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1800 Concrete Waterproofing Admix

Moxie Shield 1800 Concrete Waterproofing Admix

A versatile liquid admixture formulated to stop moisture vapor, water migration, and alkali efflorescence in concrete. Suitable for use above
and below grade, it is effective in all cementitious products and construction applications.
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Technical Consultation Recommended

Coverage rates for this product depend on mix design, substrate conditions, and application method. For accurate quantities, we recommend speaking with our sales team before ordering.
Contact us at sales@moxieinternational.com or (916) 259-7990.

About product

Moxie Shield 1800 Concrete Waterproofing Admix is suitable for all forms of cementitious construction and products. Moxie Shield 1800 creates a complex chemical reaction by converting the by-products of cement hydration into a higher density cementitious material creating an impermeable substrate. The unique chemistry of Moxie Shield 1800 forms an integral colloidal gel membrane prior to initial set. These colloidal gels eliminate the formation of capillary pathways and restrict the rapid evaporation of surface water. Moxie Shield 1800 increases freeze-thaw durability and becomes an integral curing compound.

For use on above grade
  • Airports
  • Arenas
  • Basements
  • Bridges
  • Concrete Pipes
  • Counter Tops
  • CMU
  • Foundations
  • Levees and Dams
  • Reservoirs
  • Retaining Walls
  • Secondary Containment Structures
  • Sewage and Water Treatment Plants
  • SRW
  • Swimming Pools
  • Tunnels and Subway Systems
  • Parking Structures
  • Underground Vaults
  • Semiconductor Plants
Advantages
  • Stops water vapor transmission above and below grade
  • Increases compressive and flexural strength
  • Provides a shrinkage compensating thermal barrier
  • Plasticizer-like characteristics
  • Curing compound sealer
  • Dust-proofing compound
  • Expels up to 90% of internal chlorides
  • Stops penetration of chlorides and hydrogen sulfides
  • Resists spalling and flaking
  • Resists lichen, moss and other accretions
  • Resists acids and sulfates erosion
  • Increases freeze-thaw durability
  • Resists transmission of hazardous gases including radon gas
  • Increases surface hardness
  • Corrosion inhibitor
  • Pumping and finishing aid
  • Increases high early strength, surface density and bond strength
  • Reduces internal chloride ion levels
  • Resists scaling
  • Resistant to acids, oils, fats and solvents
  • Resists rust and waterborne stains
Sustainability
  • Building for future generations – The Moxie Shield technology strengthens the inner structure of concrete and leads to longer lasting quality structures.
  • LEED Certification – Moxie Shield 1800 increases available LEED credits for projects.
  • Zero VOC (EPA 24 VOC) – The Moxie Shield technology is based on inorganic compounds.
  • Non-Toxic/Non-Hazardous – The liquid Moxie Shield 1800 is not toxic or hazardous; therefore, when protecting concrete from moisture intrusion it will not release toxic or hazardous emissions.
  • Water-Based – The technology is a water-based carrier for inorganic ingredients.
Standards compliance

IBC, SEC 1911 – EPA 24 VOC – EPA Marine – NCHRP 244 – ASTM C494 – UDOT USDA approved for use in food processing areas. Complies with OSHA 29 CFR- -1910.1200.

Packaging

Moxie Shield 1800 is available in 1 gal (3.8 L) and 5 gal (18.9 L) pails, 55 gal (208 L) drums and 275 gal (1041 L) totes.

“…we have been recommending the Moxie products…for the past 12 years. In over a hundred slabs where this product has been utilized based on our recommendations, we have never experienced moisture migration through the treated slab.”

John Youngdahl, P.E.
Principal Engineer

1800 Concrete Waterproofing Admix
1800 Concrete Waterproofing Admix
Description
About product

Moxie Shield 1800 Concrete Waterproofing Admix is suitable for all forms of cementitious construction and products. Moxie Shield 1800 creates a complex chemical reaction by converting the by-products of cement hydration into a higher density cementitious material creating an impermeable substrate. The unique chemistry of Moxie Shield 1800 forms an integral colloidal gel membrane prior to initial set. These colloidal gels eliminate the formation of capillary pathways and restrict the rapid evaporation of surface water. Moxie Shield 1800 increases freeze-thaw durability and becomes an integral curing compound.

