Hayakawa Rubber Co. Ltd. recently donated Superseal products, the company’s reactive-adhesion type sealant for concrete, to a Thai infrastructure project in which Chulalongkorn University’s Voluntary Engineering Student Camp (VESC) created estuary weirs. VESC, which was the first voluntary project carried out by Chulalongkorn University in 1969 and has been carried out once a year since then, was given its name…