Watco Epoxy Damp Proof Membrane
Litres required: 0.00L
Based on 2.5 m² per litre- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Epoxy Damp Proof Membrane is a two part epoxy moisture barrier for interior concrete floors affected by rising damp. It is designed for situations where the original damp proof membrane is missing or ineffective, helping suppress moisture vapour before a compatible floor coating is applied.
The virtually solvent free, 100% solids formulation tolerates concrete moisture levels up to 98% RH. A full, continuous coat provides the barrier, making preparation and careful inspection particularly important. Suitable projects include industrial and commercial concrete or sand and cement floors where moisture would otherwise interfere with the selected coating system.
- Epoxy moisture barrier for floors with an absent or defective DPM.
- Tolerates moisture levels up to 98% RH.
- Dark Grey finish helps show complete coverage.
Surface Preparation
Ensure the concrete is sound and free of contamination, weak material and dust. Mechanical preparation by shot blasting or scarifying is preferred, followed by thorough vacuuming. Smooth power floated concrete requires mechanical preparation. Turn underfloor heating off at least two days before application and leave it off for two days afterwards, then restart gradually.
Technical Data
| Pack size / colour | 8kg / Dark Grey |
|---|---|
| Composition | Two part, 100% solids epoxy |
| Use | Interior concrete and sand and cement |
| Moisture tolerance | Up to 98% RH |
| Minimum conditions | Air 15°C; floor 10°C |
| Pot life / shelf life | 1 hour at 15°C / 6 months unopened |
Coverage
Allow approximately 20–25m² per 8kg at a wet film thickness of 250 microns. The calculator uses 20m² per pack (2.5m²/kg). Rough, open-textured or very porous concrete can require a second coat to close pinholes and complete the barrier.
Directions for Use
- Combine the full resin and curing agent pack and mix thoroughly, scraping the container base and sides.
- Decant immediately into a roller tray: mixed epoxy left in the container can generate considerable heat.
- Apply a full coat with a medium pile roller, using a brush at edges. Inspect when dry and cover pinholes or missed areas with another coat.
- At 15°C, wait 16 hours before suitable 100% solids Watco topcoats, or 24–48 hours for water based coatings. If more than 4–5 days elapse, lightly abrade before overcoating.
Limitations
A moisture barrier must form a continuous film. Do not rely on a thin, patchy coat over highly porous concrete. Flowtop and similar screed or repair overlays can require two coats with the second sand blinded; follow the full system instructions. Condition material at 15–25°C for at least eight hours and protect from freezing. This membrane is specified as a preparation layer beneath compatible finishes.
Product FAQs
What problem does this membrane address?
It suppresses rising damp and moisture vapour in suitable interior concrete where the original damp proof membrane is missing or ineffective.
What moisture level can it tolerate?
Up to 98% RH, provided the substrate and application meet the manufacturer's specification.
How many coats are needed?
Usually one full coat on good quality concrete. Inspect carefully and apply another where porosity, pinholes or missed areas prevent a continuous barrier.
When can it be painted?
At 15°C, allow 16 hours for suitable 100% solids Watco coatings and 24–48 hours for water based finishes. Follow the selected system's instructions.
Data Sheets
Safety Data Sheet – Curing Agent (GB)
Safety Data Sheet – Resin (GB)
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.
