Delrin (Acetal Homopolymer), Delrin Sheet, Delrin Rods. DELRINÂ® is a crystalline plastic which offers an excellent balance of properties that bridge the gap between metals and plastics.DELRINÂ® possesses high tensile strength, creep resistance and toughness.It also exhibits low moisture absorption. It is chemically resistant to hydrocarbons, solvents and neutral chemicals.elrin (Acetal Homopolymer), Delrin Sheet, Delrin Rods. DELRINÂ® is a crystalline plastic which offers an excellent balance of properties that bridge the gap between metals and plastics.
Steel and aluminum are the most popular metal roof materials. Metal roofing prices vary depending on the material. Costs usually range somewhere between $350 to $1,100 per square. A square equals 100 square feet and is the standard sizing for most roofing materials.
Another popular type of metal roof is the 24 gauge standing seam concealed fastener panel. The installed cost and materials for this type of roof typically are between $4.00 to $6.00 per square foot.Both of these roofs are available in many colors and long term warranties.hat is the average cost per square foot to install roof? It depends on the type of roof. A single story low pitch asphalt shingle roof will cost around $40 - $80 per square (100 sq. ft.) to tear off and $75 - $100 per square to inst â¦ all new shingles.