Lightweight Solutions. Heavy-Duty Performance.

Located in Spartanburg South Carolina, Marex Composites is part of a global organization that distributes and finishes structural core materials. Marex Composites started in 2016 and has a young venture partnership that is able to customize standard core material finishes by scrim, score, infusion grooved, perforated, slit and plain.

Our Products

Maricell Mycell Rigid PVC Foam
PVC Foam Core

Excellent strength-to-weight properties and superior chemical stability.

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Stack of Mycell PVC Structural Foam Boards
PET Foam Core

Recyclable core materials with high compressive strength.

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Picture of PMI foam core board with infusion cuts in a grid scored pattern.
PMI Foam Core

Lightweight, high-strength material with exceptional mechanical properties and heat resistance.

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picture of balsa wood core rolled up after being perforated along with a picture of a rigid balsa core board
Balsa Core

Sourced from renewable plantations in Ecuador, Cobalsa delivers premium-grade balsa wood products trusted worldwide for over 50 years.

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Proud to Work With