Profile: Heathrow Scientific® LLC manufactures primarily laboratory plastics such as microscope supplies, various sizes and configurations of tube racks, cryostorage, laboratory notebooks, microbiology, parafilm dispenser, tube racks, tubes, timers, weighing boats, pipetting aids & liquid measurement products. We also offer several different timers, bag sealers and mechanical counters. Our products deliver all the standard benefits laboratory technicians demand, but with unique features that make the products easier to use and more convenient. Our weighing boats are a good addition to our white flexible boats. Both flexible boats have smooth surfaces to provide accurate pour-outs with minimal sample loss.