Watco Concrete Sealer Water Based
Litres required: 0.00L
Based on 8.0 m² per litre- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Concrete Sealer Water Based is a penetrating acrylic floor sealer for bare, porous concrete and sand and cement screeds. It binds dusty surface material and forms a protective film that helps resist staining and makes everyday cleaning easier in warehouses, garages, production areas and stores.
Choose Clear to retain the character of the concrete or Light Grey to add a subtle tint while sealing the floor. The breathable, low odour formulation is supplied ready to use, without a separate activator. Appearance depends on the floor's absorption and the number of coats: a trial area is particularly useful where an even grey colour or a specific sheen matters.
- Water based acrylic sealer and dustproofer for porous floors.
- Clear and Light Grey options.
- Apply with a soft broom or brush.
Surface Preparation
Sweep and vacuum thoroughly. Remove oil and grease with a suitable degreaser such as Watco Bio-D or Concroff, rinse away all residue and allow the floor to dry. Remove laitance mechanically; do not acid etch. New concrete should generally dry for four weeks in summer or six in winter. Avoid saturating highly porous screeds during cleaning.
Technical Data
| Pack options | Clear: 5L and 25L; Light Grey: 5L |
|---|---|
| Composition | Single pack, water based acrylic |
| Substrate | Bare, porous concrete and sand and cement |
| Application conditions | Air at least 15°C; floor at least 10°C |
| Light traffic / full use | 12 hours / 24 hours, subject to conditions |
Coverage
Approximately 40–50m² per 5L per coat, depending on porosity. Allow a conservative 8m²/L per coat for planning. Plan for two coats in line with the current specification table; additional coats can be needed on very absorbent floors or for a more even Light Grey tint.
Directions for Use
- Shake the container thoroughly to redisperse any settled material or pigment.
- Pour a small amount onto the floor and spread evenly with a soft broom or brush, working it into the substrate.
- Remove unabsorbed surplus and avoid puddles or thick patches.
- Where another coat is needed, allow six hours at 20°C or eight hours at 10°C. Allow twelve hours before light traffic and twenty-four hours before full use.
Limitations
Do not apply to painted, sealed or power floated concrete: penetration is essential. The surface must not be wet; only slight residual damp from cleaning is acceptable. For dense smooth floors, consider Watco Powerfloat Sealer. Do not steam clean the finished coating. Condition material at 15–25°C before use and protect from frost. Check suitability with Watco before exterior work, as the product page and linked technical sheet differ on exterior use.
Product FAQs
Is it suitable for power floated concrete?
No. It needs a porous surface. Watco Powerfloat Sealer is the specialist option for suitable smooth, dense concrete.
Will Light Grey hide the concrete completely?
It adds a tint rather than the hiding power of an opaque floor paint. Porosity affects colour, so apply a trial area.
How many coats should I allow for?
Plan for two coats using the current specification table. Particularly porous floors or an even grey tint can need more.
When can the floor be used?
Allow approximately twelve hours for light traffic and twenty-four hours for full use under suitable conditions.
Data Sheets
We aim to deliver your products as quickly, safely and efficiently as possible. Below you'll find a full overview of our delivery process, options, pricing and terms. If you have any questions or a time-sensitive order, our team is always happy to help — just give us a call on 01902 712286.
📦 Standard Delivery
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Free delivery on all orders over £100 + VAT within UK mainland.
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For orders under £100 + VAT, a standard shipping fee will apply at checkout.
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Orders are typically delivered within 2–5 working days after receipt of cleared payment.
We use Parcelforce and FedEx as our main carriers, though this may vary based on location or size of your order.
⚠️ Important Notes on Delivery
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Orders placed after 12 midday (Monday–Friday) are usually dispatched the next working day.
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If you require urgent dispatch or Saturday delivery, please call us before placing your order.
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Do not schedule contractors or start work until goods have arrived and been checked — we cannot be held responsible for project delays due to late or damaged deliveries.
🚚 Next Day & Timed Delivery Options
We offer express shipping for orders needing a quicker turnaround:
| Service | Typical Cost* (Ex. VAT) |
|---|---|
| Next Day Delivery | £10.50 |
| Next Day AM Delivery | £15.00 |
| Specialist Items | £22–£25+ |
*Pricing depends on order contents and size. For mixed/tinted paint or specialist coatings, next-day delivery may cost more due to courier restrictions.
Please contact us if your order is time-sensitive — we’ll confirm what options are available based on your products and location.
📍 Delivery Outside UK Mainland
International Delivery
We are pleased to offer worldwide delivery on both parcel and pallet orders.
Parcel Shipments
All international parcel deliveries are handled by FedEx International. Shipping times and costs vary depending on destination, parcel size, and service availability.
Pallet Shipments (Including Dangerous Goods)
For palletised orders — including those containing dangerous goods - we work with independent specialist freight companies experienced in compliant global hazardous materials transport.
Due to the nature of these shipments, pricing and transit times are provided on a case‑by‑case basis.
Requesting an International Delivery Quote
If you would like to place an international order, simply get in touch and we will prepare a personalised shipping quote. Please provide the following details:
- Your full name
- Delivery address (including country and any required customs information)
- Details of the items you would like to order
- Quantities for each item
Once we have this information, we’ll handle the rest - from calculating the most suitable shipping method to arranging safe and compliant delivery to your destination.
🛠️ Specialist Products & Pallet Deliveries
Some coatings are made to order, particularly from premium brands like Sigma/PPG. These orders:
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May have longer lead times
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May carry a £150 + VAT delivery charge
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Could require pallet delivery — a separate charge may apply
If your order requires palletisation, we’ll contact you after checkout to confirm delivery costs. You're also welcome to contact us first for a delivery quote before placing the order.
📦 Stock & Availability
We hold a large amount of stock ready for immediate dispatch, but:
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Some products may need to be ordered in from manufacturers
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Specialist items may be tinted or made to order, causing additional lead time
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We’ll always aim to part-deliver where possible to avoid unnecessary delays
If you’re on a strict deadline, please get in touch before ordering so we can advise on delivery timeframes.
🚫 Delivery Liability
While we work hard to ensure your order arrives safely and on time, we use third-party carriers and cannot be held liable for:
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Delays in transit
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Lost shipments
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Goods damaged in delivery
If your order is damaged or delayed, please let us know as soon as possible. We are not always informed automatically by the courier, so your input is essential.
We will work with you to resolve any issues — whether that means replacing items or chasing the carrier.
Note: Address changes after dispatch may incur additional charges, so please double-check your delivery details at checkout.
🧾 Payments & Order Processing
Orders are only processed once full cleared payment has been received.
You will receive email updates at each stage of the process:
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Pending – order received
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Processing – being picked, packed or manufactured
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Dispatched – on the way with the carrier
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Back order / Part dispatched – if stock is split or delayed
Need Help?
If you're unsure about shipping costs, timelines, or need your order by a specific date, we strongly recommend giving us a quick call before placing your order:
📞 01902 712286
📧 info@andrewscoatings.co.uk
We're here to help make sure you get the right product, in the right place, at the right time.
