Supplied in Australia and New Zealand by Y Block Pty Ltd · Manufactured by Maeda Road Construction, Japan
ContactWater-activated pothole repair
Aqua Patch is a high-performance, water-activated cold-mix repair product for asphalt and concrete surfaces. Pour it into a wet pothole, sweep it level, add water and stamp flat. No mixing. No heating. No petroleum-based solvents.
Aqua Patch repair sequence
Stage 01
Empty the bag directly into the pothole. The bag is ready to use — no mixing or heating.
Stage 02
Sweep or rake the product level across the hole, leaving a shallow allowance above the surface for compaction.
Stage 03
Pour at least 1 L of water per 20 kg bag; 2 L is a safe field rate. Excess water is acceptable.
Stage 04
Compact immediately after watering. Drive over the repair straight away; it is hard as a rock an hour later. Allow about 2 hours at intersections and turning areas.
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Aqua Patch repair sequence
Empty the bag directly into the pothole. The bag is ready to use — no mixing or heating.
Sweep or rake the product level across the hole, leaving a shallow allowance above the surface for compaction.
Pour at least 1 L of water per 20 kg bag; 2 L is a safe field rate. Excess water is acceptable.
Compact immediately after watering. Drive over the repair straight away; it is hard as a rock an hour later. Allow about 2 hours at intersections and turning areas.
What is Aqua Patch?
Aqua Patch is a high-performance, water-activated cold-mix repair product for asphalt and concrete surfaces. It is supplied ready to use in 20 kg bags — no mixing, heating or special plant required.
Made in Japan, Aqua Patch combines a graded hard-stone aggregate with a proprietary plant-based binder. It contains no petroleum-based solvents. Water triggers the chemical reaction that hardens the mix, rather than waiting for a solvent to evaporate.
Activation
Water
Format
20 kg bag
Strengths
A permanent, water-activated patch that can be opened to traffic immediately and reaches hot-mix-like strength without heating or solvents.
Install in the rain, or pour directly into a water-filled pothole. No pumping required.
Drive over it straight after watering and compaction. Hard as a rock an hour later. Allow about 2 hours at intersections and turning areas.
Independent testing shows 5.0 kN Marshall stability and 1,900 MPa resilient modulus after 7 days. Wheel-track rut just 1.5 mm after 24 hours conditioning.
A bio-based binder replaces around 50% of the asphalt binder. No petroleum-based distillate solvents; no hydrocarbon leaching or evaporation per the SDS.
Comparisons
Generic category comparisons, based on the product format and manufacturer information. Individual site conditions and methods vary.
Traditional cold-mix asphalt
Relies on solvent evaporation to cure, stays soft for months, tracks onto tyres and is often pushed out of the hole, leading to repeat repairs.
Aqua Patch
Water-activated chemical reaction; cures solid with no sticky residue.
Hot-mix asphalt
Needs heating, heavy plant, specialised crews and complex logistics; must be placed before it cools.
Aqua Patch
Ready to use in a bag; no heat or heavy plant; one person with a shovel, water and a tamper can apply it.
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Use cases
Aqua Patch is suited to localised pavement defects and reinstatement work where a fast, contained repair is needed.
Localised surface defects in asphalt pavements, including water-filled potholes.
Small reinstatement areas around service trenches and utility openings.
Edge repairs and localised levelling around covers and frames.
Shallow surface defects and uneven transitions in pedestrian and vehicle areas.
Repairs where standing water is present and pumping is impractical.
Subject to road authority approval, TTM requirements and site-specific specifications.
Reactive patching and small-batch maintenance across urban and regional networks.
Localised repairs where fast reinstatement matters and heavy plant access is limited.
Small, contained repairs using basic hand tools.
Repair of localised surface hazards in controlled-access areas.
How to use it
Five steps, one person and a standard hand tamper. The method is deliberately simple; site-specific requirements still apply.
Tools required
A shovel or rake, water, and a hand tamper. That is the basic kit.
Sweep out loose debris, dirt and large rocks. Standing water does not need removing.
Empty the bag into the hole. For holes deeper than 50 mm, place and compact in layers.
Sweep or rake the product level, leaving about 30% above the surrounding surface for compaction — roughly 15 mm on a 50 mm repair.
Pour water evenly over the patch — at least 1 L per 20 kg bag. 2 L is a safe field rate, and excess water is acceptable.
Compact immediately after watering. Drive over the repair straight away; it is hard as a rock an hour later. Allow about 2 hours at intersections and turning areas.
Follow your road authority’s TTM requirements and WHS procedures, wear appropriate PPE, and read the Safety Data Sheet (SDS).
A 2.5-minute guide to the product and application method.
Quantity calculator
Enter the repair dimensions to estimate the Aqua Patch required. The calculation includes the 15 mm compaction mound and your waste allowance.
Included in the estimate
Estimated requirement
Enter the repair dimensions and select Calculate quantities to see an estimate.
Estimates only. Confirm quantities for your site conditions.
Compacted density: 2,300 kg/m³ (manufacturer coverage data). 60 bags per 1.2 t pallet.
Client experience
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Client feedback
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How to buy
Aqua Patch is supplied in 20 kg bags and 60-bag pallets (1.2 t). Pay for pallets online by card, or contact us for project quantities, freight and account terms.
For councils, contractors, distributors and property managers. Fields marked * are required.
Direct contact
Prefer to speak to someone? Contact Y Block Pty Ltd directly.
Y Block Pty Ltd · Dante Cremasco, Principal
Buy 13 mm pallets online by card. Each pallet contains 60 bags. Card details are entered on eWAY’s secure hosted page; freight is quoted separately.
Pay by cardBulk pallet orders, freight, trials, supplier registration and WHS documentation. Contact us for project quantities and account terms.
Procurement details for councils and contractorsWhere to buy
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29 Robinson St, Brighton East VIC 3187
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Showing: Aqua Patch Australia Office
About
Supplied in Australia and New Zealand by Y Block Pty Ltd
Y Block Pty Ltd is the Australian and New Zealand supplier of Aqua Patch. Our mission is to bring a faster, greener, permanent infrastructure maintenance solution to councils, contractors and residents across both countries.
Local support and dispatch from the Epping, Victoria warehouse, with Caboolture, Queensland stock available on request. Y Block Pty Ltd · ABN 23 757 080 744 · ACN 626 968 401 · ATF Air Cooled Trust.
Manufacturing partner
Aqua Patch is manufactured in Tokyo by Maeda Road Construction Co., Ltd., one of Japan’s largest asphalt producers. JALUX Inc. is the international distributor. Y Block Pty Ltd holds the exclusive importation and distribution rights for Australia and New Zealand.
From manufacture in Japan to arrival at distribution hubs in Australia and New Zealand.
FAQ
Common questions answered from the current technical documents. Contact us for project-specific advice.
View all frequently asked questionsYes. Aqua Patch is water-activated and can be applied in wet conditions or directly into a water-filled pothole. Excess water is acceptable; standing water does not need to be pumped out.
Straight-line traffic can drive over the repair immediately after watering and compaction. It is hard as a rock an hour later. Allow about 2 hours at intersections and in areas where wheels turn on the patch.
Use at least 1 L of water per 20 kg bag. Around 1.5 L is typical, and 2 L is a safe field rate. Excess water will not damage the repair. The site calculator uses 2 L per bag as a conservative allowance.
Unopened bags have a 12-month shelf life from the manufacturing date. Once opened, use the bag promptly and seal any remainder tightly; moisture in the air will begin the curing reaction.
