Watco Liquid Roof Membrane Anti Slip
Litres required: 0.00L
Based on 0.93 m² per litre- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Liquid Roof Membrane Anti Slip combines a flexible waterproof roof coating with an included aggregate for textured maintenance and access routes. Its water based acrylic formulation is applied cold, forming a seamless protective system on suitable flat and pitched roofs.
The Mid Grey coating is fibre loaded and designed to accommodate movement while resisting UV and weathering. It is useful where the roof specification needs both waterproof protection and an anti-slip surface. The complete system still depends on correct preparation, reinforcement, coat thickness and drying conditions; the grit provides texture within that system rather than replacing any waterproofing layer.
- Flexible acrylic roof membrane with included anti-slip additive.
- Roller application, with no heating equipment.
- For suitable roof maintenance and emergency access routes.
Surface Preparation
Inspect the roof and repair defective, blistered, loose or unsound areas. Remove dirt, debris and contamination, treating moss and fungal growth with an appropriate cleaner. Leave the substrate clean and dry; slight residual damp is acceptable, but wet or icy surfaces are not. Check compatibility with the existing roof and prepare joints and penetrations carefully.
Technical Data
| Pack sizes / colour | 5L and 15L / Mid Grey |
|---|---|
| Composition | Single pack acrylic membrane plus anti-slip additive |
| Finish | Textured, semi-gloss |
| Coats | At least 2 with specified first-coat reinforcement |
| Minimum conditions | Air 15°C; surface 10°C |
| Shelf life | 12 months unopened |
Coverage
Approximately 5–7m² per 5L or 14–21m² per 15L per coat. Allow for both coats and detailing, using a conservative 0.93m²/L per coat for planning. The required texture and local roof details may affect consumption.
Directions for Use
- Stir the coating thoroughly without thinning and brush material into joints and around penetrations.
- Apply the main first coat by suitable pile roller, fully reinforced with the specified scrim.
- Use the linked technical sheet for planning: at 20°C wait at least twenty-four hours before recoating and complete within seven days; at 10°C use the specified forty-eight-hour to three-day window.
- After applying the second coat, scatter the supplied grit evenly over the wet coating and allow the system to dry. Follow the instructions to achieve the intended texture.
Limitations
Do not apply with rain forecast within forty-eight hours, RH above 85%, or cold, static or saturated conditions. Keep to the specified coverage and avoid wet or icy substrates. The product is not recommended for gutters. Slip resistance also depends on cleanliness, contaminants and correct grit distribution. Plan access only after the full system has dried under suitable conditions. Protect material from frost and follow both GB safety sheets.
Product FAQs
Is the anti-slip additive included?
Yes. The system includes the roof membrane and additive. Scatter the grit evenly into the wet second coat as directed.
Does the aggregate replace reinforcement?
No. The first coat must still be fully reinforced with the specified scrim.
How much material should I allow?
Use the stated per-coat coverage and allow for at least two coats, plus details. Do not treat a pack's single-coat area as the finished two-coat coverage.
Is it suitable for roof access routes?
The manufacturer lists maintenance and emergency access routes. Confirm the complete system and intended traffic before use.
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.
