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Contact UsUltra-Hydro Stop
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- benefits:
- Quick Return to Service[*]
- benefits:
- Low VOC[*]
- benefits:
- Ultimate Durability[*]
- resources:
- Ultra Hydro Stop Primer TDS[*]Citadel_Ultra_Hydro_Stop_Primer_CDL13_ARJ2098_0925 TDS.pdf
- resources:
- Ultra Hydro Stop Primer TDS Spanish[*]Citadel_Ultra-Hydro_Stop_Primer_CDL44_EJ268_0925_US_TDS ES.pdf
- resources:
- Ultra Hydro Stop Primer H2O TDS[*]Citadel_Ultra-Hydro_Stop_H2O_Primer_CDL18_ARJ2107_0925 TDS.pdf
- resources:
- Ultra Hydro Stop Primer H2O TDS Spanish[*]Citadel_Ultra-Hydro_Stop_H2O_Primer_CDL47_EJ271_0925_US_TDS ES.pdf
- resources:
- Ultra Hydro Stop Primer 5gal Kit Clear SDS[*]10301B ULTRA-HYDRO STOP 5 GAL KIT KIT_GHS English SDS.pdf
- resources:
- Ultra Hydro Stop Primer 5gal Kit Dunes Tan SDS[*]359081 ULTRA-HYDRO STOP DUNES TAN 5 GAL KIT KIT_GHS English SDS.pdf
- resources:
- Ultra Hydro Stop Primer 5gal Kit Light Gray SDS[*]359082 ULTRA-HYDRO STOP LIGHT GRAY 5 GAL KIT KIT_GHS English SDS.pdf
- resources:
- Ultra Hydro Stop Primer H2O Kit SDS[*]10302 ULTRA HYDRO STOP H2O PRIMER KIT 1A 2B KIT_GHS English SDS.pdf
Ultra-Hydro Stop
Log in for pricing
- benefits:
- Quick Return to Service[*]
- benefits:
- Low VOC[*]
- benefits:
- Ultimate Durability[*]
- resources:
- Ultra Hydro Stop Primer TDS[*]Citadel_Ultra_Hydro_Stop_Primer_CDL13_ARJ2098_0925 TDS.pdf
- resources:
- Ultra Hydro Stop Primer TDS Spanish[*]Citadel_Ultra-Hydro_Stop_Primer_CDL44_EJ268_0925_US_TDS ES.pdf
- resources:
- Ultra Hydro Stop Primer H2O TDS[*]Citadel_Ultra-Hydro_Stop_H2O_Primer_CDL18_ARJ2107_0925 TDS.pdf
- resources:
- Ultra Hydro Stop Primer H2O TDS Spanish[*]Citadel_Ultra-Hydro_Stop_H2O_Primer_CDL47_EJ271_0925_US_TDS ES.pdf
- resources:
- Ultra Hydro Stop Primer 5gal Kit Clear SDS[*]10301B ULTRA-HYDRO STOP 5 GAL KIT KIT_GHS English SDS.pdf
- resources:
- Ultra Hydro Stop Primer 5gal Kit Dunes Tan SDS[*]359081 ULTRA-HYDRO STOP DUNES TAN 5 GAL KIT KIT_GHS English SDS.pdf
- resources:
- Ultra Hydro Stop Primer 5gal Kit Light Gray SDS[*]359082 ULTRA-HYDRO STOP LIGHT GRAY 5 GAL KIT KIT_GHS English SDS.pdf
- resources:
- Ultra Hydro Stop Primer H2O Kit SDS[*]10302 ULTRA HYDRO STOP H2O PRIMER KIT 1A 2B KIT_GHS English SDS.pdf
Features & Benefits
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Quick Return to Service -
Low VOC -
Ultimate Durability
Description
Citadel Ultra-Hydro Stop Primer is a professional moisture-vapor-barrier (MVB) primer system designed for use on damp and green concrete prior to resinous floor coatings. The line includes two options to match project conditions: Ultra-Hydro Stop Primer, a two-component, 100% solids epoxy designed for high moisture mitigation, and Ultra-Hydro Stop H2O Primer, a three-component, water-based epoxy formulated for early-install schedules and low-odor applications.
Regular (100% solids): self-leveling, fast-setting epoxy primer that provides excellent adhesion and high moisture mitigation—when applied at the specified film build, it reduces vapor emission on moisture-laden slabs (meets ASTM F3010 requirements).
H2O (water-based): 50%-solids epoxy primer for moisture control with excellent adhesion to damp concrete; can be applied as early as 48 hours after placement to help reduce job-site downtime.
Recommended Uses
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MVB primer over damp or green concrete prior to epoxy, polyurethane, or polyurea systems (follow approved system guidance).
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Projects requiring strong adhesion and a reliable base for decorative broadcast or high-build systems.
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Accelerated timelines / early installs: use H2O variant for low-odor, water-based application and placement as early as ~48 hours after concrete pour (see TDS).
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High moisture mitigation: use Regular variant where increased moisture vapor transmission (MVT) reduction is required (meets ASTM F3010 when installed to spec).
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Commercial, industrial, and residential substrates where moisture-sensitive coverings or resinous topcoats are planned.
Project Essentials
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Please choose options for all selected products
Resources
- Ultra Hydro Stop Primer TDS
- Ultra Hydro Stop Primer TDS Spanish
- Ultra Hydro Stop Primer H2O TDS
- Ultra Hydro Stop Primer H2O TDS Spanish
- Ultra Hydro Stop Primer 5gal Kit Clear SDS
- Ultra Hydro Stop Primer 5gal Kit Dunes Tan SDS
- Ultra Hydro Stop Primer 5gal Kit Light Gray SDS
- Ultra Hydro Stop Primer H2O Kit SDS
