Amanda Jacob 27 Oct 2014 More in Composite Applications Last week's top 3 Reinforced Plastics stories – Volvo XC90 composite leaf spring, improving adhesive bonding, aircraft repair News Top story last week: Benteler-SGL's glass fibre reinforced polyurethane leaf spring for the new Volvo XC90 SUV. Volvo XC90 features polyurethane composite leaf spring; Laser surface preparation of composite materials (Part 2); Patching up aircraft, the composites way (Part 1).