Coolant Additives - Engine Room Consumables and Spares
Marine coolant additives are concentrated chemical treatments used in engine cooling systems to control corrosion, scale, cavitation and liner pitting. They are used in freshwater cooling circuits according to the engine manufacturer’s coolant specification and water-quality requirements.
ProShipWorks provides end-to-end support to source and supply Coolant Additives for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
Last updated:
Product Information
| Product Name | Coolant Additives |
|---|---|
| Product Category | Engine Room Consumables and Spares |
| Product Reference | 1394 |
| Brands / Manufacturers | Fleetguard, Penray, Nalco Water |
| Unit of Measure | Liter or container |
Key Features
| Key Feature |
|---|
| 1. Corrosion and rust inhibition |
| 2. Protection against wet-cylinder liner cavitation |
| 3. Scale and deposit control |
| 4. Compatibility with heavy-duty diesel cooling systems |
| 5. Available as liquid, tablet or concentrate |
Applications of Coolant Additives
| Application |
|---|
| 1. Main and auxiliary marine diesel engine cooling systems |
| 2. Central freshwater cooling systems |
| 3. Emergency generator and machinery cooling circuits |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| DCA4 | Fleetguard |
| Pencool 3000 | Penray |
| NALCOOL 2000 | Nalco Water |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| DCA4 | Product type | Heavy-duty supplemental coolant additive | — |
| Pencool 3000 | Product type | Engine coolant corrosion and cavitation inhibitor | — |
| NALCOOL 2000 | Product type | Closed-loop cooling-water treatment | — |
| All models | Application requirement | Dosage and compatibility must follow engine maker instructions and coolant analysis | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Relevant evaluation methods may include ASTM D1384 for corrosion, ASTM D2809 for cavitation and ASTM D3306 or ASTM D6210 where the complete coolant formulation is covered. Additives must also meet the applicable engine manufacturer specification. |
|---|---|
| Class Approval | Standalone coolant additives are generally not separately type-approved by classification societies. Acceptance is normally based on engine manufacturer requirements, approved onboard procedures and the vessel’s class and flag-state compliance documentation. |
Installation, Maintenance & Safety Information
| Installation Notes | Verify the coolant type, additive compatibility, system capacity and required concentration before use. Add through the designated expansion tank or dosing point with the system at a safe temperature. Do not mix incompatible additive technologies. |
|---|---|
| Maintenance Tips | Maintain the concentration within the engine maker’s specified range using coolant test strips or laboratory analysis. Check inhibitor level, pH, reserve alkalinity, freeze protection and contamination at scheduled intervals. Replace or treat coolant according to the engine maintenance manual. |
| Safety Notes | Use the safety data sheet and wear gloves, eye protection and protective clothing. Avoid skin or eye contact and prevent discharge to sea or drains. Never open a pressurized or hot cooling system; collect and dispose of used coolant in accordance with vessel and port regulations. |
Request a Quote for Coolant Additives
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
Other Engine Room Consumables and Spares Products
Explore our range of marine and industrial Engine Room Consumables and Spares products available for sourcing and supply through ProShipWorks.
Why ProShipWorks?
Trusted & Professional Service
Experienced maritime professionals focused on quality, safety and dependable service execution.
24/7 Rapid Response
Fast response for planned and urgent vessel requirements, whenever support is needed.
Unbeatable Prices
Cost-effective marine services with competitive and transparent pricing for vessel requirements.
Port & Anchorage Coverage
Reliable marine service support across ports, anchorages and offshore locations.