Terraco EIFS render and textured finish — continuous external insulation over EPS.
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Terraco Textured Coatings are ready-mixed, acrylic/silicone resin-bound decorative render finishes that Technopol SA applies as the reinforced, weatherproof outer skin of an EIFS wall — the Terracoat topcoat laid over a Styrobond DP basecoat and Terramesh glass-fibre mesh on the EPS insulation board.
| Property | Value | Standard |
|---|---|---|
| Product type / build-up | Ready-mixed acrylic/silicone resin-bound textured render; reinforced weatherproof outer skin of an EIFS wall (Terracoat topcoat over Styrobond DP basecoat + Terramesh mesh on EPS board) | — |
| Finish grades & grain (texture) size | Excel / Granule / Sahara — 0.8 to 3 mm | — |
| Thermal conductivity (λ) / R / U | Not applicable — the coating is the finish skin, not the insulation; λ belongs to the separate EPS board | — |
| Specific gravity (wet coating) | 1.65–1.70 (Excel 1.70; Granule / Sahara 1.65) | — |
| Adhesion / pull-off bond strength | >2.0 N/mm² | — |
| Water resistance | Sd <0.10 m (vapour-permeable); W24 <0.15 kg/m²·h^0.5 (liquid-water uptake) | — |
| Reaction to fire (coating itself) | Flame Spread Class 0 | ASTM E84 |
| Fire performance (full EIFS system) | PASS — temperature, flame-spread & mechanical criteria (facade fire-spread; a reaction-to-fire result, not a fire-resistance rating) — 5-yr test validity at/past expiry; reconfirm | SANS/BS 8414-2:2017 |
| Material consumption / coverage | 1.5–4.5 depending on grade (Technopol calc ~2.0; 25 kg pack ≈ 12.5 m²) kg/m² | — |
Grade-dependent: grain size, specific gravity and consumption vary across the Excel, Granule and Sahara grades (0.8–3 mm grain). Specific gravity is the wet-coating value (dimensionless) — it is not an insulation density. The coating is the finish skin; thermal conductivity (λ), R- and U-values belong to the separate EPS / mineral-wool insulation board, not to the render. Fire scope: 'Class 0' is a reaction-to-fire (flame-spread) rating of the coating per ASTM E84. The SANS/BS 8414-2 PASS is a full-system facade fire-spread test (report FTC 21/033, Issue 1, 22 June 2021) on the exact assembly: pigment primer + Terraco Granule Filled 1.5 mm Sil, over Styrobond DP + Terramesh on 50 mm Technopol LiteCel FRCel EPS (Grade FR100) with 300×50 mm StoneWool firebreaks per floor. It is NOT a fire-resistance (REI) rating — the inner wall must separately achieve its required FRR per SANS 10177-2. The system may only be built exactly as tested. Full EIFS system carries a 12-year installer guarantee (commercial, not a material property). Fire-test validity: the SANS/BS 8414-2 facade-fire result (report FTC 21/033) is at or past its 5-year validity (≈ June 2026); confirm the current certificate before specifying.
Values from Technopol technical documentation. Confirm the exact figures for your specification with Technopol.
The same product does a different job in each of these assemblies — each page states the target, the clause and the limits.
Each figure is labelled with how we know it — a named in-validity test, a supplier value, an in-house calculation, or a test whose validity has expired.
| Property | Value | Standard | Source report | Status |
|---|---|---|---|---|
| Reaction to fire (coating) | Flame Spread Class 0 | ASTM E84 | — | Provisional |
| Fire performance (full EIFS system) | PASS (facade fire-spread, reaction-to-fire not FRR) | SANS/BS 8414-2:2017 | FTC 21-033 | Lapsed |
| Adhesion / pull-off bond strength | >2.0 N/mm² | — | Provisional | |
| Specific gravity (wet coating) | 1.65–1.70 | — | Provisional |
Labels are defined on our data promise; every source report is on the test-report register.
A material specified for the wrong job fails you, then us. We would rather lose the order.
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