Watco Concrex Flex
Litres required: 0.00L
Based on 0.12 m² per litre- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Concrex Flex is an epoxy concrete repair mortar for floors exposed to vibration, movement and repeated impact. Its modified resin blend gives a degree of flexibility, helping repairs resist cracking where a rigid mortar may struggle. Use it around ramps, guide rail surrounds and damaged floor joint edges in busy working areas.
The mid-grey mortar is suitable for internal and external repairs to concrete, sand and cement, and metal. It provides a hard-wearing, non-dusting finish that can be left exposed or painted once cured. This is a useful option when choosing a floor repair compound for an area where movement matters as much as surface strength.
Surface Preparation
Remove loose material, dust, oil and grease, leaving a clean, sound and dry surface. Wire brushing and sweeping are usually sufficient for loose debris; use a suitable degreaser where needed.
Rough patch repairs do not normally need priming. Watco Tack Coat is recommended for thin screeds over smooth surfaces, non-porous or metal substrates, and intricate or high-impact details. Damp surfaces must be primed with Tack Coat; do not apply the mortar to a wet substrate.
Technical Data
- Pack size: 10kg; colour: mid-grey.
- Composition: finely graded sand pre-blended with epoxy resin, with separate curing agent.
- Coverage: approximately 1.2m² per pack at 5mm thick.
- Hole filling: normally 5–50mm thick.
- Screeding: maximum 15mm thick.
- Working life: approximately 30 minutes.
- Typical curing time: 3–6 hours, depending on temperature.
- Shelf life: 12 months unopened; store at 10–30°C and protect from freezing.
Directions for Use
Tip the resin and sand blend onto a mixing board or into a suitable tray. Shake the curing agent, add it to the blend and work thoroughly with a trowel until the mortar has an even colour and consistency. Wear suitable protective gloves and follow the pack instructions.
Compact firmly into the repair and finish with a steel float. Wipe the blade with a cloth dampened with white spirit to reduce drag. Feather the perimeter only where most of the repair remains at least 5mm thick. For deeper repairs, apply separate layers, allowing 6–8 hours between them.
Limitations
Low temperatures extend curing; at 10°C and below, hardening can become very slow or stop. Plan application in warmer conditions. The 50mm depth applies to holes, not broad screeds. Coverage reduces as depth increases. Remove food products from the area during application and curing, and consult the data sheets before use.
Product FAQs
Where should I use Concrex Flex?
Use it for floor repairs exposed to movement, vibration or impact, including ramps, guide rail surrounds and damaged floor joint edges.
Does it need a primer?
Rough patch repairs usually need none. Use Tack Coat on damp, smooth, non-porous or metal surfaces, for thin screeds and for intricate or high-impact repairs.
How deep can I apply it?
Apply 5–50mm for hole filling, with a maximum of 15mm for screeding. Deeper repairs need separate layers; feather only the perimeter where the main repair is at least 5mm thick.
How much will one pack cover?
A 10kg pack covers approximately 1.2m² at 5mm thick. Actual consumption depends on depth and the shape of the damage.
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.





