Replace seat on metal dining chairs?

We have some metal patio chairs.. the seat used to be a woven faux rattan made from plastic... when it gave up the ghost.. I went to Lowe's and bought a 50 foot bundle of rope, one for each chair. I tied off one end with a long-ish tail and began wrapping the rope around the seat from back to front, pulling as tight as possible. Every time I returned to the back, I passed the rope over the tail to hide and secure it.... I also made a sort of "half hitch" knot to keep the rope from slipping loose when you sit or put weight on them. Packing the strands as close together as possible. On the last pass to the front I wrapped the post where the arm attaches to the front leg and started weaving Remember that you have TWO layers of rope to weave thru...the strands ACROSS from side to side doing the "half hitch" every other row.. 1st on the left and then on the right (alternating rows and sides)... as I started running out of rope, toward the end, I had to take some of the weaving out and spread it out more until I reached the last and still had enough length left to make a secure knot. I cut the end to about 3-4 inches and used a screw driver to stuff it inside the woven stuff. It turned out great, is fairly comfortable to sit on, and has extended the life of my chairs 2 years and they are still going despite sitting out in the sun and rain... I will repeat the process as needed in the future...hope this will help you

I redid the seats on old metal patio chairs using belts woven on two of them and ripped up shower curtain strips on the other two, here is a pic:

I have metal table & chairs (dining) wood seats bottomsconnect to metal chair frames. NO mold, but I have removed all old upholstery material got new foam cut to size, wrapped/covered foam padding with very thin acrylic fleece (staple gun in place, tight/smooth), NOW making custom REMOVABLE/LAUNDERABLE seat covers to just put over the seat bottoms (like a toilet seat lid cover) ... the project is time consuming, but well worth the effort. Now I can change the seat covers to go with seasonal decor/color schemes, matching table cloths, curtain/drapery panels etc., and if there's a spill in the chair or when they get dirty-- in the washer it goes!