How do I know if a package is made with “Good for WonderLumber” plastic (PE or PS) ?
To see if a package is made with PE plastic, turn it upside down. Look on the bottom of the bottle or the container for the Society of Plastics Industry (SPI) Resin Identification Code – either a number “2” or HDPE, or a number “4” or LLDPE inside chasing arrows. A package made with PS plastic will have a number “6” or PS inside the chasing arrows. Consumer packaging that is Good for WonderLumber includes any of the following that carry The Society of Plastics Industry (SPI) Resin Identification Code number “2”, number “4” or number “6” inside chasing arrows: milk jugs, juice bottles, vinegar and cider bottles, distilled and mineral water bottles and jugs, two-liter soft drink bottle base cups, margarine tubs, yogurt bottles, ice cream containers, whipped topping containers, ketchup, mustard and mayonnaise squeeze bottles, bouillon mix container lids, maple/chocolate syrup bottles, lemon/lime juice bottles, shampoo and conditioner bottles, hair coloring/treatment bottles, pump hair spr
