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UNION StruCell® Marine Structural Foam Core - Waterproof PVC Foam Board for Boat Building

UNION’s StruCell® PVC foam cores are engineered for marine-grade structural applications in shipbuilding, yacht and houseboat construction. As a leading rigid PVC foam board supplier, we provide high-strength, waterproof, and lightweight core materials for decks, hulls, bulkheads and interior panels. Customizable with grooving and drilling for seamless integration.

Composite System Solutions

 Alternative PET foam & PP honeycomb
 Cost-optimized production processes
 5-30mm thickness customization

Global Marine Implementation

  Vessel types: Catamarans | Offshore support boats | Fishing vessels
Structural applications: Hull reinforcements | Deck systems | Bulkheads
Surface treatments: Scrim board | Hyperbolic plate
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UNION PVC Foam Core Board in Ship Hull Construction | Marine Composite Solutions.jpg
Surface Treatment

PVC FOAM

PET FOAM

PP Honeycomb

Surface Treatment

PVC FOAM

PET FOAM

PP Honeycomb


  • Why Choose StruCell® PVC Foam Boards?

     Structural Integrity: High strength-to-weight ratio for marine environments
     Fire-Retardant Options: Meets ship cabin safety standards
     Waterproof & Corrosion-Resistant: Ideal for boat building and yacht interiors
     Easy Fabrication: Compatible with CNC machining, grooving and drilling

  • Applications in Marine Industry

     Decking & Hulls: Lightweight yet durable alternative to traditional materials
     Bulkheads & Interior Panels: Noise reduction and thermal insulation
     Ceiling Boards for Ship Cabins: Smooth surface finish for aesthetic appeal
     Houseboats & Yachts: UV-resistant and low-maintenance

  • Customization Options

    Surface Treatments: Precision grooving and drilling for assembly efficiency
     Sizes & Thicknesses: Tailored for boat building specifications
     Color Variants: Match marine interior design requirements

Find Your Optimal Structural PVC Foam Match for Marine Component

Boat Building Application Hotspots with StruCell® PVC Foam Core​​​​​​​
LEARN MORE
strucell pvc foam boatbuilding application map.png
1
Decks/Liners

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P60 (60kg/m³)

2
Hardtops/Ceiling

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P45 (45kg/m³)

3
Hatches/Lids

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P80 (80kg/m³)

4
Transom

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P250 (250kg/m³)

5
Small Parts

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P130 (130kg/m³)

6
Stringers

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P200 (200kg/m³)

7
Bulkheads

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P100 (100kg/m³)

8
Hull (Bottom/Sides)

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P130 (130kg/m³)

1
Decks/Liners

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P60 (60kg/m³)

2
Hardtops/Ceiling

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P45 (45kg/m³)

3
Hatches/Lids

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P80 (80kg/m³)

4
Transom

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P250 (250kg/m³)

5
Small Parts

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P130 (130kg/m³)

6
Stringers

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P200 (200kg/m³)

7
Bulkheads

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P100 (100kg/m³)

8
Hull (Bottom/Sides)

Material: Closed-Cell Cross-Linked PVC

Recommended Grade: StruCell® P130 (130kg/m³)

  • Decks/Liners
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P60 (60kg/m³)

     

    Key Benefits:
    ✓ Optimal strength-to-weight ratio
    ✓ Weight reduction & enhanced rigidity
    ✓ Superior fatigue & impact resistance

     

    Why UNION StruCell®

    Cost-Effective Performance
    20-30% cost savings vs traditional materials
    Lightweight design improves fuel efficiency by 10-15%

  • Hardtops/Ceiling
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P45 (45kg/m³)

     

    Key Benefits:
    ✓ Lightweight structural solution
    ✓ Excellent surface finish
    ✓ Cost-effective performance

     

    Why UNION StruCell®

    Superior Strength-to-Weight Ratio
    High compressive strength (up to 12.5MPa)
    Low density (45-250kg/m³) maintains structural rigidity

  • Hatches/Lids
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P80 (80kg/m³)

     

    Key Benefits:
    ✓ High compression strength
    ✓ Superior screw retention
    ✓ Impact-resistant

     

    Why UNION StruCell®

    High-Performance Composite Core
    Excellent thermal & sound insulation
    Outstanding fatigue & impact resistance

  • Transom
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P250 (250kg/m³)

     

    Key Benefits:
    ✓ Extreme static load capacity
    ✓ Premium surface finish
    ✓ Machining-friendly

     

    Why UNION StruCell®

    Custom Surface Solutions
    Grooved for enhanced resin bonding
    Perforated for weight optimization

