Watco Tack Coat
- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Tack Coat is a two-part epoxy adhesive primer for use with the Watco Concrex concrete repair range. Its 100% solids epoxy formulation creates a bonding layer between the prepared substrate and repair mortar, helping achieve adhesion on shallow repairs, intricate edges and surfaces where additional bonding is needed.
Use this concrete repair primer before screeding with Concrex or applying Concrex Vertical. It is suitable for work on floors, steps, ramps and walls, with internal and external applications on concrete, metal and masonry. For repairs using Watco Concrex Deep Fill, Tack Coat is recommended on smooth or damp substrates where the mortar needs an adhesive bonding coat.
Tack Coat is applied sparingly with a brush or roller, making it straightforward to work into edges and smaller repair areas. The important step is to place the repair mortar while the primer is still tacky: allow it to develop its tack, then overlay before it sets to a hard film. This is a bonding primer for the repair system, rather than a finished floor coating.
- Epoxy bonding primer: supports adhesion for Concrex mortar and screeding work.
- Shallow and detailed repairs: useful around edges and intricate areas.
- Two coverage options: choose the pack for approximately 1m² or 6m² of prepared surface.
- Brush or roller application: apply one thin coat and overlay at the tacky stage.
Surface Preparation
Good surface preparation is essential for an effective bond between the substrate, primer and repair mortar. Remove dust, loose material and poorly bonded paint; roughen sound coatings to provide a key. Wire-brush or grind rust from metal, degrease and allow it to dry. Prime prepared metal promptly. Remove ice from the substrate.
Technical Data
| Formulation | 100% solids epoxy; resin and curing agent |
|---|---|
| Pack coverage | 0.34L: approximately 1m²; 2L: approximately 6m² |
| Suitable surfaces | Concrete, metal and masonry |
| Coats / Tools | One thin coat / brush or roller |
| Pot life | Maximum 20 minutes at 20°C in a shallow tray |
| Ready to overlay | Approximately 60 minutes at 15–20°C; three hours at 5°C |
| Shelf life | 24 months, unopened |
Directions for Use
Empty the smaller tin into the larger and mix thoroughly with a wide blade. Decant the larger pack into a shallow tray and use immediately. Mixed material left in the tin can heat rapidly. Apply sparingly, then place Concrex mortar while the primer remains tacky.
Limitations
Do not allow the bonding coat to harden before overlaying. Protect stored packs from frost and condition at 15–20°C for eight hours before use. Read both safety sheets.
Product FAQs
Which pack should I choose?
The 0.34L pack treats approximately 1m²; the 2L pack treats approximately 6m². Coverage varies with the surface.
When should I apply the repair mortar?
Apply while Tack Coat is tacky, before it hardens: typically after about 60 minutes at 15–20°C, or three hours at 5°C.
Can it go over paint?
Yes, provided the paint is sound. Remove loose paint and roughen firmly bonded coatings first.
What if the primer has hardened?
Brush on a fresh coat, preferably within 24 hours, then apply the mortar while tacky. Follow the technical sheet.
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
-
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.
