Duck has more than just duct tape! Offering a line of duct and painting tapes, weather-stripping products, packaging tapes, home and office tapes, mailing supplies, even shelf liners and bath mats! The Duck Brand is helping you to save money by keeping the heat in during winter and out during summer. How? It's simple! Reducing home energy costs has never been easier thanks to Duck® brand Weatherstrip, a full line of home sealing solutions including window kits, insulating seals, plumbing insulation and more.