Intumescent coating

Protelack SFP

Fire protection
Protelack SFP and Protelack SFP FAST are single-component, solvent-based intumescent coatings designed for passive fire protection of steel structures.
Protelack SFP can be used on both carbon steel and galvanized steel.
Two versions
Protelack is available in two versions: Protelack SFP, Protelack SFP FAST – a fast-drying version. After curing, both provide identical fire protection performance.

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Aesthetic fire protection for steel

Protelack SFP and Protelack SFP FAST are intumescent, single-component, solvent-based coatings for passive fire protection of steel structures.

Thanks to their application, the fire resistance of steel structures can be increased to:

up to 120 minutes for open steel profiles

up to 90 minutes for closed profiles (beams and columns)

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Application

Interior and exterior use

With the addition of the Protefilm T topcoat, Protelack SFP and Protelack SFP FAST can also be used for exterior applications.

Fire resistance

PROTELACK SFP and PROTELACK SFP FAST coatings have been tested in accordance with EN 13381-8 for resistance to a standard (cellulosic) fire for up to 120 minutes.
When applied, the coating increases the fire resistance of steel structures – open profiles up to 120 minutes and closed sections of steel beams and columns up to 90 minutes.

Reaction to fire

PROTELACK SFP and PROTELACK SFP FAST coatings are classified as C-s2, d0 according to EN 13501-1 for metal structures.

CE marking

CE marking confirms that the product complies with EU construction product regulations under Regulation No. 305/2011 and EAD 350402-00-1106 “Reactive fire-protective coatings for steel elements.” The product holds a Declaration of Performance based on ETA 24/1185 issued by the Eduardo Torroja Institute for Construction Science.

Requirements and application

For steel elements exposed outdoors or in interiors with high humidity or condensation, two coats of the hard polyurethane topcoat (Protefilm T) are required before the intumescent coating is exposed to such conditions. Minimum dry film thickness: 120 µm.

Proper surface preparation is essential – the primer must adhere well, be clean, dry, and free from contamination.

Environmental conditions during application and drying:

PROTELACK SFP
Air temperature: 5–45 ºC
Relative humidity: < 85%
PROTELACK SFP FAST
Air temperature: 5–25 ºC
Relative humidity: < 85%
Substrate temperature: not lower than 5 °C and at least 3 °C above the dew point.

PROTELACK SFP system

The PROTELACK SFP fire-protective coating is part of the PROTELACK SFP system.

The PROTELACK SFP system consists of:

Primer coatings
PRIMELACK B, PRIMELACK S
Intumescent coatings
PROTELACK SFP, PROTELACK SFP FAST
Top coatings
PROTEFILM T

Characteristics

The Protelack SFP system is a multi-layer coating system consisting of:

anti-corrosion primer,

intumescent fire protection coating,

solvent-based topcoat.

High fire resistance (R90/R120).

Suitable for both interior and exterior use.

Aesthetic finish – topcoats available in full RAL color palette.

Can be applied over steel elements already primed with other epoxy primers (no need for removal), reducing project costs.

Classified for open profiles up to R120 and closed profiles up to R90.

For external applications (X): must be finished with Protefilm T polyurethane topcoat (120 μm thickness).

For internal applications (Z1): can be used without a topcoat – the white intumescent finish provides a clean appearance for interiors.

Technical specification

Gloss level	Matt
Color	White
Components	1
Density	1,34 ± 0,02 g/ml
Solids content	75% (ISO 3233) – slight deviations possible (±3%)
Application methods	Airless or conventional spray, brush, roller
Dry film thickness (DFT):
PROTELACK SFP	200-1500 μm
PROTELACK SFP FAST	200-1000 μm
Thinner	PRIMESOL AP