If your wall soaks up your paint, is it really the colour’s fault? 👇

Haymes Ultraseal gives DIYers flawless walls — but most discover it after it’s too late

June 23, 2025

Create a Smooth Surface That Makes Colour Sing – Without the Stress

Why the first coat you choose matters more than most people think

Haymes Ultraseal is not the sort of product that sits quietly in the background — even though that’s exactly what it does for your walls. It’s the secret weapon behind some of the cleanest, most even-looking paint jobs you’ll ever see. If you’ve ever stood back and thought your final coat looked a bit... patchy or dull, chances are the issue started way before your brush even touched it.

And when you're painting new plaster walls, especially in older houses or freshly renovated rooms, getting that base right makes all the difference between a frustrating redo and a finish you’re proud to show off.

Just Sealer? Not Exactly.

Think of Haymes Ultraseal like a good underlay beneath a carpet. You might not see it, but if you skip it, you’ll feel it — every bump, groove, and uneven patch. It’s a water-based acrylic sealer undercoat that locks in the surface, evens out absorption, and creates a flawless canvas for your top coats to shine.

No strong fumes or chemical odours
Fast drying — recoat-ready before your cuppa’s gone cold
Sandable to a soft, smooth finish
Works under water-based and oil-based top coats
Ideal for broad wall applications on plaster and plasterboard

And the best part? You don’t need to be a pro to use it. A good roller, a steady pace, and the right prep — and you're on your way to paintwork that looks sharp and lasts.

From Patchy to Picture-Perfect: A Real Customer Story

A local couple recently came in — fresh from moving into a downsized home in Strath. The lounge had been freshly plastered, and they’d picked a lovely warm beige for the walls. But two coats in, the colour still looked uneven. It wasn’t the paint – it was the bare plaster sucking it up unevenly.

They were ready to start over—and rightly cautious. We suggested rolling on one straightforward coat of Ultraseal, then lightly sanding it for a velvet-smooth base. When they added their chosen colour after that, the difference was night and day. Even finish. Rich tones. No streaky surprises.

“We didn’t realise how important the undercoat was ‘til we saw the paint go on afterwards. It was like looking at a whole different colour — and we hadn't even switched tins!”

Why Dry Plaster Drinks Paint (And What Ultraseal Does About It)

Fresh plaster seems harmless. But it’s like a thirsty sponge — soaking up paint unevenly and leaving blotches or dull patches behind. Ultraseal acts like a moisture balancer. It gives you one consistent layer, so your coloured top coat sits on top — not sinking in or soaking through.

Little Details That Make It Worthwhile

GreenTag Certified – choose a product that’s better for your home and the environment
Excellent Coverage – hides minor imperfections and patches
No Overwhelming Odours – comfortable for use indoors, around family or pets

You can apply it with a regular 10–12mm nap roller like the Uni-Pro Microfibre Roller, which we always recommend for sealing coats on broad wall surfaces. Pair it with a reliable roller tray and extension pole from our accessories section in-store to make quick work of big walls — and don’t forget a soft sanding sponge to finish the surface once it’s dry.

The Flow-On Benefits of Getting the Base Right

Choosing to use Ultraseal doesn’t just save your top coat — it saves time, money, and frustration. You use less paint overall, get better coverage per coat, and avoid the dreaded ‘patch test’ moment where you realise the spot near the corner looks off in daylight.

Still Thinking “Do I Really Need It?”

Ask yourself this: Do you want a finish that lasts and looks professional, or are you okay with spending time (and money) redoing it six months later?

A half-day spent sealing could save you full days of touch-ups or regret.

Whether you're bringing new life to a guest room or giving your lounge its first proper paint since the '80s, Ultraseal is the quiet achiever in the background — making your colours cleaner, your coverage better, and your finish smoother.