LATICRETE

LATAPOXY Moisture Shield – Epoxy Vapour Barrier

$379.95 AUD
$379.95 AUD
Shipping calculated at checkout.

Prices shown exclusive of GST.

Going fast: 6 left
LATAPOXY Moisture Shield reduces moisture vapour emissions from concrete before compatible waterproofing membranes, tiles and floor coverings are installed. This two-part epoxy vapour barrier rolls onto prepared dry or damp substrates and can be used on green concrete at least seven days old. It provides a practical moisture-control stage for flooring systems where slab emissions exceed the finish manufacturer’s limits. Coat selection depends on testing, rather than a universal coverage figure. Check the required moisture performance and finish compatibility before installation; some adhesives and levelling compounds require a sand-seeded top coat.
Calculating estimated delivery

H2O AI Product Support

Technical and product guidance for the item you’re viewing.
  • For moisture-vapour reduction on prepared concrete slabs, concrete/brick masonry, cement renders and beds, and cement backer board.
  • Mechanically prepare concrete to ICRI CSP 3; remove laitance, efflorescence, curing compounds, sealers and contaminants.
  • Can be applied to damp surfaces without standing water, or green concrete at least seven days old.
  • Determine coat requirements by moisture testing and the selected floor finish’s limits; further coats may be needed.
  • LATICRETE 254 Platinum and LATAPOXY 300 are identified for direct bonding; other tile adhesives and SLUs require the specified sand-seeded top coat.
  • Where required, install HYDRO BAN or HYDRO BARRIER over cured Moisture Shield for waterproofing/crack-isolation treatment. Honour moving joints through the system.
  • Two-component epoxy coating; equal volumes Part A and Part B. Listed 20 L kit comprises 10 L of each component.
  • 20 L coverage: approximately 60 m² at nominal 150 microns DFT for one coat, or 30 m² at nominal 300 microns DFT for two coats.
  • Published 30 m² is complete two-coat coverage; do not divide it by two again. Rates exclude substrate and wastage allowances.
  • At 25°C: pot life 120 minutes. At 21°C: traffic 24 hours; full cure 7 days.
  • Allow 24 hours at 21°C before moisture testing or installing compatible finishes. Cold/damp conditions extend drying.
  • Porous-substrate recoat guidance: 2 hours at 21°C. Where a further coat is selected after moisture testing, allow the preceding coat 24 hours; these are different application stages.
  • Apply a top coat within two days at 21°C; older or rapidly cured installations require abrasive treatment for adhesion.
  • Sand-seeding preparation: 250-micron coat while wet/tacky; broadcast clean kiln-dried 0.3–0.5 mm sand to refusal, nominal 800 g/m²; remove loose sand after drying. Allow additional product for this coat.
  • Apply within the TDS surface-temperature range of 10–35°C and avoid condensation. No standing water; negative hydrostatic pressure above 2 bar is excluded.
  • VOC 5 g/L; shelf life one year in sealed containers stored dry, off the ground.
Technical Data Sheet Safety Data Sheet Safety Data Sheet — Part B

Estimate Material Requirements

Estimate the quantity of product required based on the project area. Calculations are indicative only and should be verified by the installer before application.

Recommended: 2 coats

Estimated Quantity Required
—
Total Coverage
—
Waste Allowance Applied
—

LATAPOXY Moisture Shield FAQs

Can it be applied to damp or new concrete?
Yes. The PDS permits prepared dry or damp concrete, with no standing water, and green concrete at least seven days old. Age alone does not establish readiness: prepare the surface correctly and verify the moisture performance required by the finishing system.
How much does a 20 L kit cover?
Approximately 60 m² for one coat at nominal 150 microns DFT, or 30 m² for the complete two-coat application at nominal 300 microns DFT. Porosity and site waste increase consumption. Further coats may be required to achieve the specified moisture-vapour emission rate.
Do I need one coat or two?
Testing and the floor finish’s moisture limit determine the requirement. The PDS associates one coat with lower moisture-vapour emissions and two coats with higher emissions, such as pool shells and external work. Retest after treatment; add coats if the required result has not been achieved.
When can flooring or waterproofing follow?
Nominally after 24 hours at 21°C on dry surfaces, provided the treated substrate meets the finish manufacturer’s moisture limits. Cold or damp conditions extend curing. Seven days is the listed full-cure time; the 24-hour installation stage is separate.
Can any adhesive go directly over Moisture Shield?
No. LATICRETE identifies 254 Platinum and LATAPOXY 300 for direct bonding. Other tile adhesives and self-levelling underlayments require the specified sand-seeded top coat. Confirm compatibility for vinyl, timber and other floor finishes.
Does it replace a waterproofing membrane?
Where waterproofing or crack isolation is needed, the PDS specifies a suitable membrane such as HYDRO BAN or HYDRO BARRIER over cured Moisture Shield. Moisture-vapour reduction does not resolve moving joints or cracks.
What does the coverage calculator include?
The calculator estimates the selected coat count from 60 m² per 20 L kit per coat and includes a stated 10% allowance. It defaults to two coats. It does not choose the required moisture performance or include an additional sand-seeding coat; allow separately where those are required.

Need Technical Advice?

Not sure if this product is suitable for your project?

Our technical team provides independent advice on product selection, compatibility and waterproofing systems.

Independent product advice backed by real-world waterproofing experience.

Contact Technical Support
(07) 3667 9878

Monday–Friday
7:00 am – 3:00 pm AEST

Warehouse Stocked
Fast Australia-wide Delivery
Expert Technical Advice
Secure Checkout

Frequently Purchased Together

These popular picks are often added by trade professionals to complete their project kits.