Cotton plaster: a natural coating for interiors
DEPKA cotton plaster, the decorative cotton wall coating chosen for interiors, is made of cotton fibre, natural adhesive and decorative natural stone. It is not silk plaster: it contains no synthetic fillers and is prepared with warm water only.
It helps with thermal and sound insulation, providing up to 40% energy savings on heating and cooling. Its elastic structure does not crack, covers hairline cracks in the wall and is easy to repair after small alterations. The 60 main colours and mixed shades give you hundreds of patterns.
Shell plaster
Ceramic plaster: a stone look for facades
The one place cotton plaster cannot go is the exterior facade. Ceramic-based shell plaster fills that gap: it is made from high-strength acrylic resin and crushed ceramic granules, and is also known as ceramic plaster and granite plaster.
Because it carries the main colours of granite and marble, it gives the facade the look of a single slab of stone. It is waterproof, does not fade, and its flexible structure copes with movement in the building. So with DEPKA, you can finish both the inside and the outside of a building with one product family.
Which plaster for which wall
| Area | Suitable product | Why |
|---|---|---|
| Living room, bedroom, office | Cotton plaster | Warm texture; helps with thermal and sound insulation; colour and pattern made for you |
| Children's room, nursery, school | Cotton plaster | Flexible, impact-resistant texture; a scratched area is moistened and smoothed |
| Ceiling | Cotton plaster | Lightweight, puts no load on the building; helps reduce noise from the floor above |
| Stairwells and high-traffic interior areas | Shell plaster or crystal ceramic plaster | Washable, durable surface |
| Facade, balcony | Shell plaster | Waterproof; resists sun, moisture and wind; does not fade |
| Facade insulation | Exterior insulating plaster | A separate product for insulating facades |
Contact us and we will help you choose the right product for the surfaces and conditions on your project.
Preparation
Two products, two different applications
Cotton plaster
Add 4 litres of warm water to each 1 kg of product; mix for 20–25 minutes, leave to rest for 20 minutes and mix again for 5 minutes. Spread with the transparent DEPKA trowel; most surfaces need no primer, and it dries in 12–24 hours. 1 kg covers 3.5–4 m²; a 2 kg pack costs 1,600 TL with free shipping within Türkiye (Türkiye price; for export orders, please contact us).
Explore →Shell plaster
20 kg set: 15 litres of water, thickener, shell granules and adhesive are mixed to a mortar consistency. The primer supplied with the set goes on first, then the mortar is applied with a steel trowel; do not apply below 5 °C. One set covers 18–20 m²; call us for the price.
Explore →Cotton plaster and shell plaster projects
Frequently asked questions
Can cotton plaster be used on exterior walls?
No. Cotton plaster is made for interior walls and ceilings. On surfaces exposed to rain and sun, shell plaster is the better choice; for facade insulation there is exterior insulating plaster.
Are shell plaster and crystal ceramic plaster the same product?
Both are ceramic-based, but they are separate products. Shell plaster is sold as a set; crystal ceramic plaster has a leaf pattern, comes in 16 colours (DP-S01–DP-S16) and costs 2,400 TL.
How much does shell plaster cost?
Shell plaster is sold as a set. For the current price, contact us on WhatsApp (+90 532 059 87 83).
Send us your measurements and we'll suggest the right plaster
Interior, facade or both: together we'll work out which product suits you and how much you need.
