MONOKOTE Z-156 Ultra High Density Cementitious Fireproofing

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MONOKOTE® Z-156 ultra high density cementitious fireproofing has been developed by GCP Applied Technologies to meet specialty, commercial and industrial fireproofing requirements.

MONOKOTE® Z-156 is a Portland cement-based, factory-mixed material requiring only the addition of water on the job site for application. It is spray applied directly to structural steel (beams and columns), providing up to 4 hours of fire resistance. Its physical characteristics are excellent for areas exposed to environmental or climatic conditions. 

MONOKOTE® Z-156 may be used in areas where superior durability is required such as parking garages. This product is ideal for use in clean room environments where issues such as particle emissions and off gassing are critical to the interior environment within the building.

Features & Benefits

MONOKOTE® Z-156 offers the following advantages to architects, engineers, and applicators:

  • Factory pre-mixed - Ready to use. No job site proportioning required. Simply add water in a standard paddle-type plaster mixer and apply with conventional plastering equipment.
  • Non-toxic - The factory-mixed blend of common Portland cement and other inert materials requires only the addition of water for mixing and application.
  • Attractive finishes - MONOKOTE® Z-156 may be sprayed or hand troweled after spraying to achieve a lightly textured appearance.
  • Equipment versatility - MONOKOTE® Z-156 can be mixed in standard plaster mixers. After mixing, MONOKOTE® Z-156 may be spray-applied with commonly available pumping and spraying equipment.
  • Moisture resistant - The Portland cement base affords excellent fire protection characteristics in areas subjected to high humidity.
  • Durable - Hardness and maximum durability help resist accidental physical damage even in the toughest exposures.
  • Weatherable - Able to withstand freeze/thaw, wind, rain and other climatic conditions.

Uses

MONOKOTE® Z-156 may be used in parking garages, exterior areas, mechanical rooms and other areas where a superior durable product is required.

Performance Characteristics

PHYSICAL PROPERTIES RECOMMENDED SPECIFICATION LABORATORY TESTED* VALUES TEST METHOD **
Dry density, minimum average Min. 50 pcf (800 kg/m3) See note below*** ASTM E605
Bond strength Min. 10,000 psf (478 kN/m2) 20,680 psf (990 kPa) ASTM E736
Compression, 10% deformation 850 psi (5.86 MPa) 874 psi (6.03 MPa) ASTM E761
Air erosion Max 0.000 g/ft2 (0.00 g/m2) 0.000 g/ft2 (0.00 g/m2) ASTM E859
High velocity air erosion No continued erosion after 4 hours No continued erosion after 4 hours ASTM E859
Hardness 40 91 ASTM D2240
Bond impact No cracking, spalling or delamination No cracking, spalling or delamination ASTM E760
Deflection No cracking, spalling or delamination No cracking, spalling or delamination ASTM E759
Resistance to mold growth No growth after 28 days No growth after 28 days ASTM G21
Surface burning characteristics Flame spread = 0 Smoke developed = 0 Flame spread = 0 Smoke developed = 0 ASTM E84
Combustibility Less than 5 MJ/m2 total,
20 kw/m2 peak heat release
Less than 5 MJ/m2 total,
20 kw/m2 peak heat release
ASTM E1354

* Independent laboratory tested value. Report available upon request.
** ASTM International test methods modified for Bond Strength and Compressive Strength, where required, for high density, high performance products.
*** All in-place performance tests should be conducted at or below the minimum recommended specification density.