Xiamen Sinolook Oil Co., Ltd

Specialty Lubricant Additives Supplier — LABSA, PIBSA & Thiadiazole | Sinolook

★ Intermediates & Niche Functional Additives
The building blocks and niche chemistries behind finished lubricant additives.

LABSA and synthetic dialkylbenzene sulfonic acid (sulfonate detergent intermediates), PIBSA (dispersant intermediate) and thiadiazole metal deactivators — specialty additives and building blocks for additive manufacturers and blenders.

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4
Specialty Products
3
Key Intermediates
Cu
Metal Deactivation
60+
Countries Served
About Specialty Additives

Building blocks and niche chemistries for additive manufacturers

Beyond the main additive families lies a layer of specialty chemicals — the intermediates that additives are made from, and niche functional additives for specific problems. These serve additive manufacturers and blenders, not just finished-oil formulators.

Sinolook's specialty range covers two roles. Intermediates — LABSA and synthetic dialkylbenzene sulfonic acid (the raw materials neutralized into sulfonate detergents), and PIBSA (the building block for PIBSI dispersants) — let additive producers manufacture their own packages. Direct-use functional additives — thiadiazole metal deactivators — protect copper and non-ferrous metals from corrosion in gear oils, greases and metal-working fluids. All four supplied at bulk scale with full documentation and consistent batch-to-batch purity.

PIBSA polyisobutylene succinic anhydride dispersant intermediate sample
Where These Products Fit

Intermediate or finished additive — know what you're buying

Three of these products are intermediates — building blocks that additive manufacturers convert into finished detergents and dispersants. One (thiadiazole) is a direct-use functional additive. This map shows where each fits in the value chain.

Specialty additives in the value chain Intermediates (left) → finished additives (right) · plus a direct-use functional additive INTERMEDIATE (raw material) PROCESS FINISHED ADDITIVE (downstream) LABSA + Synthetic DABSA linear / dialkylbenzene sulfonic acid neutralize with Ca / Mg / Ba + overbase Sulfonate Detergents → Ca / Mg / Ba sulfonate (engine oil) PIBSA polyisobutylene succinic anhydride react with polyamine PIBSI Dispersants → ashless succinimide (engine oil) Thiadiazole Metal Deactivator — DIRECT-USE FUNCTIONAL ADDITIVE No further processing needed — added directly to gear oils, greases, hydraulic & metal-working fluids Protects copper & non-ferrous metals · neutralizes active sulphur from EP additives

If you manufacture additives, the intermediates (LABSA, DABSA, PIBSA) are your building blocks. If you blend finished oils, thiadiazole is ready to dose directly. Sinolook supplies both the intermediates and the finished detergents / dispersants they become — so you can source at whichever stage suits you.

Our Specialty Additive Range

Three intermediates plus a metal deactivator

High-purity sulfonic acid and PIBSA intermediates for additive manufacturers, plus thiadiazole metal deactivator for direct use — click any product for full TDS and bulk-supply quotation.

LABSA linear alkylbenzene sulfonic acid intermediate
LABSA · Intermediate

LABSA (Linear Alkylbenzene Sulfonic Acid)

Sulfonic acid · detergent feedstock · Per TDS

The key intermediate for manufacturing sulfonate detergents — neutralized with Ca/Mg/Ba and over-based. Also a versatile anionic surfactant raw material.

View details
Synthetic dialkylbenzene sulfonic acid intermediate
DABSA · Intermediate

Synthetic Dialkylbenzene Sulfonic Acid

Synthetic sulfonic acid · Per TDS

Premium synthetic sulfonic acid for high-performance sulfonate detergents and rust preventives. Higher purity and consistency than natural sulfonic acids.

View details
PIBSA polyisobutylene succinic anhydride dispersant intermediate
PIBSA · Intermediate

PIBSA (Polyisobutylene Succinic Anhydride)

Dispersant feedstock · Per TDS

The intermediate for PIBSI ashless dispersants — reacted with polyamine to make succinimide. Also used directly as an emulsifier and rust inhibitor.

