Mahwah, N.J.-based Thermwell Products, makers of Frost King, has acquired PortaSeal of Morristown N.J., a manufacturer of weathersealing products, according to David Gerstein, president of Thermwell.
PortaSeal is known for its prime-quality wood and self-adjusting vinyl door sets. These include Weth-R-Strip, the economy model for sealing doors and windows; Insulated Strip, the double insulated product ideal for new construction and remodeling projects; and Magnet Stop with the magnetic core gasket that assures a tight seal on metal-clad entry doors. The company also makes Gara-Seal and Gara Bottom, vinyl products for sealing all around and under garage doors.
The PortaSeal product line will be marketed in conjunction with Thermwell’s best-known brand, Frost King.
In addition to Frost King, Thermwell’s family of products includes Mortite rope caulk, W. B. Marvin adjustable metal window screens, Seal-Rite automotive weatherstrip, Regent tapes, Lever slitting machinery, Filmco polyethylene drop cloths and trash bags, and Kraver screening.
Thermwell has offices and factories in Mahwah, N.J., and Sparks, Nev., with production and distribution facilities throughout the country.