Watco Oil Block Primer
Litres required: 0.00L
Based on 4.0 m² per litre- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Oil Block Primer helps prepare oil-contaminated, porous concrete for a suitable heavy duty epoxy floor coating. Its penetrating two part epoxy formulation is intended for residual mineral oil contamination that remains after thorough cleaning, such as on workshop and garage floors that have absorbed oil over time.
Good preparation still matters: remove as much contamination as possible before priming. The primer helps address deep-seated residues that conventional cleaning alone may struggle to remove, creating a base for a compatible 100% solids epoxy finish. It stains the substrate black and must be overcoated; it is a preparation stage rather than a finished wearing surface.
- Specialist primer for residual mineral oil in porous substrates.
- Solvent based, two component epoxy resin.
- Brush application helps work the primer into the floor.
Surface Preparation
Scrape or grind away as much oil and contamination as possible. Degrease with a suitable cleaner such as Watco Concroff, rinse away all traces of cleaner and allow the surface to dry. The substrate must be sound and porous. Do not use the primer as a shortcut over loose dirt, pools of oil or inadequately cleaned deposits.
Technical Data
| Pack size | 4L |
|---|---|
| Finish | Black stain |
| Use | Interior |
| Minimum application temperature | 10°C |
| Pot life | 30 minutes at 20°C |
| Shelf life | 24 months unopened |
Coverage
The current product page gives approximately 16m² per 4L (4m²/L). The technical sheet gives a broader 15–20m² range depending on the substrate. Apply a full coat around 250 microns wet film thickness and do not exceed the specified 350 micron maximum.
Directions for Use
- Pour all resin and curing agent into the clean outer container. Mix thoroughly with a wide bladed stirrer, scraping the base and sides.
- Transfer to another suitable vessel or roller tray and apply promptly within the pot life.
- Brush one good coat well into the surface. If using a medium pile roller, work backwards and forwards to promote penetration.
- Overcoat with a suitable 100% solids epoxy after approximately 16 hours and within 24 hours. If this window is exceeded, abrade to provide a key before coating.
Limitations
Intended for mineral oil residues; it is not normally suitable for vegetable oil contamination. Do not use on metal, previously painted or non-porous surfaces. Avoid conventional single pack floor paints or most water based acrylics that could be softened by oil. The product contains flammable solvent: provide suitable ventilation and follow both component safety sheets. Store cool and dry, away from ignition sources, and protect from frost.
Product FAQs
Can it replace degreasing?
No. Remove as much oil as possible, degrease, rinse and dry before priming. The product is intended to help with residual deep-seated mineral oil.
Can I leave it as the final floor finish?
No. Oil Block Primer is not a wearing surface and needs a compatible topcoat.
Which type of topcoat is required?
The technical sheet specifies a suitable 100% solids epoxy coating. Do not use oil-sensitive conventional single pack floor paint or most water based acrylics.
When should I overcoat?
Approximately 16–24 hours after priming under suitable conditions. If more than 24 hours has elapsed, abrade the primer to form a key.
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
-
Free delivery on all orders over £100 + VAT within UK mainland.
-
For orders under £100 + VAT, a standard shipping fee will apply at checkout.
-
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
-
Orders placed after 12 midday (Monday–Friday) are usually dispatched the next working day.
-
If you require urgent dispatch or Saturday delivery, please call us before placing your order.
-
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:
-
May have longer lead times
-
May carry a £150 + VAT delivery charge
-
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:
-
Some products may need to be ordered in from manufacturers
-
Specialist items may be tinted or made to order, causing additional lead time
-
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:
-
Delays in transit
-
Lost shipments
-
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:
-
Pending – order received
-
Processing – being picked, packed or manufactured
-
Dispatched – on the way with the carrier
-
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.