View details
Thiadiazole DMTD metal deactivator copper corrosion inhibitor
Thiadiazole · Direct-Use

Thiadiazole Metal Deactivator

DMTD derivative · Cu corrosion inhibitor · Per TDS

Protects copper and non-ferrous metals from corrosion and neutralizes active sulphur from EP additives. For gear oils, greases, hydraulic and metal-working fluids.

View details
Selection Guide

Four specialty products at a glance

Quick comparison across all four Sinolook specialty additives and intermediates. Click any row to open the full TDS.

Product Role Becomes / Function Bought By TDS
LABSA Intermediate → Sulfonate detergent / surfactant Additive manufacturers View →
Synthetic Dialkylbenzene Sulfonic Acid Intermediate → Premium sulfonate / rust preventive Additive manufacturers View →
PIBSA ★ Intermediate → PIBSI dispersant / emulsifier Dispersant manufacturers View →
Thiadiazole ★ Direct-use additive Cu / non-ferrous metal deactivation Lubricant blenders View →

Intermediates are building blocks for finished additives; thiadiazole is dosed directly into finished oils. Refer to each product TDS for specifications.

Where Specialty Additives End Up

From additive plants to finished industrial oils

Intermediates flow into additive manufacturing; thiadiazole flows into finished industrial oils needing copper protection.

LABSA PIBSA intermediates for additive manufacturing Intermediates
Additive Manufacturing
LABSA · DABSA · PIBSA building blocks
 Thiadiazole metal deactivator for industrial gear oil and grease
Industrial Gear & Grease
Thiadiazole · copper protection
 Thiadiazole for hydraulic fluid and metal working fluid copper corrosion
Hydraulic & MWF
Thiadiazole · active sulphur control
Why Sinolook Specialty Additives

Intermediate or finished additive — source at either stage

Sinolook is unusual in supplying both the intermediates and the finished additives they become. Whether you manufacture your own packages or blend finished oils, you can source at the stage that suits your operation.

ADVANTAGE 01

Intermediate + finished additive supply

Buy LABSA/DABSA and make your own sulfonate, or buy our finished sulfonate detergents. Buy PIBSA and make your own dispersant, or buy finished PIBSI. Your choice.

ADVANTAGE 02

Consistent intermediate purity

Intermediates feed directly into your additive synthesis — so batch-to-batch purity and consistency are critical. Every batch is verified to keep your downstream process stable.

ADVANTAGE 03

Copper protection expertise

Thiadiazole metal deactivators are essential when EP additives contain active sulphur — we help you balance EP performance against copper corrosion in gear, grease and MWF formulations.

ADVANTAGE 04

Bulk scale, full documentation

Intermediates are used at large scale — supplied in drums, IBC totes, flexitanks and ISO tanks with TDS, MSDS and COA, across 60+ countries.

Related Additive Categories

The finished additives these intermediates become

LABSA and DABSA become sulfonate detergents; PIBSA becomes PIBSI dispersants. Source the intermediates here — or the finished additives directly:

Sulfonate detergents made from LABSA sulfonic acid intermediate
Downstream Product

Sulfonate Detergents

The finished detergents made from LABSA and DABSA — 7 grades of Ca, Mg, Ba and Zn sulfonates for engine and industrial oils.
PIBSI dispersants made from PIBSA intermediate
Downstream Product

Ashless Dispersants

The finished PIBSI dispersants made from PIBSA — 7 grades of mono, bis, poly, borated and low-viscosity succinimide.
FAQ

Frequently asked questions about specialty additives

What are specialty lubricant additives?
Specialty lubricant additives are intermediates and niche-function chemicals that sit outside the main additive families (detergents, dispersants, anti-wear, antioxidants). Sinolook's specialty range covers two categories:
1. Intermediates used to manufacture finished additives — LABSA and synthetic dialkylbenzene sulfonic acid (raw materials for sulfonate detergents) and PIBSA (the intermediate for PIBSI dispersants);
2. Direct-use functional additives such as thiadiazole metal deactivators and copper corrosion inhibitors.

