Watco New Concrete Primer
Litres required: 0.00L
Based on 2.5 m² per litre- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco New Concrete Primer is a two part epoxy primer that allows suitable newly laid concrete floors to be coated while they still contain construction moisture. It forms a barrier against moisture vapour at up to 98% relative humidity, helping reduce the waiting time normally needed before painting new industrial floors.
The virtually solvent free, high solids formulation penetrates prepared concrete and provides a base for compatible Watco floor coatings. It is designed for interior concrete and sand and cement surfaces where residual moisture would otherwise restrict the choice of floor paint. Its dark grey finish also makes it easier to inspect coverage and identify missed areas before applying the topcoat.
- Moisture-tolerant primer for new concrete, up to 98% RH.
- Two component, 100% solids epoxy formulation.
- Usually one full coat on sound, reasonably good quality concrete.
Surface Preparation
The floor must be sound and free of dust, contamination and weak material. Mechanical preparation, such as shot blasting or scarifying, is preferred; vacuum thoroughly afterwards. Smooth power floated concrete needs suitable mechanical preparation. Switch off underfloor heating at least two days before application and leave it off for at least two days afterwards, then raise the temperature gradually.
Technical Data
| Pack size / colour | 8kg / Dark Grey |
|---|---|
| Use | Interior concrete and sand and cement |
| Moisture tolerance | Up to 98% RH |
| Minimum conditions | Air 15°C; floor 10°C |
| Pot life | 1 hour at 15°C |
| Shelf life | 6 months unopened |
Coverage
Allow approximately 20–25m² per 8kg at a wet film thickness of 250 microns. The calculator uses the conservative 20m² rate (2.5m²/kg). Porous or open-textured concrete may need more material or a second coat.
Directions for Use
- Combine the complete resin and curing agent pack and mix thoroughly, scraping the sides and base. Do not leave mixed material standing in the container: decant immediately into a roller tray.
- Work into the prepared surface with a medium pile roller, using a brush at edges. Aim for a continuous coat without pinholes or missed patches.
- Inspect after drying and apply another coat where needed to achieve a complete moisture barrier.
- At 15°C, allow 16 hours before a compatible 100% solids Watco topcoat; water based coatings require 24–48 hours. Lightly abrade if more than 4–5 days elapse before overcoating.
Limitations
This primer needs a suitable finish and correct preparation. A single coat may not seal highly porous concrete completely. Screed or repair overlays can require two coats with a sand-blinded second coat: follow the technical sheet for the full system. Store at 15–25°C for at least eight hours before use and protect from frost. Mixed epoxy generates heat, so transfer it promptly to a tray.
Product FAQs
Can it be used on new concrete?
Yes. It is designed to suppress construction moisture in suitable new concrete at up to 98% RH before a compatible floor coating.
How much does a pack cover?
Approximately 20–25m² per 8kg at 250 microns. More material may be required on porous or open-textured surfaces.
When can I apply the topcoat?
At 15°C allow 16 hours for compatible 100% solids Watco coatings, or 24–48 hours for water based coatings. Check the complete coating specification.
Is one coat enough?
Usually on sound, good quality concrete. Inspect for pinholes and missed patches; additional coats may be needed to form a continuous barrier.
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.
