I have purchased a new acrylic sliding hatch for our Oday 39. The original is 35 years old, and has slid on teak runners about 1/2" wide on each side. Over 35 years, dirt and dust on that interface has caused the acrylic to wear slightly and become less "slippery" where it slides on the runners so it no longer operates easily. While I have it apart I will replace the teak runners, and I'm wondering if something like UHMW or a similar product might be better? I don't want to re-design the entire thing, and I realize that just using teak again will probably give decent service for the years I have left with the boat, but I'm thinking the plastic type product might be less susceptible to embedded dust and dirt that cause the hatch to wear.