Unsaturated Polyester Resin (UPR)

Unsaturated Polyester Resin is produced first by esterificating Diacid and Diol to polymer form, then using styrene monomer to dissolve polymer into syrup form resin creating unsaturated polyester resin, this is what we called UPR.

The advantages of UPR are easy blinding with filler and create excellent properties under room temperature with normal pressure. After applying pressure with heat, UPR can be formed into high hardness products with excellent mechanical properties. UPR has distinct properties in weather resistance, chemical resistance, water resistance and cold resistance.

UPR is widely used in soft mold casting, button, boards, artificial marble, furniture, corrugated roofing, storage tanks, pipe line, yachts, fishing rods and many other construction FRP materials.