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ChemLINE 784 WS

ChemLINE® 784 WS (Wine & Spirits) is a BPA-free, low-VOC protective lining engineered for wine and spirits applications, providing broad chemical resistance, zero hydrocarbon contamination risk, and durable performance with flexible cure and cleaning options.

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02Why It Matters

Why ChemLINE 784 WS

ChemLINE 784 WS is a high-functionality, two-component thermoset polymer coating specifically formulated for wine, spirits, and alcohol cargo applications.

Unlike standard coatings that use hydrocarbon-based solvents, ChemLINE 784 WS is formulated with ethanol as the reduction solvent, assuring that no hydrocarbon contamination can occur in alcohol cargoes from the lining.  Leveraging the same technology as ChemLINE 784, the unique polymer crosslinks up to 784 times per molecule when polymerized, resulting in a virtually impermeable, highly chemical-resistant coating that protects cargo purity and asset integrity across demanding alcohol and food-grade applications.

 

Performance Advantages

  • No hydrocarbon contamination of alcohol cargoes
  • Outstanding chemical resistance to alcohols, acids, caustics, and solvents
  • High heat resistance — dry heat to 400°F (204°C)
  • High abrasion and impact resistance
  • Superior bonding — can be applied to pitted and/or corroded steel
  • Virtually non-permeable — steam cleanable and field repairable

03Applications & Use Cases

Where ChemLINE 784 WS performs.

Primary Industries

  • Food Processing
  • Wine and Spirits Production
  • Bio-Fuel and Alcohol Processing
  • Transportation

Asset Types

  • Storage Tanks
  • ISO tanks
  • Over-the-road tankers
  • Railcars
  • Marine cargo tanks

Recommended Environments

  • Alcohol-containing cargoes (wine, spirits, ethanol)
  • 193 Proof Alcohol and Ethanol service
  • Acid and caustic environments
  • High-temperature cargo service
  • BPA-free required applications

04Application Guidance

Operational requirements for a benchmark application.

Before anything else

Surface Preparation

Coating performance starts with the blast. Surface preparation is non-negotiable for MarineLINE® systems.

  • Surface must be abrasive blasted to SSPC-SP10 / NACE 2
  • Achieve 2–3 mil anchor profile
  • Remove all contaminants, rust, and prior coatings
  • Surface must be dry and free of chlorides

Mixing Instructions

  • Material components supplied in pre-measured units
  • Mix ratio: 1:1 by volume (A:B)
  • Use heated plural component spray equipment
  • Material temperature: 150–160°F (65–71°C)

Environmental Conditions

  • Substrate temperature: 50–120°F (10–49°C)
  • Relative humidity: <85%
  • Surface must be 5°F above dew point
  • No application during precipitation

Equipment Recommendations

  • Graco Reactor E-30 or equivalent
  • Heated hose length: 50–100 ft maximum
  • Spray tip size: 0.037–0.043 inch
  • Air pressure: 2000–3000 PSI

Cure Guidance

  • Initial cure: 4–6 hours @ 70°F
  • Return to service: 48 hours @ 70°F
  • Full chemical resistance: 7 days
  • Cooler temperatures extend cure time

Need application guidance?

Contact our technical team for expert support.

Contact Technical Support

05Documentation & Resources

Everything your spec team needs.

Technical Data SheetPDFDownload Product BrochurePDFDownload
Winery for Web

Clean Protection for Wine & Spirits Service

06Proof & Validation

Experience you can trust.

2,500+
Vessels Protected
50M+
Square Feet Installed
25+
Years in Service
95+
Cargo Types Approved
Case Study

Global Chemical Tanker Fleet Conversion

120 vessel fleet conversion from epoxy to MarineLINE 784. Zero cargo contamination incidents over 8 years. 42% reduction in tank cleaning time.

Case Study

High-Temperature Vegetable Oil Service

15-year continuous service in heated vegetable oil cargo tanks. No coating degradation or product contamination. Service temperature 180°F sustained.

Certifications

USCG 46 CFR 30.10-15 Approved IMO Type 2 Approved FDA CFR 21 Compliant IMO PSPC Compliant USDA Approved NSF/ANSI 61 Certified

Independent Testing

  • ASTM D4541 Adhesion Testing: >1000 PSI pull-off strength
  • ASTM D522 Mandrel Bend: Passes 1/8" mandrel with no cracking
  • ASTM D2794 Impact Resistance: 160 in-lbs direct/reverse
  • Independent chemical immersion testing: 95+ cargo types validated
24/7

Technical support available 24/7 for application guidance, specification review, and project planning. Field application assistance and inspector training available.

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08Related Products

Explore the MarineLINE® family.

MarineLINE®

MarineLINE® 780

General purpose cargo tank coating for standard service.

View Product

01Technical Specifications

Engineered to a tightly knit, impermeable structure.

TDS SDS Application Guide
Coating Type 100% Solids Polyurea
Recommended DFT 60–80 mils (1.5–2.0 mm)
Service Temperature -40°F to 250°F (-40°C to 121°C)
Mixing Ratio 1:1 by volume
Solids Content 100% by volume
Cure Time 48 hours @ 70°F (21°C)
Application Method Plural component spray
Surface Profile SSPC-SP10 2–3 mils
VOC 0 g/L
Recoat Window 24–72 hours
Pot Life N/A (spray applied)
Coverage Rate 16 sq ft/gal @ 60 mils

MarineLINE: The cargo tank lining technology that changed the industry

MarineLINE® is engineered for chemical and product tankers carrying a wide range of high-value and aggressive cargoes. 
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MarineLINE: The cargo tank lining technology that changed the industry

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For more than three decades, it has set the standard for cargo tank protection, delivering proven performance across complex chemical exposures and trading conditions.

Designed to resist chemical degradation with nearly zero absorption, MarineLINE® helps maintain tank integrity and preserve cargo flexibility. Its advanced polymer technology supports faster, more efficient cleaning and shorter turnaround times between cargoes, helping vessels stay productive across changing trade demands.

 

From specialty chemicals and methanol to refined products, MarineLINE® provides consistent, long-term protection backed by extensive chemical resistance data, technical documentation, and hands-on expert support.