Specification matching guideAnti-seize Paste for High-temperature Assembly LubricationData-backed match

OKS 2351 High-temperature Aluminium Paste Replacement Guide

OKS 2351 high-temperature aluminium paste specification matching guide for replacement screening. Key checks include -30°C to 1100°C and mineral oil chemistry.

Continuous lubrication
Documented
-30°C to 1100°C

Verified from source documents for working lubrication data.

View source document
Anti-seize / separation
Documented
up to 1100 °C separation

Verified as a separate anti-seize or separation capability.

View source document
Base oil technology
Documented
mineral oil

Source documents confirm this chemistry for match screening.

View source document
Thickener base
Documented
organic/inorganic solid lubricants

Source documents confirm this thickener base for compatibility review.

View source document
Updated
7/3/2026

Final product selection should be confirmed against current TDS, SDS, and operating conditions before quotation.

What is OKS 2351?

OKS 2351 is an anti-seize paste used for threaded connections, screw connections, and fittings. A useful replacement review should go beyond a simple cross-reference and verify the product definition, operating conditions, lubricant chemistry, and the reason a maintenance or procurement team needs another sourcing option.

The lubrication-temperature profile is -30°C to 1100°C, anti-seize separation is up to 1100 °C separation, base oil technology is mineral oil, the required thickener base is organic/inorganic solid lubricants. These details are the starting point for technical matching because they affect film stability, pumpability, separation risk, and service life under real equipment conditions.

Typical demand for OKS 2351 alternatives is driven by regional availability, long lead times, price changes, distributor coverage, or lubricant standardization across multiple plants. At this stage, the goal is to define a qualified technical requirement that can be reviewed against source documents, availability, and private-label sourcing options.

Understanding OKS 2351

Product type
Anti-seize paste
Common applications
Threaded connections, screw connections, fittings, flange connections, and plug-in connections
Typical industries
Chemical industry, Paper and packaging industry, Iron and steel industry, Glass and foundry industry, and Rubber and plastic processing
Lubrication temperature
-30°C to 1100°C
Separation temperature
up to 1100 °C separation
Base oil technology
mineral oil
Thickener base
organic/inorganic solid lubricants
Consistency requirement
Requires match based on load and application

Key performance characteristics

  • Anti-seize protection
  • Corrosion prevention
  • Water resistance
  • Wide temperature range
  • Anti-seize release behavior
  • Mineral oil base oil technology
  • Organic/inorganic solid lubricants thickener base
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Brand library

OKS models in this library

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Why OKS 2351 needs document-backed matching

  • Shutdown maintenance
  • Local supply gaps
  • Private-label match evaluation
  • Lead-time reduction
  • Maintenance standardization
  • Local stock or distributor coverage for OKS 2351 is limited.
  • Lead time has become too long for maintenance shutdown planning.

Specification match table

Lubrication temperature
OKS 2351
-30°C to 1100°C
Required match profile
-30°C to 1100°C
Separation temperature
OKS 2351
up to 1100 °C separation
Required match profile
up to 1100 °C separation
Base oil
OKS 2351
mineral oil
Required match profile
mineral oil
NLGI grade
OKS 2351
Requires match based on load and application
Required match profile
Submit load conditions for exact matching
Thickener
OKS 2351
organic/inorganic solid lubricants
Required match profile
organic/inorganic solid lubricants
Main application
OKS 2351
Threaded connections
Required match profile
Threaded connections
Industry fit
OKS 2351
Chemical industry
Required match profile
Chemical industry

Why temperature matching matters

For OKS 2351, temperature matters because threaded fasteners, flanges, and hot joints can be exposed to heat both during service and during shutdown or maintenance. Treat -30°C to 1100°C as the working lubrication range, while up to 1100 °C separation describes the anti-seize release behavior after heat exposure. Before sourcing an alternative, maintenance teams should check continuous temperature, peak temperature, shutdown heat soak, and whether the joint must keep assembly torque, prevent seizure, or allow later disassembly.

Why lubricant chemistry matters

The base oil technology is mineral oil. For an assembly paste like OKS 2351, chemistry affects anti-seize performance, corrosion protection, residue behavior, and how the paste behaves on threaded fasteners or flange faces after heat exposure. The proposed match should be reviewed for the same chemistry family, purge requirements, and whether it behaves like a true anti-seize paste rather than a general grease.

Why thickener and consistency matter

The required thickener base is organic/inorganic solid lubricants. For anti-seize or assembly paste use, consistency controls how well the paste stays on threads, resists sling-off, and covers flange faces during assembly and maintenance shutdowns. Too thin and the paste can migrate; too thick and it may not spread or release properly. A replacement that matches temperature but differs sharply in thickener or consistency may behave differently under vibration, load, or repeated heating cycles.

