MONOKOTE FIREPROOFING
MONOKOTE® Z-146PC
Lightweight, high density, ceramic type inorganic fireproofing, formulated with corrosion inhibitor
Product Description
Monokote® Z-146PC petrochemical grade cementitious fireproofing has been developed by GCP Applied Technologies to meet the harsh conditions found in petrochemical processing and refinery facilities.
Monokote Z-146PC is a Portland cement-based fireproofing requiring only the addition of water at the job site to form a consistent pumpable and trowelable slurry.
Monokote Z-146PC is supported by GCP fireproofing representatives worldwide trained in the specification and application of fireproofing products in commercial, industrial and petrochemical environments. GCP has over 40 years experience in the fireproofing business.
Features and Benefits
Conditions not Recommended
Coatings Requirement
Inspection
Prior to the application of Monokote Z-146PC, an inspection shall be made to determine that all substrates are acceptable to receive fireproofing. Substrates shall be free from any substance that would impair the adhesion of the fireproofing and shall be compatible with Portland cement materials.
It is recommended that all substrates protected by fireproofing be routinely inspected as part of an ongoing facilities maintenance program. GCP should be consulted for proper patching procedures.
Mixing
Monokote Z-146PC shall be mixed by machine in a conventional paddle type mixer. The mixer shall be kept clean and free of all previously mixed material. The mixer speed shall be adjusted to the lowest speed which gives adequate blending of the material and a mixer density of 835 - 945 kg/m³.
Using a suitable metering device and mixer, approximately 15 liters of potable water per bag shall be first added to the mixer as the blades turn. Add Monokote Z-146PC and mix about 90–120 seconds until the mix is lump-free with a creamy texture. Over-mixing will reduce pumping rate and density.
Performance Characteristics
Monokote® Z-146PC petrochemical grade cementitious fireproofing has been developed by GCP Applied Technologies to meet the harsh conditions found in petrochemical processing and refinery facilities.
Monokote Z-146PC is a Portland cement-based fireproofing requiring only the addition of water at the job site to form a consistent pumpable and trowelable slurry.
Monokote Z-146PC is supported by GCP fireproofing representatives worldwide trained in the specification and application of fireproofing products in commercial, industrial and petrochemical environments. GCP has over 40 years experience in the fireproofing business.
Features and Benefits
- Fire tested - Monokote Z-146PC has been tested in accordance with
- Hydrocarbon pool fire up to 4 hours as per:
- UL 1709 / ASTM E-1529
- Lloyd’s Register of shipping for offshore structures
- BS 476 Part 20 Appendix D
- Norwegian Petroleum Directorate
- EN 1993-1-2: 2005
- UL investigated for exterior exposure under freeze/thaw cycles, salt spray, accelerated aging, high humidity and polluted industrial atmosphere
- HSE OTI 95634 jet fire up to 2 hours
- Baker blast explosion test
- NFPA 58 fire and hose stream for LPG tanks
- LNG immersion test for cryogenic spillage
- Durability - Monokote Z-146PC sets and dries to a hard, damage resistant coating offering resistance against physical contact and impact occurring during routine operations and maintenance at the facility. Z-146PC has been tested for bond, compressive strength, hard-ness and other properties in accordance with API Guidelines (Publication 2218) and ASTM in-place performance standards.
- Application versatility - Monokote Z-146PC can be mixed in standard plaster mixers. After mixing, Z-146PC may be spray-applied with commonly available pumping and spraying equipment for high-speed efficient application. For hand application it is recommended that Z-146PC be sprayed into a suitable container and troweled into place as required.
- Economical - Monokote Z-146PC offers the most economical fire resistance by reducing labor time both in interior as well as in exterior corrosive environments, such as those defined by ISO 12944-2.
- Other key advantages - Application by qualified companies, extensive track records, superior bond and mechanical properties, very low thermal conductivity, up to 1 in. (25 mm) per coat, high yield rates, worldwide technical assistance and product availability, non flammable and non combustible, asbestos free, chloride and sulfide free, no contribution to smoke generation during a fire.
Conditions not Recommended
- Operating temperatures in excess of 93 °C
- Use over aluminum or other non-ferrous substrates
- Use as a refractory material
Coatings Requirement
- Primers - Monokote Z-146PC has been formulated with a patented corrosion inhibitor (DCI) that has shown to retard the rate of corrosion due to chlorides and other aggressive environmental conditions. However Monokote Z-146PC shall not be used as an anticorrosive material, thus we always recommend the use of an alkaline resistant, immersion grade, epoxy anticorrosive paint (or system) compatible with Portland cement.
- Topcoats - Generally not required, however in corrosive environments a compatible topcoat should be used to extend the life expectancy of the entire system. Contact GCP Technical Service for further recommendations.
Inspection
Prior to the application of Monokote Z-146PC, an inspection shall be made to determine that all substrates are acceptable to receive fireproofing. Substrates shall be free from any substance that would impair the adhesion of the fireproofing and shall be compatible with Portland cement materials.
It is recommended that all substrates protected by fireproofing be routinely inspected as part of an ongoing facilities maintenance program. GCP should be consulted for proper patching procedures.
Mixing
Monokote Z-146PC shall be mixed by machine in a conventional paddle type mixer. The mixer shall be kept clean and free of all previously mixed material. The mixer speed shall be adjusted to the lowest speed which gives adequate blending of the material and a mixer density of 835 - 945 kg/m³.
