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MAGNUM PRODUCTS

GSC/Ryan/ASI & MAGNUM PRODUCTS – Working Together to Treat You Right

As fellow GMS companies, Gypsum Supply Company (GSC), Ryan Building Materials (Ryan), and ASI Building Products (ASI) are authorized dealers of Magnum joint treatment and bead products, through our construction yards across the Great Lakes region in Michigan and northwest Ohio.

The Magnum Difference

Since 1987, MAGNUM PRODUCTS has been manufacturing drywall joint compounds throughout the United States. Magnum offers drywall products tailored to every customer’s specific project, job conditions, and needs. All products are designed using premium materials and are rigorously controlled and checked for quality at each stage of production.

MAGNUM prides itself on meeting or exceeding these performance characteristics: workability, open time, consistent quality, viscosity control, shrinkage, adhesion, sandability, and air entrainment. When you use Magnum Products, you know exactly what you’ll get...quality.

Partner with GSC, Ryan, and ASI for All Your Joint Treatment and Finishing Needs

Gypsum Supply, Inc., Ryan Building Materials, and ASI Building Products carry a wide variety of quality joint treatment products, including:

  • Ready mix compounds
  • Setting compounds
  • Textures
  • Tapes
  • Veneer plaster boards
  • Veneer basecoat plasters
  • Veneer finish plasters
  • Conventional basecoat plasters
  • Finish plasters
  • Plaster additives
  • Cement board underlayment

Buy MAGNUM Joint Treatments from GSC, Ryan, or ASI

Gypsum Supply, Inc., Ryan Building Materials, and ASI Building Products carries a wide variety of quality joint treatment and drywall finishing products from Magnum, including:

  • G-Series lightning ready mixed joint compound
  • R-100 All-purpose joint compound
  • R-150 Econo-lite mid weight all purpose
  • R-200 Ready mix topping compound
  • R-777 Premier all-purpose joint compound

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