Stronger, lighter, greener future

3A Composites Core Materials is a global leader with the broadest portfolio of high-performing and sustainable core materials with main focus on PET foam and balsa wood. We are the pioneers in sandwich technology with more than 75 years of experience.

Since the very beginning our focus has been developing strong and solid, yet lightweight core materials, which allow manufacturing more durable, sustainable and energy-efficient end products for our customers. Our products have also the purpose: to create a stronger, lighter and greener future.

We have innovation deeply planted in our core

Each of our products is a result of profound expertise and advanced thinking of our engineers, working in partnership with our customers and leading experts and research institutes. We shape the industry trends and keep our offer at the cutting edge of technology.

We want to make the industry greener

Our commitment to sustainability is deeply ingrained in all aspects of our business, from developing sustainable products to protecting the natural environment and cultural heritage of the communities we work in.

What we are made of

AIREX and BALTEK are more than just high-quality products. They are made of the finest natural and sustainable materials, rooted in decades-long experience, advanced thinking and superior engineering.


Air packaged to perfection

AIREX reflects its foam properties: air bubbles ("AIR") help expand ("EX") volume without the penalty of added weight. Specifically, our AIREX foam products are composed of closed cells filled with 50-96% air. AIREX foams give your sandwich structures outstanding strength, excellent stiffness and minimal weight – with AIREX foams sandwich structures can be more than 50% lighter.


Natural balsa wood, a renewable core material

BALTEK is the only structural core material made of a natural, renewable resource – balsa wood. The balsa tree combines various special features: quick growth, low to medium density and unparalleled weight-specific mechanical properties. Our balsa wood core material comes from our own FSC-certified plantations in Ecuador (FSC-C019065) and Papua New Guinea (FSC-C125018).

Innovative product solutions

Our customers can rely on our know-how as early as from the evaluation phase. We develop effective configurations for lightweight composites and cost-effective raw materials specifications and provide integrated support from the very beginning to the manufacturing process for customised lightweight sandwich components. Our services span product and process development as well as training. The motto is flexibility paired with reliable use of our own production technologies for a wide range of segment-specific specialty products.

We offer the broadest portfolio of products and materials allowing us to be present in different market segments. In cooperation with our partners we develop innovative solutions in many areas, e.g. renewable energy, marine, automotive, building and construction, aerospace, and industrial components. Our services bring added value to you and your customers – they are customised and sustainable, but cost-effective and environmentally-friendly at the same time.