VERMICULITE
GYPSUM
FIREPROOFING 		SCHUNDLER

UL DESIGNS AND
FIRE-RATINGS 		CONSTRUCTION GUIDE
The Schundler Company
10 Central Street
Nahant, MA 01908
732-287-2244 www.schundler.com


SCHUNDLER CLASSIC 5 MD TYPE
CEMENTITIOUS FIREPROOFING

  1. PRODUCT NAME: Classic 5 MD

  2. PRODUCT DESCRIPTION:
    Schundler Classic 5 MD is a cementitious, inorganic fireproofing product designed to be mixed with clean, potable water and then spray applied to interior structural steel columns and beams, joists, girders, walls, roofs, steel decking, floors, and concrete surfaces. It is a blend of gypsum and vermiculite and other time-tested ingredients, and has been tested and approved for fire resistance ratings up to 4 hours.

  3. PRODUCT FEATURES:
    • Listed and classified by Underwriters Laboratories, Inc. (see design listings)
    • Time-tested traditional (classic) formula of asbestos-free, non-combustible vermiculite and gypsum.
    • No mineral wool or mineral fibers, no alum or chloride required, no styrene or similar organic aggregates that will burn or give off gases during combustion.
    • Ready to use with no need for other additives, ingredients, or products.
    • User friendly-easy to use.
    • Can be sprayed to different thicknesses depending on desired rating and assembly being fireproofed.

  4. LIMITATIONS:
    • Classic 5 MD should not be used on exterior surfaces, or surfaces exposed to water.
    • Classic 5 MD should not be used in applications where it will be exposed to excessive physical abuse,
    • Classic 5 MD neither promotes nor prevents corrosion, and it should not be considered part of the corrosion protection system. For contour applications where steel is primed, bond strength must meet minimum U.L. criteria.
    • Classic 5 MD is not a refractory cement nor should it be used as refractory insulation or anywhere where temperatures exceed 200o F (93o C).

  5. INSTALLTION:
    • Surfaces that are sprayed with Classic 5 MD must be free of oil, grease, loose scale or other substances that may impair adhesion. Hangers, clips or other attachments must be in place before Classic 5 MD is sprayed.
    • Any material that is damaged by other trades should be repaired before the job is considered completed.

  6. PHYSICAL PROPERTIES


    Property/Test Result/Value
    Density 22-23 pcf (215-272 kg/m3)
    Color gray-tan
    Combustibility non-combustible
    ...Flame Spread 10
    ...Smoke Developed 0
    Shrinkage < 0.5%>
    Shelf Life 9 months if kept dry
    Corrosion non-corrosive
    Coverage BF (approximate)

  7. UL FIRE RESISTANCE CERTIFICATIONS AND CLASSIFICATIONS:

    Most Frequently Used UL Designs
    Columns Design No. Y726 & Y727
    Roof AssemblyProtected Roofs, Ceilings Design No. P743
    Floor Ceiling Assembly
    ... Protected Floor, Ceiling
    ...Unprotected Floor, Ceiling    		 Design Nos. D787 & D943
    ... Design No. D787
    ... Design No. D943


  8. CITY OF NEW YORK / DEPARTMENT OF BUILDINGS:

    MEA APROVAL NO. 411-03-M

    City of New York MEA Approval in .pdf format

  9. MANUFACTURER: Schundler Classic 5 MD is manufactured by:

    The Schundler Company 150 Whitman Avenue PO Box 513 Metuchen, NJ 08840

    www.schundler.com info@schundler.com

    732-287-2244 732-287-4185 (fax)

    The Schundler Company is one of the oldest perlite and vermiculite processing companies in America. Fritz Schundler began processing vermiculite in the late 1920's and he opened the Schundler perlite mine in New Mexico in the 1940's. His nephew, Otto Schundler, founded The Schundler Company in New Jersey in 1951, and the company currently is managed by three of his boys.

    The Schundler Company has been providing perlite and vermiculite aggregates to the plastering and fireproofing industries since it started, and has been manufacturing a variety of fireproofing products for over ten years.

    Please visit our web site at www.schundler.com to read more about the company and its products.

For more information, please call or contact either:

The Schundler Company
10 Central Street
Nahant, MA 01908
732-287-2244 or www.schundler.com
mailto:info@schundler.com

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