ProBalsa® is a premium organic structural core material made from end-grain balsa, featuring a natural micro-honeycomb cell structure that delivers exceptional shear strength, compressive performance and fatigue resistance. As one of the most efficient high-density core materials available, ProBalsa® provides outstanding stiffness and energy absorption at a very competitive weight, making it ideal for dynamic, high-load composite structures.
Engineered for versatility, ProBalsa® is compatible with a wide range of resin systems — including epoxy, vinyl ester and polyester — and performs reliably in both ambient and elevated-temperature prepreg curing environments. Its low Fire, Smoke & Toxicity (FST) profile and strong thermal/sound insulation properties further enhance its suitability across marine, wind energy, transport, industrial, architectural and civil engineering applications.
Easy to machine using standard woodworking tools, ProBalsa® can be drilled, milled, sawn and shaped with precision, ensuring fast processing and clean edges for accurate fitment in sandwich laminates.
KEY PERFORMANCE FEATURES
Every industry has distinct performance, compliance, and manufacturing requirements. ATL’s in-house chemists and engineers develop and refine epoxy systems, adhesives, and core materials to meet the specific demands of marine, defence, aerospace, automotive, industrial, civil, architectural, and sporting applications — ensuring every product delivers optimal strength, efficiency, and durability.
Yes. ATL offers custom formulation and process engineering support to align material performance with your production requirements — whether infusion, hand lay-up, lamination, bonding, or CNC-routed panel construction. Our technical team collaborates closely with customers to deliver precision-matched resin systems and structural solutions for unique applications.
Absolutely. ATL operates under an ISO 9001:2015-certified quality management system, with selected materials approved by DNV for use in structural and high-load applications. Every ATL system is manufactured to exacting standards of performance, consistency, and traceability to meet the demands of defence, industrial, and advanced engineering environments.
ATL’s epoxy systems, structural panels, and composite cores are engineered for high strength-to-weight performance, dimensional stability, and fatigue resistance. These attributes make ATL materials ideal for large composite assemblies, modular structures, and precision-engineered components where long-term strength, weight reduction, and reliability are essential.
Yes. ATL is committed to advancing sustainable composite technology, offering USDA-Certified Bio-Based epoxy systems and environmentally conscious materials that reduce waste, extend service life, and minimise environmental impact. Our ongoing R&D focuses on improving sustainability without compromising structural integrity or mechanical performance.
Choosing the ideal composite system depends on your structure’s design, load requirements, manufacturing process, and environmental exposure. ATL’s in-house engineers and chemists provide tailored advice to ensure the correct combination of resin, core, adhesive, and surface technology for your project.
To discuss your application or request technical guidance, contact ATL’s Technical Team — we’ll help you identify the most effective and efficient composite solution for your build.
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Australia’s Leading Supplier of Advanced Composite Materials & Engineering
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