For use on above grade
  • Airports
  • Arenas
  • Basements
  • Bridges
  • Concrete Pipes
  • Counter Tops
  • CMU
  • Foundations
  • Levees and Dams
  • Reservoirs
  • Retaining Walls
  • Secondary Containment Structures
  • Sewage and Water Treatment Plants
  • SRW
  • Swimming Pools
  • Tunnels and Subway Systems
  • Parking Structures
  • Underground Vaults
  • Semiconductor Plants
Advantages
  • Stops water vapor transmission above and below grade
  • Increases compressive and flexural strength
  • Provides a shrinkage compensating thermal barrier
  • Plasticizer-like characteristics
  • Curing compound sealer
  • Dust-proofing compound
  • Expels up to 90% of internal chlorides
  • Stops penetration of chlorides and hydrogen sulfides
  • Resists spalling and flaking
  • Resists lichen, moss and other accretions
  • Resists acids and sulfates erosion
  • Increases freeze-thaw durability
  • Resists transmission of hazardous gases including radon gas
  • Increases surface hardness
  • Corrosion inhibitor
  • Pumping and finishing aid
  • Increases high early strength, surface density and bond strength
  • Reduces internal chloride ion levels
  • Resists scaling
  • Resistant to acids, oils, fats and solvents
  • Resists rust and waterborne stains
Sustainability
  • Building for future generations – The Moxie Shield technology strengthens the inner structure of concrete and leads to longer lasting quality structures.
  • LEED Certification – Moxie Shield 1800 increases available LEED credits for projects.
  • Zero VOC (EPA 24 VOC) – The Moxie Shield technology is based on inorganic compounds.
  • Non-Toxic/Non-Hazardous – The liquid Moxie Shield 1800 is not toxic or hazardous; therefore, when protecting concrete from moisture intrusion it will not release toxic or hazardous emissions.
  • Water-Based – The technology is a water-based carrier for inorganic ingredients.
Standards compliance

IBC, SEC 1911 – EPA 24 VOC – EPA Marine – NCHRP 244 – ASTM C494 – UDOT USDA approved for use in food processing areas. Complies with OSHA 29 CFR- -1910.1200.

Packaging

Moxie Shield 1800 is available in 1 gal (3.8 L) and 5 gal (18.9 L) pails, 55 gal (208 L) drums and 275 gal (1041 L) totes.

“…we have been recommending the Moxie products…for the past 12 years. In over a hundred slabs where this product has been utilized based on our recommendations, we have never experienced moisture migration through the treated slab.”

John Youngdahl, P.E. 
Principal Engineer

1. BATCH PLANT & PLACEMENT PROCEDURES

Preparation

All equipment should be appropriate and suitable in accordance with the requirements of ASTM C94 Specifications for Ready Mixed Concrete. Ensure all concrete is prepared and placed in accordance with ACI 304 Measuring, Mixing, Transporting and Placing Concrete.

Batch plant mixing procedures
  1. Moxie International always recommends trial batching when using additional admixtures. If other admixtures are specified, please see Moxie Chemical Interactions Technical Bulletin #18-103.

