The foam mattress pitches a balance of firm (for ... According to reviewers and PS editors alike, this model is one of the best cooling mattresses because it's made from a thermoregulation ...

Reusable plastic and melamine trays have been largely phased out of school cafeterias over the last decade, replaced with PS foam trays that end up in the trash — 225 million of them every year ...

The three main types of surfboard foam are Polyurethane (PU), Expanded Polystyrene (EPS) and Polystyrene (PS). No one foam is “better” than the other, rather they all have unique performance ...

The Foam Recycling Coalition (FRC), Falls Church, Virginia, has launched a grant program to help develop the infrastructure for collecting, processing and marketing of polystyrene (PS) foam products.