Kacper Duda

Chem-Craft > Articles by: Kacper Duda

Fire-Sensitive Rail and Marine Parts: Core Selection Basics

How do engineers ensure the safety of fire-sensitive rail and marine parts while maintaining lightweight structural performance? Specifying the correct structural foam core in sandwich construction determines both fire resistance and long-term structural integrity. An engineered core prevents rapid flame…

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Foam Core Selection for EV Battery Enclosure Panels

How do composite engineers ensure thermal stability and structural integrity in EV battery enclosures? By selecting high-performance structural foam cores. Advanced materials like PMI foam provide the essential heat management, impact resistance, and lightweight structural performance required for modern composite…

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ROHACELL® HF for Radomes: Signal Clarity vs. Strength

How do composite engineers ensure clear signal transmission without compromising the structural integrity of radomes? By integrating PMI foam technology like ROHACELL® HF into sandwich construction, manufacturers achieve optimal electromagnetic transparency alongside excellent lightweight structural performance. This structural foam core…

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Drying ROHACELL® Before Bonding: Common Defects

Why is drying structural foam cores like ROHACELL® critical before composite bonding? Proper drying removes absorbed atmospheric moisture, preventing steam-induced pressure during high-temperature processing that causes delamination, blistering, and weak adhesion in lightweight composite structures. Why Drying ROHACELL® Before Bonding…

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How to Choose the Right ROHACELL® Grade for Your Process

How do composite engineers select the optimal structural foam core for their manufacturing process? Selecting the appropriate ROHACELL® polymethacrylimide (PMI) foam grade requires evaluating thermal stability, compressive creep resistance, and processing compatibility with methods such as RTM, infusion, and autoclave…

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RIMA or WF? Choosing Foam for Infusion and RTM Parts

Which structural foam core is best for resin infusion and RTM composite manufacturing? Selecting the correct material depends directly on your engineering requirements for manufacturing process compatibility and part geometry. ROHACELL® RIMA is engineered for optimal resin distribution in infusion…

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Processing Methods for ROHACELL® Foam in High-Precision Prototyping (CNC, Laser, Molding) – Tools and Best Practices

How can composite engineers process ROHACELL® foam for high-precision prototyping? CNC machining, laser processing, and advanced molding methods provide the exact tolerances and surface finishes required for demanding aerospace, automotive, and medical applications. This technical guide covers the engineering requirements,…

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Radiolucent Foam Cores for CT and X-Ray Tables

How do medical imaging tables minimize radiation interference while safely supporting patient weight? Advanced structural foam cores, such as ROHACELL® PMI foam, provide a highly radiolucent, structurally rigid foundation that allows X-rays and CT beams to pass through with minimal…

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Dielectric Properties in Foam Cores for Antenna Design

How do structural foam cores influence antenna design? The dielectric properties of foam cores determine electromagnetic transparency, directly impacting antenna efficiency, bandwidth, and size. For composite engineers, selecting a core with the correct dielectric constant and loss tangent is a…

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Resin Uptake in PMI Foam: Why Part Weight Changes

Why do composite parts manufactured with PMI foam cores experience unexpected weight variations? The primary cause is resin uptake, where liquid matrix materials penetrate the structural foam core’s surface cells during processing, adding significant mass without contributing to lightweight structural…

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