Dosage Rate
  • 10 oz. per 94 lb sack of cement, or 10.64 oz per cwt (694 ml/100 kg) of cementitious materials (50 oz minimum per yd3). Include any other cementitious materials, such as fly ash, in the calculation. Field and laboratory tests show maximum benefits have been achieved at a recommended water-slump range of 3” to 3½” for standard concrete and 2” to 2½” for fly ash. Do not exceed a 0.52 w/(c+p) ratio regardless of slump. Higher water-slumps will result in increased slab drying time and permeability. Refer to the ASTM C94 Standard Specifications for Ready-Mixed Concrete.
  •  
Application
  1. Start with a clean mixer drum on the truck.
  2. Add the proper amount of Moxie Shield 1800 Admixture to a minimum of 20% of the batch water. In central mixing plants, Moxie Shield 1800 Admixture may be added to the entire, weighed amount of water. Reduce batch water gallons by the same amount of Moxie Shield 1800 Admixture that was added.
  3. Continue the batching process as per ASTM C94, including cementitious materials, aggregates, remaining batch water, and other additives. Do Not Use chloride-based set accelerators.
  4. There are no special cleaning procedures required for trucks returning to the plant, wash as usual.
  5. PROTECTION: Ensure that fresh concrete is protected from rain, wind, direct sunlight and freezing temperatures.
  6. FINISHING: If additional protection of surface moisture evaporation is needed, fog misting or an evaporation retardant/finishing aid may be applied per manufacturer instructions. For further questions refer to Moxie Engineering/Construction Considerations Technical Bulletin #18-102.
  7. CURING: Moxie Shield 1800 Admixture functions as a curing compound. To be eligible for the Moxie Shield Adhesion Warranty, curing compounds are not allowed. For further questions refer to Moxie Engineering/Construction Considerations Technical Bulletin #18-102.
  8. SLUMP: Maximum benefits have been achieved maintaining a 3” to 3½” water-slump, or 2” to 2½” for fly ash mix designs.
  9. TEMPERATURE: In harsh environments, follow ACI 305R Hot Weather Concreting and ACI 306R Cold Weather Concreting. During cool ambient temperatures, a non-chloride set accelerator may be used. Do Not Use chloride-based set accelerators. Moxie Fastset50 Accelerator, is a non-chloride set accelerator and may be used to reduce set time. Consult the Fastset50 Accelerator Specification Data Sheet or Moxie International Technical Department for additional information and dosage.
  10. WORKABILITY: Concrete may appear to be too stiff. It will, however, have the workability and finishing characteristics of a slump that is 1½” to 2” more than the tested slump. At the above w/(c+p) ratio there will virtually be no bleed water; inform finishers not to use bleed water as the primary indicator for finish timing. If there is any bleed water present, this indicates the water-to-cement ratio is too high, reduce the amount of water.
  11. PUMPING: Moxie Shield 1800 Admixture has characteristics of a pumping aid. There will be less line pressure in concrete pump.

Note: contact the moxie technical department (844) 845-1975 with any additional questions. Take necessary safeguards and precautions. Provide adequate protection for finished product during the first 72 hours against freezing or 7 days in high temperatures.

2. PRECAST PROCEDURES

Preparation​

All equipment should be appropriate and suitable in accordance with the requirements detailed in the Precast/Prestressed Concrete Institute (PCI) guidelines.

Precast mixing procedures

Moxie International always recommends trial batching when using additional admixtures. If other admixtures are specified, please see Moxie Chemical Interactions Technical Bulletin #18-103.

Dosage Rate

15 oz. per 94 lb. sack of cement, or 16 oz. per cwt (1040 ml/100 kg) of cementitious materials (50 oz. minimum per yd3). Include any other cementitious materials, such as fly ash, in the calculation. Do not exceed a 0.52 w/(c+p) ratio regardless of slump. Reduce batch water gallons by the same amount of Moxie Shield 1800 Admixture that was added.

Application
  1. Start with a clean mixing drum.
  2. For precast mixer configurations, Moxie Shield 1800 Admixture should be added to the entire weighed amount of batch water. At a minimum, Moxie Shield 1800 Admixture should be added to at least 20% of the batch water. Reduce batch water gallons by the same amount of Moxie Shield 1800 Admixture that was added.
  3. Continue the batching process as per standard plant procedures, including cementitious materials, aggregates, remaining batch water, and other additives. Do Not Use chloride-based set accelerators.
  4. There are no special cleaning procedures required for the concrete mixer, wash as usual.
  5. PROTECTION: Ensure that fresh concrete is protected from rain, wind, direct sunlight and freezing temperatures.
  6. FINISHING: If additional protection of surface moisture evaporation is needed, fog misting or an evaporation retardant/finishing aid may be applied per manufacturer instructions. For further questions refer to Moxie Engineering/Construction Considerations Technical Bulletin #18-102. 3.
  7. CURING: Moxie Shield 1800 Admixture functions as a curing compound. For further questions refer to Moxie Engineering/Construction Considerations Technical Bulletin #18-102.
  8. TEMPERATURE: During cool ambient temperatures, a non-chloride set accelerator may be used. Do Not Use chloride-based set accelerators. Moxie Fastset50 Accelerator, is a non-chloride set accelerator and may be used to reduce set time. Consult the Fastset50 Accelerator Specification Data Sheet or Moxie International Technical Department for additional information and dosage. 5.
  9. WORKABILITY: Concrete may appear to be too stiff. It will, however, have the workability and finishing characteristics of a slump that is 1½” to 2” more than the tested slump. At the above w/(c+p) ratio there will virtually be no bleed water; inform finishers not to use bleed water as the primary indicator for finish timing. If there is any bleed water present, this indicates the water-to-cement ratio is too high, reduce the amount of water.
  10. PUMPING: Moxie Shield 1800 Admixture has characteristics of a pumping aid. There will be less line pressure in concrete pump.

