POP (Plaster of Paris) ceiling is a traditional and very popular false ceiling method in India. POP is a fine white powder (calcined gypsum) that, when mixed with water, forms a smooth paste that sets quickly into a hard, mouldable plaster. It is applied over a chicken-mesh / frame to create seamless ceilings, decorative cornices, coves, intricate designs and mouldings. POP is prized for its excellent finish and design versatility at low material cost.
POP follows IS 2547 (Gypsum Building Plaster). POP is widely available from brands like Sakarni, Trimurti, JK, Saint-Gobain, Bharat, RD Gold.
Plaster of Paris is produced by heating gypsum (calcium sulphate dihydrate) to ~150 °C, removing most of its water to form calcium sulphate hemihydrate. When re-mixed with water it rapidly rehydrates & sets into a hard, smooth plaster. For ceilings it is applied wet over chicken mesh / a fibrous base & frame, then finished smooth or moulded.
| Type | Description |
|---|---|
| POP False Ceiling | Full ceiling on mesh / frame |
| POP Cornice | Decorative border / moulding at wall-ceiling junction |
| POP Cove / Pelmet | Curved coffer for concealed lighting |
| POP Punning / Plastering | Smooth finish over walls / ceiling |
| POP Mouldings / Medallions | Decorative ceiling roses, motifs |
| Multi-Level POP | Layered designer ceilings |
| POP + Gypsum Combination | Gypsum board base + POP finish |
| Property | Value |
|---|---|
| Material | Calcium sulphate hemihydrate |
| Setting Time | 8–25 minutes (initial) |
| Finish | Smooth, seamless, paintable |
| Fire Behaviour | Fire-resistant (releases water) |
| Weight | Lightweight |
| Water Resistance | Poor (degrades when wet) |
| Thickness | 12–25 mm (ceiling) |
| Parameter | POP | Gypsum Board |
|---|---|---|
| Form | Wet plaster over mesh | Factory board on metal frame |
| Construction | Wet, slower, messy | Dry, fast, clean |
| Finish | Seamless, mouldable | Smooth (jointed) |
| Design | Excellent (intricate) | Good |
| Crack Resistance | Can crack | Better |
| Material Cost | Lower | Higher |
| Labour | High (skilled) | Moderate |
| Wastage | Higher | Low |
| Wet Areas | No | MR board OK |
See Gypsum Boards for the dry-construction alternative.
| Item | Cost |
|---|---|
| POP Powder (per bag 25–40 kg) | Rs 250 – 500 |
| POP False Ceiling (plain, per sqft installed) | Rs 55 – 110 |
| POP Designer / Multi-Level (per sqft) | Rs 100 – 250 |
| POP Cornice (per running ft) | Rs 30 – 120 |
| POP Punning (per sqft) | Rs 15 – 35 |
| Standard | Description |
|---|---|
| IS 2547 (Part 1–2) | Gypsum Building Plaster (POP) |
| IS 2095 | Gypsum Plaster Boards (related) |
| IS 8272 | Gypsum Plaster for Special Applications |
| IS 12860 | Gypsum / POP Cornices & Mouldings |
| BS 1191 | Gypsum Building Plasters |
POP ceiling remains the favourite for seamless, intricate, designer false ceilings & cornices in Indian homes — unmatched for mouldability and finish at low material cost. Its drawbacks are wet, labour-intensive installation, moisture sensitivity (never in wet areas), and crack risk. For crack resistance, many use a gypsum board base finished with POP.
For dry, fast construction, see gypsum boards; for waterproof / budget, PVC panels; for office grid ceilings, Armstrong grid / mineral fibre tiles; for premium, wooden ceiling.