FIRE-RESISTANT SMOOTH FINISH FOR UPGRADING
9mm - 12½mm PLASTERBOARD AND LATH-AND-PLASTER CEILINGS
TO ONE HOUR OF FIRE PROTECTION
DESCRIPTION
A white aqueous dispersion coating, offering protection to plasterboard and lath-and-plaster ceilings of various thicknesses. The coating develops a microporous intumescent layer with a smooth decorative finish. When attacked by fire, the intumescent material protects the coated area’s integrity and insulation for a period in excess of one hour. Envirograf® Product 92 (ES/AEC acrylic emulsion coating) can be applied over the smooth coating.
USE
Apply to 9mm or 12½mm thick plasterboard in two coats at 8m² per litre per coat. For a smooth finish, apply with a brush. For a stippled finish, apply with a short-pile roller. Using three coats at 6m² per litre per coat, decorative lath-and-plaster ceilings (see above) can be upgraded to one hour of fire protection. See data sheet when specifying. For textured finish, see Envirograf® Product 96.
PERFORMANCE
This product underwent a fire resistance test in accordance with BS476 Parts 20, 22, and 23 (1987), applied to plaster-coated 9mm thick plasterboard and nailed to a timber-stud partition. The treated partition system achieved a fire resistance (insulation and integrity) of 71 minutes. The product also underwent a fire resistance test in accordance with BS476 Part 21 (1987), applied to 12½mm thick plasterboard beneath a loaded timber floor. The timber floor system achieved a fire resistance of 61 minutes (insulation, integrity, and load-bearing capacity). Also tested to BS476 Part 21 load-bearing lath-and-plaster ceiling for 60 minutes (insulation, integrity, and load-bearing capacity).
ORDERING REFERENCES
EP/CP Smooth Coating for 9mm and 12½mm Plasterboard (white)
AEC Acrylic Emulsion Coating (semi-gloss top coat ONLY)
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