Note: contact the moxie technical department (844) 845-1975 with any additional questions. Take necessary safeguards and precautions. Provide adequate protection for finished product during the first 72 hours against freezing or 7 days in high temperatures. Always manufacture precast concrete within precast/prestressed concrete institute (pci) guidelines.

Documents and specifications:

Prior to use, we would recommend consulting the product label, product technical data sheet, and SDS sheet. For your benefit, this information is included below.

Can Moxie Shield 1800 Concrete Waterproofing Admixture be specified by CSI section, and does it satisfy waterproofing requirements in design documents?

Yes. Moxie Shield 1800 Concrete Waterproofing Admixture has a dedicated CSI Specification Sheet for straightforward inclusion in project specifications. It satisfies above-grade and below-grade waterproofing requirements across all cementitious construction types — slabs, walls, foundations, precast elements, and more. Because protection is integral to the concrete matrix, it can eliminate the coordination complexity of separate membrane or topical systems.

Does it negatively affect concrete’s finished appearance or design flexibility?

No. Moxie Shield 1800 Concrete Waterproofing Admixture does not alter the surface appearance of concrete. It is compatible with integral stains and color additives (note: color must be integral; topical color should be applied within a day or two). For decorative applications including stamped concrete, it actually improves workability and acts as a release aid — a functional bonus, not a constraint.

Will it help us achieve LEED credits?

Yes. Moxie Shield 1800 Concrete Waterproofing Admixture is water-based, zero VOC, and contributes to LEED points. A dedicated LEED documentation sheet is available to support your submittal pack- age.

What does it replace in our typical detail assemblies?

Depending on the design, it can replace physical vapour retarders, waterproofing membranes, shrinkage-reducing admixtures, and hardeners and curing agents — dramatically simplifying wall section and slab detail coordination. Fewer products mean fewer trades, fewer interfaces, and fewer points of failure.

What is the mechanism of action and how does it achieve impermeability?

Moxie Shield 1800 Concrete Waterproofing Admixture is an enhanced sodium silicate concrete densifier. During cement hydration it reacts within the matrix to form insoluble solids that fill and eliminate capillary voids — the primary pathways for moisture, chloride, and sulfate ingress. The result is zero detectable water transmission at pressures up to 200 psi. There are no membranes, coatings, or secondary systems involved.

How does it perform on chloride intrusion and rebar corrosion protection?

By eliminating capillary pathways, Moxie Shield 1800 Concrete Waterproofing Admixture prevents chlorides from reaching reinforcing steel — effectively eliminating the need for epoxy-coated rebar in most applications. Note: any exposed bar caps or ends remain temporarily shielded but should still be considered in corrosion-sensitive exposure conditions.

What ASTM testing has been completed, and what does it cover?

Moxie Shield 1800 Concrete Waterproofing Admixture meets the ASTM C494 specification as a Type S admixture. Supporting technical data includes freeze-thaw durability documentation, Tabor/Abrasion testing confirming densification, compressive strength, and project-specific mix design data. Technical data is available on request from the sales and engineering team.

What are the mix design constraints and how does it affect w/c ratio?

