Thermwell created the do-it-yourself weather sealing industry when it introduced Frost King Felt Weather-Strip, “The Original Weather-Strip,” more than 50 years ago.
Today Frost King has a comprehensive line of soft foam tapes and aluminum weatherizing products to help you save money, save energy and stay comfortable.
In addition to self-stick tapes, Frost King offers many nail-on weather-strips, including felt (the most economical); and tubular vinyl gasket.