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Syntactic Foam / Chemical Foam Subsea Buoyancy Modules For Marine Mining

Categories Subsea Buoyancy Modules
Brand Name: DOOWIN MARINE
Model Number: Trenching machine floats
Certification: ABS,CCS,BV,LR
Place of Origin: China
MOQ: 1pc
Price: 100~ 3500 $USD
Payment Terms: T/T
Supply Ability: 10pcs/per week
Delivery Time: 2~3 weeks
Packaging Details: Pallet or Plywooden Box
Product Name: Subsea Buoyancy Modules
Material: Syntactic foam, Chemical foam
Service: Support OEM/OEM service
Density range: 0.08-0.7g/cm³ ,provides exceptional lifting capacity
Long Service Life‌: 20+ year lifespan with minimal annual buoyancy loss (<0.1%)
Water absorption rate: Not more than 1% (or 5%)
Submersible Depth: 50~ 11,000 meters underwater
Shape design: According to different customer needs
Skin: Elastomer PU skin
Color: Standard color Yellow,Orange, or customized
module shape: As Client Requested
Application: Buoyancy solutions for every application
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Syntactic Foam / Chemical Foam Subsea Buoyancy Modules For Marine Mining

Installation Subsea Buoyancy Modules Umbilical Buoyancy Solutions Surface And Subsurface Buoys
High-density, low water absorption floats designed for demanding subsea environments. Most products are custom manufactured to meet specific project requirements.
Subsea syntactic foam buoyancy module in marine environment
Subsea Buoyancy Syntactic Foam
Subsea solid buoyancy material (syntactic foam) is a lightweight composite formed by embedding hollow microspheres in polymer matrices.
  • Low density (0.35-0.7g/cm³)
  • High strength (1-100MPa)
  • Minimal water absorption (<2%)
  • Excellent corrosion resistance
Engineered for Extreme Deep-Sea Environments
Deep-sea syntactic foam applications diagram
Our high-performance syntactic foams are specifically designed for deep-sea applications, offering:
  • Lightweight construction
  • Exceptional strength-to-weight ratio
  • Superior corrosion resistance
  • Ultra-high pressure resistance (withstands depths exceeding 10,000 meters)
These subsea buoyancy composites are typically fabricated by lightweight fillers like hollow glass microspheres to reduce density, often combining reinforcing fibers (e.g., carbon fiber, glass fiber) with polymer matrices (e.g., polyurethane, epoxy resin).
Applications
Our buoyancy modules are widely used in:
  • Manned submersibles
  • ROV/AUV buoyancy systems
  • Subsea oil and gas pipelines
  • Deep-sea mining equipment
By reducing structural weight while enhancing durability, our syntactic foams extend equipment lifespans and improve energy efficiency in marine operations.
Subsea Buoyancy Foam Specifications
Density and strength can be customized to meet specific water depth requirements.
TypeModelDensity (g/cm³)Compression Strength (MPa)Water Absorption (24h)Submersible Depth (m)
Chemical FoamCSBM-080.08/≤5%Surface
Chemical FoamCSBM-0200.200.5≤5%50
Chemical FoamCSBM-0250.251≤5%100
Chemical FoamCSBM-0300.302≤5%200
Standard PerformanceSBM-360.36 ± 0.01≥ 16≤1%500
Standard PerformanceSBM-380.38 ± 0.01≥ 21≤1%800
Standard PerformanceSBM-430.43 ± 0.02≥ 24≤1%1,000
Standard PerformanceSBM-450.45 ± 0.02≥ 28≤1%1,500
Standard PerformanceSBM-510.51 ± 0.02≥ 45≤1%3,000
Standard PerformanceSBM-540.54 ± 0.02≥ 60≤1%4,000
Standard PerformanceSBM-580.58 ± 0.02≥ 75≤1%5,000
Standard PerformanceSBM-630.63 ± 0.02≥ 90≤1%6,000
Standard PerformanceSBM-700.70 ± 0.02≥ 145≤1%11,000
High PerformanceSBM-43H0.42 ± 0.02≥ 27≤1%1,800
High PerformanceSBM-45H0.45 ± 0.02≥ 35≤1%2,000
High PerformanceSBM-48H0.48 ± 0.02≥ 42≤1%3,000
Precision Manufacturing Process
Syntactic Foam CNC production process diagram
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