Eco-Tech Building Solutions
Argatherm
Argatherm is a lime-based skim coat with thermal mineral fillers, for walls and ceilings inside and out. It trowels to a semi-smooth finish that smooths a Diathonite wall for paint...
Argatherm is a lime-based skim coat with thermal mineral fillers, for walls and ceilings inside and out. It trowels to a semi-smooth finish that smooths a Diathonite wall for paint while keeping it breathable, and its microporous fillers add insulating value of their own (λ 0.128 W/mK). Applied 2–10 mm total in 1.5 mm passes; overcoat with Argatherm Ultrafine where a fully smooth surface is wanted.
Key Features
- Compressive ≥ 15 N/mm² (CS IV, R2)
- Fire class A1
- Reinforced with natural 200 µm microfibres
- Full dry in 5–7 days
$2.68/ft² material cost (covers ~75 ft² at 3 mm thick)
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Size
Technical Details
Specifications
Technical Performance
Product specifications
Technical Documents
5 documents
Certifications
3 certifications
Key Features
Product highlights
Application
How to apply
Coverage & Yield
Application rates
Technical Performance
| Sizes | 25 kg |
|---|---|
| Yield | 1.2 kg/m² per mm (±10%) |
| Yield on Diathonite plasters | 3.6 kg/m² per 3 mm (±10%) |
| Thickness | 2–10 mm total; max 1.5 mm per layer |
| Application temperature | +5°C to +35°C |
| Shelf life | 12 months |
| Between layers | ~12/24 hours at 23°C / 50% RH (firm to the touch) |
| Full drying | 5–7 days at 23°C / 50% RH |
| Thermal conductivity (λ) | 0.128 W/mK |
| Vapour permeability (µ) | ≤ 15 |
| Reaction to fire | Class A1 |
| Compressive strength (28 days) | ≥ 15 N/mm²; class CS IV / class R2 |
| Density (hardened) | 1150 ± 10% kg/m³ |
| Capillary water absorption | Category W0 |
| Standard | EN 998-1:2016 |
Technical Documents
Certifications
Key Features
Application
Coverage & Yield
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