These products serve additive manufacturers, blenders and formulators who need specific building blocks or niche performance chemistries.
What is LABSA and what is it used for?
LABSA (Linear Alkylbenzene Sulfonic Acid) is an anionic sulfonic acid produced by sulfonating linear alkylbenzene. In the lubricant industry it is the key intermediate for manufacturing sulfonate detergents — it is neutralized with calcium, magnesium or barium hydroxide and over-based to produce the detergent additives used in engine oils. LABSA is also widely used as a surfactant raw material outside lubricants (detergents, cleaners). Sinolook supplies LABSA as a high-purity sulfonic acid intermediate for additive manufacturers producing their own sulfonate detergent packages.
What is PIBSA and how is it different from PIBSI?
PIBSA (Polyisobutylene Succinic Anhydride) is the intermediate; PIBSI (Polyisobutylene Succinimide) is the finished dispersant.

PIBSA is made by reacting polyisobutylene with maleic anhydride. It is then reacted with a polyamine to produce PIBSI — the ashless dispersant used in engine oils. PIBSA itself is sold to dispersant manufacturers as a building block, and is also used directly as an emulsifier, rust inhibitor and in fuel additive applications.

In short: PIBSA is the raw material, PIBSI is the dispersant product made from it. Sinolook supplies both — PIBSA here as an intermediate, and finished PIBSI in the ashless dispersants range.
What is a thiadiazole metal deactivator?
A thiadiazole metal deactivator (typically a 2,5-dimercapto-1,3,4-thiadiazole, or DMTD, derivative) is a multifunctional additive that protects non-ferrous metals — especially copper and its alloys — from corrosion. It works by forming a protective chemisorbed film on copper surfaces, which:
1. Prevents the metal from catalyzing oil oxidation;
2. Stops copper being attacked by active sulphur from EP additives.

Thiadiazoles are used in industrial gear oils, hydraulic fluids, greases, metal-working fluids and engine oils. They are particularly important in formulations containing sulphur-based EP additives, where uncontrolled copper corrosion would otherwise be a problem. See our anti-wear & EP additives.
Who buys specialty additives and intermediates?
Specialty additives and intermediates are mainly purchased by additive manufacturers and lubricant blenders rather than end users:
• LABSA, synthetic DABSA and PIBSA are bought by companies that manufacture their own detergent and dispersant packages and need consistent, high-purity building blocks.
• Thiadiazole metal deactivators are bought by blenders formulating industrial gear oils, greases and metal-working fluids who need copper protection.

Sinolook supplies all four at bulk scale with full documentation, serving additive producers and blenders across 60+ countries.
What is the difference between LABSA and synthetic dialkylbenzene sulfonic acid?
Both are sulfonic acid intermediates for sulfonate detergents, but differ in structure and performance:
• LABSA (Linear Alkylbenzene Sulfonic Acid) has a single linear alkyl chain — cost-effective, widely available, the standard feedstock for general sulfonate detergents.
• Synthetic Dialkylbenzene Sulfonic Acid has two alkyl chains and is synthetically produced — giving higher purity, better oil solubility and more consistent performance. Preferred for premium sulfonate detergents and high-performance rust preventives.

Synthetic dialkylbenzene sulfonic acid is the higher-tier choice where consistency and oil solubility matter most.
Can Sinolook supply both intermediates and the finished additives?
Yes — this is a key advantage. Sinolook supplies:
• LABSA / DABSA (intermediates) and finished sulfonate detergents
• PIBSA (intermediate) and finished PIBSI dispersants

This means whether you are an additive manufacturer wanting building blocks, or a blender wanting ready-to-use finished additives, you can source from one supplier. It also gives supply-chain flexibility — switch between intermediate and finished sourcing as your operation evolves.
Can Sinolook provide TDS, MSDS, COA and bulk supply?
Yes. Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS / SDS in GHS format), and batch-specific Certificate of Analysis (COA) are provided for every specialty additive and intermediate in English or Chinese. As intermediates are often used at large scale, we supply in drums, IBC totes, flexitanks and ISO tanks with consistent purity batch to batch. Email sales@sinolook.com or message us on WhatsApp.

Ready to source specialty additives from Sinolook?

Tell us the product (LABSA, DABSA, PIBSA or thiadiazole), whether you need intermediate or finished additive, and volume — we'll respond within 24 hours with TDS and a delivered quotation.

Request a Quote
📧 sales@sinolook.com 💬 WhatsApp +86 181 5036 2095 📱 +86 134 0071 5622
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