  • Small Parts
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P130 (130kg/m³)

     

    Key Benefits:
    ✓ Precision manufacturing
    ✓ Consistent quality
    ✓ Excellent durability

     

    Why UNION StruCell®

    Certified Reliability
    DNV GL certified for marine applications
    UL94 V-0 fire rated for safety

  • Stringers
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P200 (200kg/m³)

     

    Key Benefits:
    ✓ Ultra-lightweight
    ✓ High load-bearing capacity
    ✓ Superior structural support

     

    Why UNION StruCell®

    Optimal Cost Efficiency
    Industry-leading cost-effectiveness – 20-30% cost savings compared to traditional materials (such as aluminum and plywood)
    Lightweight design – reduces ship/vehicle weight and improves fuel efficiency by 10-15%

  • Bulkheads
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P100 (100kg/m³)

     

    Key Benefits:
    ✓ Balanced performance
    ✓ Optimal weight savings
    ✓ Vibration damping

     

    Why UNION StruCell®

    Superior Strength-to-Weight Ratio
    High compressive strength – up to 12.5 MPa (P250 model), suitable for high-load structures such as ship hulls and decks
    Low density (45–250 kg/m³) – reduces weight while maintaining structural rigidity

  • Hull (Bottom/Sides)
    More+

    Material: Closed-Cell Cross-Linked PVC

     

    Recommended Grade: StruCell® P130 (130kg/m³)

     

    Key Benefits:
    ✓ Marine-grade durability
    ✓ Saltwater resistance
    ✓ Impact absorption

     

    Why UNION StruCell®

    High-Performance Composite Core
    Thermal & Acoustic Insulation – Closed-cell structure effectively blocks heat and noise, enhancing comfort
    Fatigue & Impact Resistance – Maintains shape over time, extending the lifespan of ships/vehicles

StruCell® PVC Foam Core Applications in Marine Boat Building

Density Grade Primary Applications Key Structural Components
P45 (45kg/m3) Lightweight structural cores Decks/Liners, Hatches/Lids, Ceiling/Hardtops, Small Parts, Stringers, Bulkheads
P60 (60kg/m3) Balanced performance Hull Bottoms, Hull Sides, Decks/Liners, Superstructures, Ceiling, Small Parts, Stringers, Bulkheads
P80 (80kg/m3) Enhanced strength applications Hull Sides, Decks/Liners, Hatches/Lids, Superstructures, Small Parts, Stringers, Bulkheads
P100 (100kg/m3) Heavy-duty marine solutions Hull Bottoms, Hull Sides, Decks/Liners, Ceiling/Hardtops, Small Parts, Stringers, Bulkheads
P130 (130kg/m3) High-performance cores Hull Bottoms, Hull Sides, Decks/Liners, Superstructures, Small Parts, Stringers, Bulkheads
P200 (200kg/m3) Extreme load applications Shells, Blade Tips, Shear Webs, Hull Sides, Decks, Hatches, Superstructures, Stringers, Bulkheads, Transoms, Subfloors, Hard Points
P250 (250kg/m3) Ultra-high density solutions Hull Sides, Transoms, Small Parts, Stringers, Bulkheads, Subfloors, Hard Points

Marine-Grade Rigid PVC Marine Structural Foam Core

   PVC Foam
Density: 60KG/M 3-130KG/M 3
Thickness:5mm-30mm
Surface treatment: Plain, perforated, slotted, hyperbolic plate, scrim board...
Advantages: high strength, light weight,
Thickness tolerance ±0.2mm
Density tolerance ±3kg/m 3
 
   PP Honeycomb
Structure: Non-woven+PP core+Non-woven
Film+Non-woven+PP core+Non-woven+Film
Thickness: 6mm-50mm
 
   PET Foam
Density: 60KG/M 3-200KG/M 3
Thickness: 5mm-30mm
Advantages: Eco-friendly, cost-efficient, high performance

 
  • A kayaker on the water using a kayak and paddle both built with lightweight structural PVC foam core. The hull and paddle showcase the material's strength and performance in composite sandwich construction.
    PVC Foam Core for Kayak Hull & Paddle
    Model:
    Brief:
    Custom PVC Foam Core Kayak Components: Hulls, Paddles & Transoms
    UNION Composites specializes in precision CNC machined structural PVC foam core components for kayak manufacturing, including hull, paddle, and transom. Our DNV GL-certified StruCell® PVC foam delivers superior strength-to-weight ratio, waterproof performance, and excellent fatigue resistance—ideal for marine recreational equipment.
  • StruCell® P45 structural PVC foam core board with DNV GL certification, ideal for shipbuilding and refrigerated trucks
    StruCell® P45 Structural PVC Foam Board
    Model: P-45
    Brief:
    StruCell® P45 is a structural PVC foam sheet manufactured through controlled expansion of cross-linked polyvinyl chloride (PVC). As a DNV GL-certified closed-cell polymer foam, it delivers exceptional thermal insulation and mechanical stability for: Marine: Hull cores for LNG carriers & yachts
    Transport: Refrigerated truck panels & camper van insulation
    Industrial: Low-temperature equipment enclosures
     
