What is the difference between water-repellent (wr), waterproof (wp) and waterproof-breathable (wpb)?

Is usually found on general outerwear or recreational apparel. It will have either a lightweight coating of some type or maybe made of waterproof materials, but the seams are not taped or somehow sealed and therefore cannot be called waterproof. In time (not absolute, but in the neighborhood of 2 hrs.

Max), the water will either come through the coating or find it’s way through the seams. The coating is simply designed to give you some time to find shelter. Not sealing the seams is usually (not always) a cost cutting effort.

€¢ WP…is generally when the fabric used has a fairly heavy coating of some type (ie. , PVC, Polyurethane) applied throughout. The seams are sealed, either by welding, (electronically), sewn, or dabbed by a liquid sealer of some type.

Frequently two process’s are combined (sewn & welded) for best results. Waterproof (primary mission), also means it’s not going to breath…and if you over work or over dress, you can generate a lot of heat, which if it doesn’t escape… ... more.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.