Using a suitable metering device and mixer, approximately 15 liters of potable water per bag shall be first added to the mixer as the blades turn. Add Monokote Z-146PC and mix about 90–120 seconds until the mix is lump-free with a creamy texture. Over-mixing will reduce pumping rate and density.
Performance Characteristics
PHYSICAL PROPERTIES | RECOMMENDED SPECIFICATION | LABORATORY TESTED* VALUES | TEST METHOD/NOTES** |
---|---|---|---|
PHYSICAL PROPERTIESDry density, minimum average | RECOMMENDED SPECIFICATION640 kg/m³ | LABORATORY TESTED* VALUESks. alaviite**td> | TEST METHOD/NOTES**ASTM E605 |
PHYSICAL PROPERTIESBond strength | RECOMMENDED SPECIFICATIONMin 4,9 kg/cm² (0,49MPa) | LABORATORY TESTED* VALUES8,8 kg/cm² (0,88 MPa) | TEST METHOD/NOTES**ASTM E736 |
PHYSICAL PROPERTIESCompression, 10% deformation | RECOMMENDED SPECIFICATION35,2 kg/cm² (3,45 MPa) | LABORATORY TESTED* VALUES60.8 psi (413.6 KPa) | TEST METHOD/NOTES**ASTM E761 |
PHYSICAL PROPERTIESShore D hardness | RECOMMENDED SPECIFICATION40 | LABORATORY TESTED* VALUES49 | TEST METHOD/NOTES**ASTM D2240 |
PHYSICAL PROPERTIESYield (coverage) | RECOMMENDED SPECIFICATION- | LABORATORY TESTED* VALUES6,6 kg/m² at 10 mm | TEST METHOD/NOTES**Theoretical |
PHYSICAL PROPERTIESColour | RECOMMENDED SPECIFICATION- | LABORATORY TESTED* VALUES- | TEST METHOD/NOTES**Grey |
PHYSICAL PROPERTIESVOC (off gassing) at 50 °C organic compounds C6-C28 |
RECOMMENDED SPECIFICATIONLess than 1 PPMW (part per million by weight) |
LABORATORY TESTED* VALUESLess than 1 PPMW (below detectable limits) |
TEST METHOD/NOTES**Dynamic headspace (Thermal Desorption Gas Chromatography – mass spectrometry) |
PHYSICAL PROPERTIESLeachable ammonia | RECOMMENDED SPECIFICATIONLess than 50 PPB– 50 ng/mg | LABORATORY TESTED* VALUESLess than 50 PPB (below detectable limits) |
TEST METHOD/NOTES**Leachable ion by ion chromatography |
PHYSICAL PROPERTIESThermal conducitivity | RECOMMENDED SPECIFICATION- | LABORATORY TESTED* VALUES0,14 W/mK at 20 °C | TEST METHOD/NOTES**UNI EN 12667:2002 |
PHYSICAL PROPERTIESThermal conducitivity | RECOMMENDED SPECIFICATION- | LABORATORY TESTED* VALUES0,17 W/mK at 565 °C | TEST METHOD/NOTES**UL 1709 |
PHYSICAL PROPERTIESThermal conducitivity | RECOMMENDED SPECIFICATION- | LABORATORY TESTED* VALUES0,28 W/mK at 889 °C | TEST METHOD/NOTES**UL 1709 |
* 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. Test reports here were conducted at 635 kg/m³.
Application
Temperature
An air and substrate temperature of 5 °C minimum shall be maintained for 24 hours prior to application, during application and for a minimum of 72 hours after application. To obtain optimal strength, Monokote Z-146PC should be moist cured for a minimum of 72 hours and then be allowed to dry naturally.
Delivery & Storage
Safety
** 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. Test reports here were conducted at 635 kg/m³.
Application
- Monokote Z-146PC material shall not be used if it contains partially set, frozen or caked material.
- Monokote Z-146PC shall have a minimum average dry in-place density of 640 kg/m³.
- Monokote Z-146PC can be sprayed directly to lathed steel substrates in one or more passes. A spray gun with a properly sized orifice with spray shield, and air pressure at the nozzle of approximately 20 psi (1,4 bar) will provide the correct adhesion, density and appearance.
Temperature
An air and substrate temperature of 5 °C minimum shall be maintained for 24 hours prior to application, during application and for a minimum of 72 hours after application. To obtain optimal strength, Monokote Z-146PC should be moist cured for a minimum of 72 hours and then be allowed to dry naturally.
Delivery & Storage
- All material to be used for fireproofing shall be delivered in original unopened packages bearing the name of the manufacturer, the brand and proper UL labels for fire resistance classifications. The material shall be kept dry until ready for use. Packages of material shall be kept off the ground, under cover and away from sweating walls and damp surfaces.
- All material that has been exposed to water before use shall be discarded. Stock of material is to be rotated and used before its expiration date.
Safety
- Monokote Z-146PC is slippery when wet. Proper signs should be used when applying wet fireproofing material. SDS (Safety Data Sheet) are available on our web site www.gcpat.com or call toll free at 866-333-3SBM.
- Safety Data Sheet (SDS) for Monokote Z-146PC is available on our web site.