  • High-strength StruCell® P60 structural PVC foam core board for marine applications
    StruCell® P60 Structural PVC Foam Board
    Model: P-60
    Brief:
    High-Performance Core Material for Marine & Wind Energy Applications

    StruCell® P60 is a structural PVC foam sheet engineered for demanding applications in: Marine: Hulls, decks, and bulkheads for boats and yachts
    Wind Energy: Blade cores and nacelle components
    Transport: RV and camper van structural panels
  • DNV GL-certified StruCell® P80 structural PVC foam with grooved surface for marine hulls and camper van panels
    StruCell® P80 Structural PVC Foam Board
    Model: P-80
    Brief:
    Premium Closed-Cell PVC Foam for Demanding Applications Ultra-Durable Marine & Outdoor Core Material StruCell® P80 is a high-density structural PVC foam sheet engineered for superior performance in marine and outdoor environments. With 80kg/m³ density and advanced cross-linking technology, it delivers unmatched durability for: Marine Construction: Hulls, decks, and bulkheads
    Yacht & Boatbuilding: Lightweight yet rigid core material
    RV & Camper Manufacturing: Weather-resistant panels
  • Heavy-duty StruCell® P100 structural PVC foam sheet (100kg/m³) for marine bulkheads and shipbuilding
    StruCell® P100 Structural PVC Foam Board
    Model: P-100
    Brief:

    High-Density Marine-Grade Core Material
    Premium Closed-Cell PVC Foam for Demanding Marine Applications
    StruCell® P100 is a high-performance structural PVC foam sheet engineered for critical marine and industrial applications. With 100kg/m³ density and advanced cross-linking technology, it delivers exceptional strength for:
    Marine Construction: Hulls, decks, and bulkheads requiring maximum durability
    Yacht & Boatbuilding: Structural cores for high-performance vessels
    Industrial Composites: Heavy-duty sandwich panels
  • Structural grooved PVC foam board P130 (130kg/m³) for lightweight motorhome interiors
    StruCell® P130 Structural PVC Foam Board
    Model: P-130
    Brief:
    Structural Core for Marine & Automotive Applications
    Premium Finish Structural Foam Solution
    StruCell® P130 is a gloss structural PVC foam sheet featuring a unique hardened surface finish, engineered for applications requiring both strength and aesthetic appeal:
    Marine Interiors: Luxury yacht cabins, deckhead panels
    Automotive: Premium vehicle interior trim components
    RV/Campervan: High-end wall and ceiling systems
  • P200 PVC structural foam core in marine bulkhead construction
    StruCell® P200 Structural PVC Foam Board
    Model: P-200
    Brief:
    Rigid Structural Core for Marine & Automotive Manufacturing
    Premium Polymerized Vinyl Chloride Foam
    StruCell® P200 is a rigid structural PVC foam sheet engineered for demanding infusion and autoclave processes in: Marine Construction: High-load hull sections and structural decks
    Automotive: Lightweight yet rigid components for performance vehicles
    Aerospace: Composite tooling and structural parts
  • Heavy-duty StruCell® P250 PVC foam board (250kg/m³) for marine and aerospace applications
    StruCell® P250 Structural PVC Foam Board
    Model: P-250
    Brief:
    Marine Structural Core for Demanding Applications
    Premium Closed-Cell Rigid PVC Foam Solution
    StruCell® P250 represents the pinnacle of structural PVC foam technology, delivering unmatched performance for:
    Marine Construction: Hulls, decks, and bulkheads requiring maximum durability
    High-Performance Vehicles: Lightweight structural components
    Industrial Tooling: Precision molds and fixtures
  • P45 PVC Foam Board Closed-Cell Structure | 48kg/m³ Density Core Material
    UNION P45 PVC FOAM BOARD
    Model: P-45
    Brief:
    As a leading PVC foam core board manufacturer, UNION delivers P45 closed-cell polymer foam engineered for cryogenic applications. This cross-linked foam sheet excels in:

