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The Definitive Guide

Why Gypsum Plaster?

Faster, cheaper and smoother than cement. Here's everything you need to know.

The Short Answer

For most homes and buildings, gypsum is the better choice

Cement plaster has been the default for decades. But builders and homeowners who switch to gypsum consistently report three things: the job finishes faster, it costs less in total, and the walls look better.

Gypsum gives a smooth, paint-ready surface without a putty coat. It sets in hours, not weeks. And it uses zero water for curing.

The one exception: bathrooms and external walls. Use cement there. For everything else โ€” internal rooms, ceilings, corridors โ€” gypsum wins every time.

Calculate Your Savings โ†’
At a glance
Savings per sq.ft of wallโ‚น15
Days to paint-ready5 days vs 21
Putty coat requiredNot needed
Water for curingZero
Wall weight35% lighter
Good for bathrooms?Not recommended
The Benefits

Why gypsum outperforms cement plaster

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Sets in Hours, Not Weeks
Gypsum sets within hours of application โ€” paint-ready in 5 days. Cement takes 21 days of curing, slowing your entire project.
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Skip the Putty Coat
A well-applied gypsum plaster gives a surface smooth enough to paint directly. Putty becomes optional โ€” saving โ‚น8โ€“12 per sq.ft of wall.
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Zero Water Curing
Cement plaster needs 30 litres of water per sq.ft per day for 21 days. Gypsum needs none. Massive cost and resource saving on large projects.
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35% Lighter Walls
Gypsum weighs 6โ€“8 kg per sq.ft vs 11โ€“13 kg for cement. Lighter walls reduce structural load โ€” important for multi-storey buildings.
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Better Fire Resistance
Gypsum contains crystalline water that releases when heated, slowing fire spread. It performs significantly better than cement in fire tests.
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Better Thermal Comfort
Lower thermal conductivity than cement โ€” your home stays cooler in summer and warmer in winter. Lower electricity bills over time.
Full Comparison

Gypsum vs Cement Plaster

Factorโœ“ Gypsum PlasterCement Plaster
Best forAll internal walls & ceilingsBathrooms, wet areas, external walls
Putty coatโœ“ Not requiredโœ— Required
Water curingโœ“ Zeroโœ— 30 lit/sq.ft/day ร— 21 days
Days to paint-readyโœ“ 5 daysโœ— 21 days
Surface qualityโœ“ Smooth โ€” paint directโœ— Rough โ€” needs putty
Wall weightโœ“ 35% lighterโœ— Heavy
Crack resistanceโœ“ Betterโœ— More prone to cracking
Fire resistanceโœ“ Superiorโœ— Lower
Thermal insulationโœ“ Betterโœ— Lower
Total cost vs cement+puttyโœ“ Save โ‚น15/sq.ft wallโœ— Costs more overall

Ready to switch to gypsum?

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