Maximum water/cement ratio is 0.52. Dosage rate is 11 oz. per 100 lbs. cwt of cementitious materials. The admixture replaces an equal volume of batch water. Compressive and flexural strength outcomes are mix-design dependent; higher strength results have been confirmed across documented projects. Consult Moxie’s technical department for other mix design questions.

Does it affect thermal performance during cure?

Rather than increasing curing temperature, Moxie Shield 1800 Concrete Waterproofing Admixture decreases thermal transmission — creating a temporary thermal barrier that minimizes heat loss or gain during the curing period. This reduces the moisture differential between the top and bottom of slabs, which helps control curling.

Does it address ASR and plastic shrinkage cracking?

Yes. Moxie Shield 1800 Concrete Waterproofing Admixture shuts down the mechanism that causes Alkali Silica Reactivity (ASR) and reduces plastic shrinkage cracking caused by rapid surface evaporation — two of the most common long-term durability risks in reinforced concrete.

When and where is the admixture added — at the batch plant or on site?

Moxie Shield 1800 Concrete Waterproofing Admixture is added at the batch plant, replacing an equal volume of batch water. There is no on-site mixing, no secondary application step, and no additional labor once the mix is designed. It arrives in the truck, ready to place.

Will it affect pumpability or workability?

Positively. Moxie Shield 1800 Concrete Waterproofing Admixture acts as a pumping aid — lubricating the mix and reducing line pressure. The slump may appear lower by measurement (e.g. 3” to 31⁄2” on the cone), but actual workability behaves like a higher 5” slump mix. The material is thixotropic, meaning it flows better under agitation. Finishing is easier, with reduced surface stickiness and more cohesive results.

Does it eliminate any of the separate products we’d typically apply?

Yes — in documented projects, Moxie Shield 1800 Concrete Waterproofing Admixture has eliminated the need for separate curing compounds, vapour retarder underlayment, and waterproofing membranes. Fewer products, fewer trades, cleaner sequencing.

Can it be used in marine environments or aquatically sensitive areas?

Yes. It is water-based with zero VOCs, making it compliant for use in environmentally sensitive zones. Moxie has documented success in fish hatchery construction — among the more demanding aquatic environments for concrete performance.

How is Moxie Shield 1800 Concrete Waterproofing Admixture integrated into our standard batching process?

It is added at the batch plant in liquid form, substituted for an equal volume of batch water. No new equipment is required. Add Moxie Shield 1800 Concrete Waterproofing Admixture into the mixer with 20% of the batch water before adding other ingredients. Dosage is 11 oz. per cwt of cementitious materials. It is compatible with all forms of cementitious construction — precast, cast-in-place, slab- on-grade, slab-on-deck, and architectural concrete products.

How does it interact with our existing admixture stack?

Moxie Shield 1800 Concrete Waterproofing Admixture replaces vapour retarder admixtures, shrinkage-reducing agents, and curing admixtures — meaning it typically simplifies your admixture program rather than adding to it. Mix design consultation is available through Moxie’s technical department.

What strength data exists, and how mix-design-dependent are results?

Strength outcomes are mix-design dependent. An ultimate strength increase should be expected. Cylinder compressive strength break histories from field batches — including Teichert data from 2015 — are available for technical review.

Where is Moxie Shield 1800 Concrete Waterproofing Admixture manufactured, and how do we source it?

Produced in Loomis, California. Contact the Moxie sales team at (844) 845-1975 or sales@moxieinternational.com to discuss supply, logistics, and batch plant onboarding.

Why should we specify Moxie Shield 1800 Concrete Waterproofing Admixture on our project?

Concrete that fails from moisture infiltration — cracking, rebar corrosion, mold, flooring failure, structural degradation — is expensive to remediate and disruptive to operations. Moxie Shield 1800 Concrete Waterproofing Admixture makes the concrete itself the waterproofing system, protecting the entire mass of the structure rather than relying on surface coatings or membranes that can fail at seams, joints, or penetrations. That means lower lifecycle costs, longer intervals between major repairs, and infrastructure that performs for generations.

What is the cost-benefit case?