    ✅ Superior Thermal Retention: 0.035 W/m·K thermal conductivity for refrigerated systems
    ✅ Structural Durability: 48kg/m³ density with 0.6MPa compressive strength
    ✅ Certified Performance: DNV GL TAK00001DV certified for LNG containment systems

    Key Applications
    Cold Chain Logistics
    • Refrigerated truck wall panels  • -25°C continuous operation stability
    Energy Transportation
    • LNG carrier insulation layers  • 25+ year marine corrosion resistance
     
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.
  • Fiberglass scrim reinforced P60 PVC foam with textured surface
    UNION PVC FOAM - P60
    Model: P-60
    Brief:
    UNION PVC Foam-P60 is a durable closed-cell PVC foam core board manufactured by UNION COMPOSITES, a leading PVC Foam Core Board Sheet manufacturer and supplier in China. This high-performance material is specifically engineered for wind energy applications (blades & nacelles), boatbuilding, and RV manufacturing, offering exceptional strength-to-weight ratio and weather resistance.
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.
  • UNION P80 PVC Foam with grooves and perforations - Professional surface technology
    UNION P80 PVC FOAM BOARD
    Model: P-80
    Brief:
    UNION PVC Foam Board P80 is a premium closed-cell, cross-linked polymer foam core board, manufactured by China's leading PVC Foam Core Board Sheet manufacturer and supplier - UNION COMPOSITES. Specially engineered for marine applications and sports equipment, this high-performance material delivers exceptional strength-to-weight ratio and durability.
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.
  • UNION P100 PVC Foam Sheet with Grooves & Holes - Optimized for Resin Infusion
    UNION P100 PVC FOAM BOARD
    Model: P-100
    Brief:
    UNION PVC Foam-P100 is a superior closed-cell lightweight foam core material manufactured by UNION COMPOSITES, a leading PVC Foam Core Board Sheet manufacturer and supplier in China. Ideal for marine applications, this cross-linked PVC foam offers high strength-to-weight ratio, excellent mechanical properties, and compatibility with resins for composite sandwich structures.
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.
  • UNION P130 Grooved & Perforated PVC Foam Board | Marine Composite Core Material
    UNION P130 PVC FOAM BOARD
    Model: P-130
    Brief:
    Key Technical Features
    • Rigid expanded sheet with smooth gloss finish
    • Density range: 120-150kg/m³ (ISO 845)
    • 3MPa compressive strength (ISO 844)
    • UL94 V-0 flame retardant certified

    Industrial Applications
    • Marine composite structures (DNV GL certified)
    • Signage substrates & decorative panels
    • Automotive sealing gaskets and tapes
     
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.
  • P200 PVC Foam Board with Precision Perforated Surface | 5mm Hole Pattern
    UNION P200 PVC FOAM BOARD
    Model: P-200
    Brief:
    Engineered for precision composite manufacturing, the UNION P200 PVC Foam Board is a 200kg/m³ density closed-cell foam core specifically formulated for autoclave processing and vacuum infusion applications. Key features include:

    ✅ Aerospace-Grade Material: DNV GL-certified for marine structures & aircraft interiors
    ✅ Advanced Polymer Matrix: Chlorine-enhanced formulation for chemical resistance
    ✅ Process-Optimized: 0.2mm thickness tolerance for mold tooling precision
    ✅ Multi-Industry Application: Wind turbine blades, ship bulkheads, automotive tooling
     
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.
  • UNION P250 PVC Foam Core Board | 250kg/m³ High-Density Closed-Cell Foam
    UNION P250 PVC FOAM BOARD
    Model: P-250
    Brief:
    UNION P250 PVC (polyvinyl chloride) foam board is one of the most superior closed cell foam material.
     
    Technical Specifications
    • Density: 250kg/m³
    • Compressive Strength: 6.2MPa
    • Tensile Strength: 9.2MPa

    Certified Performance
    • DNV GL TAK00001DV Certification
    • UL94 V-0 Fire Resistance
    • RoHS Compliant Material

    Core Applications
    • Marine Composite Structures (Triple Boatbuilding Certification)
    • Aerospace Tooling Components
    • High-Performance Automotive Parts
     
    This PVC Foam uses StruCell® original core materials and is provided by UNION with a localized adaptation solution.

Ready to explore how UNION PVC Foam can elevate your Marine projects?

Contact UNION for marine-grade PVC foam core tailored to your shipbuilding project. Request a quote or technical specs for StruCell® Marine Structural Foam Core.
UNION is committed to providing customers with one-stop composite solutions.

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   WhatsApp/Wechat: +86-18261198591
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