Where the matched specification applies

Threaded connections

OKS 2351 is evaluated as an anti-seize or assembly paste for threaded fasteners, bolts, flanges, and other metal joints where later disassembly matters. In these points the paste needs to stay on the contact surface, support assembly torque consistency, resist corrosion, and remain useful through maintenance intervals rather than just survive a temperature rating.

Screw connections

OKS 2351 can be assessed for screw connections where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is mineral oil, chemistry matching should be part of the approval step.

Fittings

OKS 2351 can be assessed for fittings where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is mineral oil, chemistry matching should be part of the approval step.

Flange connections

OKS 2351 is evaluated as an anti-seize or assembly paste for threaded fasteners, bolts, flanges, and other metal joints where later disassembly matters. In these points the paste needs to stay on the contact surface, support assembly torque consistency, resist corrosion, and remain useful through maintenance intervals rather than just survive a temperature rating.

Plug-in connections

OKS 2351 can be assessed for plug-in connections where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is mineral oil, chemistry matching should be part of the approval step.

Equipment context

  • threaded fasteners
  • sliding surfaces
  • sealing surfaces
  • threaded fasteners thread and contact surfaces

Industry use cases

Chemical industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 2351. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.

Paper and packaging industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 2351. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.

Iron and steel industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 2351. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.

Glass and foundry industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 2351. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.

Rubber and plastic processing: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 2351. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.

Municipal services: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 2351. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.

Specification verification checklist

  • 1Validate temperature range.
  • 2Validate base oil chemistry.
  • 3Validate thickener compatibility.
  • 4Validate substrate compatibility.
  • 5Validate separation or anti-seize temperature.
  • 6Validate operating duty cycle.
  • 7Verify the actual lubrication temperature range and whether separation temperature is required.
  • 8Confirm base oil, thickener, NLGI grade, and drop point against the current TDS.

Validation plan before approval

Confirm the real operating window

Do not approve a proposed match only because the published temperature range looks similar. Record the continuous running temperature, short peak temperature, startup and shutdown conditions, and whether the lubrication point is exposed to washdown, dust, process chemicals, or outdoor weather. This prevents a replacement from passing on paper while failing in the real machine environment.

Check material and lubricant compatibility

Before switching from OKS 2351, compare the current lubricant with the proposed product for base oil, thickener, additives, seal compatibility, coating compatibility, and whether old lubricant must be purged. If mixed lubricants are likely to remain in housings, bearings, threads, or sliding surfaces, a technical reviewer should review compatibility guidance before starting the changeover.

Run a controlled first-use review

For critical equipment, introduce any proposed match through a limited maintenance trial. Track temperature, noise, torque, wear marks, leakage, relubrication volume, and operator feedback over the first service interval. The result gives purchasing and engineering a shared basis for approval instead of relying only on a catalog match.

Procurement review points

  • Submit the requirement so a technical reviewer can classify any proposed match as an alternative, equivalent, or functional replacement for OKS 2351. These terms are not identical: an equivalent implies closer technical alignment, while an alternative may still need engineering review.
  • Request current TDS and SDS documents, packaging options, lead time, MOQ, shelf life, and country or region availability before changing the approved vendor list.
  • If the site uses OKS 2351 in multiple applications, separate the approval by lubrication point. A product that works for assembly threads may not automatically be approved for bearings, sliding surfaces, or high-load maintenance points.
  • Document the reason for change, the approval evidence, the first-use date, and the maintenance result. This makes future procurement audits and repeat orders easier.

Specification match request

This page focuses on document-backed specification matching for OKS 2351. The review prioritizes temperature range, base oil, thickener, NLGI or consistency, application duty, and evidence quality before a proposed match is used in purchasing or maintenance planning.

What a technical reviewer will match

  • The required match profile should preserve the lubrication-temperature requirement: -30°C to 1100°C.
  • If the use case depends on anti-seize release, the required match profile should also state up to 1100 °C separation capability.
  • Base oil technology is mineral oil, so our review should include chemistry evidence.
  • The required thickener base is organic/inorganic solid lubricants, which should be checked for compatibility and mechanical stability.
  • The application context includes threaded connections, screw connections, and fittings.
  • Actual suitability should be confirmed against manufacturer documentation and operating conditions after the requirement is submitted.
Temperature range
Required

Any proposed match should be checked against the lubrication-temperature requirement of -30°C to 1100°C and actual peak temperature.

Separation temperature
Required when anti-seize matters

For assembly paste use, the proposed match should state separation capability up to 1100 °C separation.

Base oil
Required

The proposed match should preserve the mineral oil chemistry unless engineering approves a change.

Thickener
Required

The organic/inorganic solid lubricants thickener base should be checked for compatibility, retention, and mechanical stability.

