Watco Concrex Fine Filler
- Lightwork of heavy-duty repairs
- Structural strength solutions
Watco Concrex Fine Filler is a two-part epoxy paste for small concrete repairs before painting. Use it to fill chips, scratches, bolt holes and surface blemishes that can become more noticeable under a new floor coating, particularly a gloss finish.
The components mix into a grey repair paste that presses easily into minor defects and can be feather-edged for a smooth transition. It suits floors and vertical surfaces, indoors or outside, and needs no primer. Mix small quantities as you work through scattered damage, rather than opening a large batch for a handful of shallow repairs.
Surface Preparation
Remove dust, grease, oil and contamination. The surface must be sound rather than loose or friable. Clean exposed steel reinforcement back to bright metal. Slight surface dampness is acceptable, but do not apply to wet surfaces.
Identify chips and scratches before coating and work the filler into each defect. For damage deeper than 5mm, use Watco Concrex Carbon Fibre or build the repair in layers as described in the technical sheet.
Technical Data
- Pack size: 1.5kg twin pack, producing approximately 1 litre of mixed filler.
- Type: two-part epoxy resin paste.
- Mixing ratio: 1:1 by weight or volume.
- Application thickness: up to 5mm; can be feather-edged.
- Working life: 10–15 minutes at 20°C; 20–30 minutes at 10°C.
- At 20°C: overpaint after approximately 1 hour, foot traffic after 3 hours and heavy traffic after 16 hours.
- Full hardness: approximately 4 days at 20°C.
- Supplied with gloves, spreader and two spatulas.
Directions for Use
Take equal portions of the off-white resin and black curing agent using the supplied spatulas. Mix on a suitable board until the paste is an even grey, with no streaks. Wear the gloves supplied and prepare only what you can apply within the working life.
Press into the damage with the plastic spreader and smooth flush. Wiping the scraper with a cloth dampened with white spirit makes finishing easier. Clean spills and tools before the filler cures. Once hardened, the repair can be painted with a suitable Watco coating or left as a wearing surface.
Limitations
Cure times increase in cooler conditions: at 10°C, allow approximately 2 hours before overpainting, 6 hours before foot traffic and 24 hours before heavy traffic. Full hardness takes around seven days at this temperature. Plan the coating and reopening schedule accordingly.
Store unopened packs at 10–30°C, protect from freezing and use within the 12-month shelf life. Remove food products during application and curing. Yield is given as mixed volume because coverage depends on the number, size and depth of the defects.
Product FAQs
Is a primer needed?
No primer is required. Apply to a clean, sound substrate; slight dampness is acceptable, but the surface must not be wet.
Can I mix only part of the pack?
Yes. Mix equal portions of resin and curing agent by weight or volume until uniformly grey. Prepare small amounts that can be applied within the working life.
How much filler does one pack make?
The 1.5kg twin pack produces approximately 1 litre of mixed filler. Area coverage depends on the depth and shape of the defects.
How soon can I paint the repair?
Allow approximately 1 hour at 20°C or 2 hours at 10°C before overpainting. These are initial-set times; heavy traffic and full hardness require longer.
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.
