When you’re prepping wood and metal surfaces for a flawless finish, the Fleetwood Advanced Undercoat sets the stage for a professional result every time at TJ O’Mahony. This premium water‑based undercoat uses Fleetwood’s advanced resin technology to give excellent adhesion, opacity and drying performance — perfect for both trade decorators and DIY enthusiasts who want dependable coverage and a smooth base for topcoats.
Formulated to work with interior and exterior paints, it’s ideal for priming bare or previously painted timber, metal and a wide range of surfaces before applying your chosen Fleetwood Advanced topcoat. The quick‑dry, low‑odour formula helps you keep jobs moving, letting you undercoat and topcoat in the same day when conditions allow
Key Features:
Water‑Based Technology: Easy application and clean‑up with warm soapy water.
Excellent Adhesion & Coverage: Flat undercoat with great opacity, ready for topcoats.
Quick Dry & Low Odour: Keeps projects moving with recoat times of 2–4 hours.
Interior & Exterior Use: Suitable base layer for wood, metal and more.
Durable Finish: Designed to help deliver up to years of performance when topcoated correctly
Technical Specifications:
Product Code: UNA01BW
Coverage: Approx. 10–12 m²/Ltr depending on surface texture.
Dry Time: Recoat in ~2–4 hrs.
Finish: Flat undercoat.
Application: Brush / Roller.
Clean‑Up: Warm soapy water.
Use: Interior & exterior wood and metal
TJ’s Tip:
Before undercoating, ensure surfaces are dry, clean, and lightly sanded for the best adhesion. Apply one even coat of undercoat and allow it to properly cure before finishing with your topcoat — this helps create a smoother, longer‑lasting painted finish.
* Effective from 3 December 2025 * Free delivery on order over €400, applies to Small & Light, Large & Heavy items within zone 1 only.
Zone Indicator:
To help you understand delivery availability, every item displays a zone icon, icons appear on the top-right corner of each product image:
Types of goods
Available zones
Descriptions
Small & light items
All Zone area
Items under 20kg weight & under 2m long, (some fragile items may not be included e.g. glass/mirrors)
Large and bulky items Extra Large items
Zone 1 & 2 only
Wet & hazardous bagged, items over 20Kg weight & oversized; Euronics white goods, TVs of all sizes.
Large Paint items (6L / 6L+)
Zone 1 only
Large hazardous items (6L+) - available for collection
Available zones
Indicator
Descriptions
All zone area
This icon with all zone area in green, indicates this items can be shipped to all Zone.
Zone 1 & 2 only
Zone 1 & 2 in green and zone 3 greyed out, indicates this product can only be shipped to Zone 1 and 2
Zone 1 only
Zone 1 in green zone 2 and zone 3 are greyed out, indicates this product can only be shipped to Zone 1 only.
Old Appliance Collection:
When you buy a large appliance, we’ll collect your old one for free through WEEE Ireland. Please ensure it is uninstalled, disconnected, and ready for pickup. Collection is like-for-like and takes place at the front door or apartment entrance. Restrictions may apply based on access and item type.
At TJ O'Mahony we will exchange or refund any Retail unused product returned to us in its original condition within 30 days of receiving it (*)You can return any unused product to us in its original condition for a full refund or exchange within 30 days of delivery.
This right to return does not apply to products that are non stock and only available to order such as catalogued doors, catalogued bathroomware and mixed paints which are made especially for your order.
Please note that we are unable to accept returns on certain bagged building products and materials, including (but not limited to) hard wall, cement, bonding, slates, and ridges. We appreciate your understanding and recommend checking product requirements carefully before purchase.