow curing time for extreme-temperature applications. For spark plugs, exhaust connections, and high-temperature fasteners, allow several hours for the protective film to fully stabilise before exposure to extreme heat.
  3. Perform assembly at normal temperature. Apply CS-90 and assemble fasteners at ambient temperature; avoid assembly of hot fasteners as this interferes with film formation.
  4. Clean assembly tools after application. Wipe tools and hands with a clean cloth to remove excess paste; excessive residue attracts dirt.
  5. Document application for critical fasteners. For critical or safety-related fasteners, record CS-90 application date and fastener location for maintenance tracking.
  6. Avoid mixing with other anti-seize products. Use CS-90 exclusively; mixing different products can reduce effectiveness.
  7. Store excess compound properly. Replace tub covers tightly; unused compound remains usable for extended periods with proper storage.

Specifications

Product Type Copper anti-seize paste for threaded fasteners

Format Aerosol spray can, compound tub

Container Sizes 500 mL aerosol, 500 g compound tub, 500 mL TwinSpray

Appearance Copper-coloured paste

Odour Faint mineral odour

Temperature Range -30°C to +1100°C (operational)

Solubility Insoluble in water

Coefficient of Friction μ at thread: 0.14; μ at head: 0.08 (Erichsen test, M12 thread)

Copper Content Exceptionally high—primary active ingredient

Formulation Non-hardening, non-dripping durable film

Inhibitor Profile Professional-grade rust and corrosion inhibitors

Water Resistance Water-resistant protective film

Chemical Composition Lead-free and silicone-free

Primary Function Anti-seize protection for threaded fasteners

Secondary Functions Galling prevention, corrosion protection, friction reduction

Application Method Aerosol spray (thin, even coating) or brush/wipe application (tub)

Fastener Compatibility Bolts, nuts, screws, spark plugs, wheel bolts, pins, hydraulic connections, exhaust connections

Equipment Applications Brakes, guides, brake adjusters, spark plugs, splines, wheel bolts, flanges, pipeline connections, exhaust systems, mechanical linkages, sliding sleeves and shafts

Evaporation Time 10–15 minutes before assembly or operation

Thermal Performance Maintains properties across extreme temperature range

Friction Reduction Reduces assembly friction for easier torque application

Post-Assembly Protection Prevents seizing during service life and thermal cycling

Environmental Stability Protection persists in coastal, chemical exposure, and harsh environments

Assembly Compatibility Works with standard fastener torque specifications (may reduce friction slightly)

Storage Temperature Normal ambient; below 50°C for aerosols

Shelf Life Minimum 6 years with proper storage

Market Sectors Fasteners & fixings, engineering, electrical MRO, agriculture, trade/pro-DIY

HS Code 2710.19

Documents

FAQs

What's the extreme temperature range limit of CS-90, and how does it perform at the +1100°C upper limit?

CS-90 protects fasteners up to +1100°C—an exceptional upper limit. At this extreme temperature, the copper paste maintains its protective film, preventing seizing and oxidation bonding. Performance is optimal from -30°C to +800°C; beyond +800°C, extreme heat dominates, but the protective action continues. Spark plugs, exhaust manifold bolts, and furnace connections all remain protected across the full temperature range.

Can CS-90 be mixed or used alongside other anti-seize products, or should it be used exclusively?

Use CS-90 exclusively—avoid mixing with other anti-seize products. Different formulations may interact unpredictably, reducing effectiveness. If switching from another product, clean fasteners thoroughly with a solvent cleaner to remove residual paste before applying CS-90. Mixing compromises the professional-grade inhibitor action and copper content synergy.

Will CS-90 reduce the torque specification for fasteners, or should I use standard torque values?

CS-90 reduces friction slightly, which can slightly reduce the torque required to achieve a target clamp load. However, professional guidance is to use manufacturer-specified torque values. The friction reduction is relatively small; using standard specifications produces slight over-clamp in most cases, which is safer than under-clamping. For critical applications where precise clamp load is essential, consult fastener specifications or engineering guidance.

Is CS-90 safe to use on fasteners for food, medical, or pharmaceutical equipment, or does it contain prohibited substances?

CS-90 is lead-free and silicone-free, eliminating the primary toxic or contaminating components. However, for food, medical, or pharmaceutical equipment, verify CS-90's suitability for your specific application. Regulatory requirements vary by industry—some industries require specific anti-seize formulations or specifically prohibit certain products. Consult application-specific regulations or equipment manufacturers before use in these sensitive applications.

Variant Variant total Quantity Price Variant total
500ml Aerosol1754494
500ml Aerosol1754494
£13.99/ea 		£0.00
£13.99/ea £0.00
500g Compound Tub1032004
500g Compound Tub1032004
£11.99/ea 		£0.00
£11.99/ea £0.00
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