Application
Required

Application context includes threaded connections, screw connections, and fittings.

Validation required
Yes

Run document review and first-use monitoring before plant-wide changeover.

FAQ

Can OKS 2351 be replaced?

OKS 2351 can be replaced in many maintenance programs, but the replacement should be validated against the same technical envelope rather than approved by name alone. Start with temperature range, base oil chemistry, thickener system, NLGI or consistency data, and the exact application point. Then compare the latest TDS and SDS documents with the operating conditions on site. For critical equipment, use a controlled first-use trial before approving a plant-wide substitution.

What is equivalent to OKS 2351?

This page is designed to define the sourcing requirement rather than claim a fixed equivalent. A true equivalent needs evidence that the operating temperature, lubricant chemistry, thickener system, application duty, and material compatibility are close enough for the actual lubrication point. Share the TDS, SDS, and site duty cycle so a technical reviewer can prepare a documented match request before the approved product list is changed.

Is OKS 2351 an anti-seize paste?

Yes. In this page's sourcing context, OKS 2351 should be treated as an anti-seize assembly paste rather than a general-purpose bearing grease. That means the main questions are whether it stays on threaded fasteners and flange faces, whether it supports clean disassembly after heat exposure, and whether the replacement preserves the same anti-seize behavior under shutdown or maintenance conditions.

Can copper-based pastes replace OKS 2351?

Sometimes, but only after checking the substrate, operating temperature, corrosion risk, and any material restrictions from the OEM. Copper-based pastes can behave differently from synthetic or polycarbamide-based pastes, especially around galvanic corrosion, residue, and compatibility with certain metals or coatings. They should be treated as a technical match candidate, not as an automatic like-for-like substitute.

What temperature range should an equivalent support?

An equivalent should support the real operating envelope of the lubrication point, not just a headline number. For assembly or anti-seize use, the working lubrication range must cover the site temperature, and the separation or anti-seize behavior must also be stated if the joint has to release after heating. Always compare continuous temperature, peak temperature, shutdown heat soak, and service interval before approval.

How should replacement products be validated?

Validate replacements with document review first, then a limited trial. Check the TDS, SDS, application point, temperature range, chemistry, thickener, and substrate compatibility. After that, run a controlled first-use review on the real equipment and track torque, release behavior, wear, residue, leakage, and maintenance feedback. If the trial is stable, the proposed match can move from review to approval.

What documents should be checked before replacing OKS 2351?

Check the latest TDS, SDS, manufacturer product page, OEM maintenance guidance, and any site-specific lubrication standard before replacing OKS 2351. PDF source documents are especially important because industrial lubricant specifications are often more complete than product web pages. The review should capture temperature range, base oil, thickener, consistency, drop point if available, material compatibility, safety handling, and any limitations stated by the manufacturer.

What is the biggest risk when switching from OKS 2351?

The biggest risk is approving a substitute without validating the actual duty cycle against the -30°C to 1100°C temperature requirement, seal compatibility, contamination exposure, and relubrication interval. A replacement can look similar in a table but behave differently under heat, load, vibration, or mixed-lubricant conditions. For important equipment, the safer path is document review, engineering confirmation, and a monitored first-use trial before plant-wide rollout.

Technical source documents

Verified data points

Product data / Product description

OKS 2351: Aluminium paste for assembling screw and bolt threaded connections subjected to high temperatures and corrosive influences.

Description Aluminium paste for assembling screw and bolt threaded connections that are subjected to high temperatures and corrosive influences.

View source document
Product data / Product category

OKS 2351: anti-seize paste

Packaging Applications Assembly lubrication of machine parts, screw connections, fittings, flange and plug-in connections, guides, sliding and sealing surfaces of ovens, boilers, burners, motors, engines subject to high-temperature condi...

View source document
Product data / Separation temperature

OKS 2351: up to 1100 °C separation

Packaging Applications Assembly lubrication of machine parts, screw connections, fittings, flange and plug-in connections, guides, sliding and sealing surfaces of ovens, boilers, burners, motors, engines subject to high-temperature condi...

View source document
Product data / Lubrication temperature

OKS 2351: -30 °C to 1100 °C

Lower operating temperature °C -30 Upper operating temperature °C 1100

View source document
Product data / Source brand

OKS 2351: OKS

Best way is to clean mechanically first (for example, with a wire brush) and then with OKS 2610/OKS 2611 universal cleaning agent.

View source document
Product data / Thickener

OKS 2351: organic/inorganic solid lubricants

thickener organic/inorganic solid lubricants

View source document

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Send your operating conditions for a documented match

Include the current product, equipment, temperature range, load, speed, region, and any TDS/SDS files. The request helps classify the demand as an alternative, equivalent, or replacement case before quotation.

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