The net benefit is positive across all documented projects. Savings come from elimination of sepa- rate waterproofing products, reduced vapour barrier labor, simplified construction sequencing, and — most significantly — dramatically extended service life. A dedicated Cost-Benefit Analysis docu- ment is available to support your capital planning process.

Is this technology proven, and are there references?

Moxie has over 50 years of field performance with no documented failures across residential, com- mercial, industrial, civil, and public infrastructure projects. Applications include tunnels, bridges, dams, levees, airports, arenas, water retention structures, and pools. Project examples and references are available on request from Moxie’s sales team at (844) 845-1975 or sales@moxieinternational.com.

Can it be used for water infrastructure, pools, or marine structures?

Yes. Moxie Shield 1800 Concrete Waterproofing Admixture is specifically engineered for environ- ments where concrete must resist hydrostatic pressure, chloride exposure, and sustained moisture — making it ideal for water retention structures, pools, dams, levees, marine wharves, and waterfront infrastructure. It is zero VOC and safe for aquatically sensitive environments.

Is there a CSI-formatted specification section available, and which division does it fall under?

Yes. Moxie Shield 1800 Concrete Waterproofing Admixture has a dedicated CSI Specification Sheet formatted for Division 03 — Concrete. It is written to drop into Section 03 30 00 (Cast-in-Place Con- crete) or equivalent sections for precast and specialty concrete applications. The specification lan- guage supports both prescriptive and performance-based approaches.

How do I write a substitution-resistant specification around this product?

Moxie Shield 1800 Concrete Waterproofing Admixture is the only vapour-proofing admixture on the market — competing products reduce water and vapour transmission but do not achieve true im- permeability. Specify zero detectable water transmission at up to 200 psi, elimination of capillary pathways, and ASTM C494 Type S compliance. Competitors who cannot demonstrate equivalent test performance cannot substitute. Moxie’s technical team can provide model specification language.

What independent testing and third-party documentation is available to defend the specification?

Available technical documentation includes: ASTM C494 Type S approval, freeze-thaw durability test data, Tabor/Abrasion testing, compressive strength break histories from field batches, and project-lev- el performance records spanning 50 years. All documentation is on file and provided upon request.

What does it replace, and how does that affect Division 07 and other spec sections?

Moxie Shield 1800 Concrete Waterproofing Admixture can replace physical vapour retarders and barriers (Division 07), waterproofing admixtures, shrinkage-reducing agents, and curing compounds. Specifying it as an integral admixture consolidates moisture protection into Division 03, potentially eliminating or simplifying related sections and reducing interface coordination risk.

Is a performance-based specification possible, or must it be proprietary?

Both approaches are viable. A performance-based spec can call for: zero measurable water trans- mission at 200 psi, elimination of capillary voids via reactive silicate chemistry, ASTM C494 Type S compliance, and maximum 0.52 w/c ratio. Because no other product simultaneously meets all these thresholds, this effectively functions as a sole-source basis of design.

Are there references from design professionals who have specified this product before?

Yes. Moxie can provide references from architects, specifiers, structural engineers, general contrac- tors, and batch plants across residential, commercial, industrial, civil, and public infrastructure sec- tors. Project documentation is also available at moxieinternational.com/projects/

.

CSI Specification Sheet — Division 03, Section 03 30 00 ready
ASTM C494 Type S Approval — Testing documentation
LEED Documentation Sheet — Point calculation and certification support
Safety Data Sheet (SDS) — Full ingredient and handling information
Freeze-Thaw Durability Data — Long-term performance testing
Tabor/Abrasion Test Results — Densification confirmation
Compressive Strength Break History — Teichert 2015 cylinder data
Cost-Benefit Analysis — Net positive ROI documentation
Project References — Architects, engineers, GCs, batch plants
UC Davis Project File — Curing compound elimination case study
Fish Hatchery Project File — Aquatically sensitive environment case study

Need proof?

How about fool proof.

40 years later and still no known equal.

STOPS WATER VAPOR
Stops transmission above and below grade
FREEZE THAW DURABILITY
Delivers more than 3x the durability of non-moxified concrete
CURING AGENT
Minimizes cracking, shrinkage and curling

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