Epicurean All-in-One Cutting Boards (Set of 3)

What is it made of? Does it dull knives quickly? According to the manufacturer: "Richlite is the material from which Epicurean makes its products. Hundreds of food-safe-resin soaked sheets of paper are pressed together under extreme pressure and heat, fusing the individual sheets into a solid piece of material. The final product is exceptionally strong, yet maintains the warm, natural look and feel of wood. It is lightweight, nonporous, knife friendly, and dishwasher safe. It won’t crack, split, or stain—making it a perfect material for cutting boards and earning Epicurean products worldwide recognition. It also is environmentally friendly. The paper composite raw material comes from Forest Stewardship Council (FSC) certified sources and/or recycled paper. 99.99% of the volatile organic compounds released by the resin are destroyed during the saturation process and never reach the atmosphere. Richlite has earned Greenguard, Rainforest Alliance, and FSC certifications."  I saw several reviews and nobody complained about knives being dulled faster than with wood. I could not find out what plastic "resin" is used to make the material. I suspect it is polyester, but it might be phenolic or acrylic or something else. I don't think it is polyethylene (HDPE), which is the knife-friendliest cutting board material I know of and is what all my cutting boards are made of. HDPE, which is the most common plastic blended with wood fiber in composite decking, does have some disadvantages for cutting boards, such as easy scratching and bending under its own weight or if heated at all, but it's quite inexpensive and the white boards don't have a personality that makes you want to keep them forever, so when they are ruined you can just replace them with no emotional impact. Another good thing about HDPE is that standing water will never penetrate it so it will not warp from water absorption like the manufacturer admits Richlite can: "If the cutting surface is stored flat, moisture (usually residual water left from washing in the sink or dishwasher) becomes trapped underneath and as the moisture tries to escape, it causes the board to warp. Even the smallest amount of moisture can cause the board to warp. Normally this can be corrected by “counter warping”. You would wash your surface, leave a bit of moisture on the board and lay it on the opposite side for a day or so which will level out the warp." This is one of the reasons I suspect the resin used is polyester - polyester will slowly absorb water of left sitting in it. But the boards must have the feel of wood because I saw one reviewer who said she liked it because it was not made of plastic and she didn't like using plastic. Oops. TMI? Sorry.