One System. One Solution: Why Hilux + Terrix Beat Gypsum and Dulux
One board, one coat plaster, one coat paint – delivering certified 60-minute fire protection and saving up to £15/m².
Summary
The Hilux + Terrix Internal Wall System replaces outdated gypsum and Dulux methods with a faster, safer, and more cost-effective solution. One Hilux board replaces two layers of gypsum, Terrix spray plaster eliminates skim coats, and Terrix spray paint achieves a durable, anti-mould finish in a single coat. This reduces costs by up to £15/m², speeds up programmes, and ensures long-term compliance with modern fire and housing regulations.
Introduction
The construction industry has long defaulted to gypsum boards, skim plaster, and emulsion paints like Dulux. But with modern demands for higher fire safety, faster programmes, and healthier, mould-free environments, these old methods no longer suffice.
The Hilux + Terrix Internal Wall System provides a proven alternative, combining Ramco Hilux calcium silicate boards with Terrix spray finishes to deliver walls that are safer, quicker to install, and more cost-effective over their lifetime.
Hilux vs Gypsum: One Board, Not Two
When specifiers want a 60-minute fire wall, the standard gypsum solution requires two 15mm plasterboards. Hilux does the same job with just one 12mm calcium silicate board — saving thickness, materials, labour, and up to £15/m².
And unlike gypsum, Hilux isn’t vulnerable to damp, mould, or sagging.
Key advantages include:
A1 Fire Classification to EN 13501-1
Systems tested up to 4 hours fire resistance
Water, mould, and termite resistance
40-year service life with independently verified EPD
Stronger acoustics and thermal performance
In short: Hilux outperforms gypsum on every front — fire, moisture, durability, and cost.
Terrix vs Dulux: One Coat, Not Three
Conventional emulsions like Dulux, Crown, or Johnson’s require a mist coat plus two further coats. That’s three layers, three drying times, and more chances for snagging.
Terrix is different:
One spray coat = finished surface
Anti-mould, vapour-permeable, antibacterial finish
A1 fire classification — safer than organic film-forming paints
Zero flashing or patch marks, even on repairs
Up to 5x faster than roller-applied emulsions
That’s why healthcare, education, and housing providers are making the switch.
Terrix Spray Plaster: Faster and Snag-Free
Traditional skim plaster is slow and often cracks. Terrix spray plaster eliminates those risks:
Benefits:
One-coat spray application — no skim, no mist coat
Productivity of 500m² per man per day
Zero cracking, zero flashing
Vapour-permeable, breathable, snag-free finish
Next-day paint-ready in most conditions
Together with Hilux boards, this creates a seamless, durable wall system that’s faster and cheaper to deliver.
Case Studies: Proof in Practice
Blackpool Victoria Hospital: Terrix completed 3,000m² of wall finishes in just 9 days vs a 3-week estimate, cutting cost and programme time.
Vinci Construction: Now uses Terrix as their preferred wall finish across healthcare projects.
Social Housing Providers including Irwell Valley Homes, Clarion Housing, and Great Places are specifying Terrix to comply with the Social Housing (Regulation) Act 2023 and Awaab’s Law — ensuring long-term mould prevention.
The Bottom Line
The Hilux + Terrix system delivers what gypsum + Dulux cannot:
One 12mm board replaces two gypsum boards
One coat spray plaster replaces skim + mist coats
One spray paint coat replaces two or three Dulux coats
That means:
✅ Lower cost
✅ Faster delivery
✅ Higher safety
✅ Long-term durability
It’s time to break the cycle of over-layering and underperforming systems. The Hilux + Terrix Internal Wall System is the smarter alternative for modern housing, healthcare, and commercial projects.
Find out how Hilux + Terrix can transform your next project. Contact us at info@ramcouk.co.uk or call 01785 472 299.