Polyurethane laminate (PUL) is fabric with a polyurethane film bonded to it. PUL fabric is used in sandwich and snack bags, food wraps, wet bags, reusable nappies, nursing and menstrual pads, waterproof clothing, mattress covers etc. Our PUL lining is a lightweight, polyester knit fabric.
WHAT IS POLYURETHANE?
Polyurethane is a soft and flexible form of a plastic combined with rubber.
IS PUL FABRIC FOOD SAFE?
There are many versions of PUL fabric in circulation and not all of them are safe for food. While being manufactured, PUL fabric components are the same, but the difference can be the amount/thickness of polyurethane laminate applied to the fabric and the way it is set.
Rinse and Repeats' PUL fabric supplier uses a special process to create completely food-safe, heat-stable PUL lining just 1mm thick, keeping the lining soft, flexible, breathable, and less likely to crack. Our suppliers export to the United States, which has very stringent regulations on items for use by children, and is certified BPA- and phthalate-free.
IS PUL LINING WATERPROOF?
Whether the product is watertight or just water resistant depends on the application. For example in reusable nursing pads, PUL lining would act as a waterproofing system, due to the nature of its construction and use, while a snack bag has seams, making it just water-resistant. This is not ideal for a juicy cut orange, but perfect for drier foods like cheese and cut apple.
IS PUL FABRIC BIODEGRADABLE?
No, polyurethane laminate is just another piece of plastic that isn’t going to break down in a hurry, right next to plastic wrap and disposable nappies. Unlike plastic wrap and single-use nappies, however, PUL fabric is designed to last and maintain its integrity.
The PUL lining we use has survived 300 very hot washes (90C/195F) and will last 1000 standard cold/warm machine washes. If your PUL-lined item is standard machine-washed once/twice a week, it will retain its durability, which is why it is a far superior option environmentally compared to single-use plastics.
To preserve your PUL-lined products, cold/warm machine wash and line dry. PUL will melt immediately if it comes into contact with a hot surface (e.g. iron), and exposure to high temperatures (e.g. tumble dryer) can degrade the product over time and shorten its life. Check the label.