The building must be weather tight and the temperature during application and drying must be above 5°C. Surface tempreture should be at least 3°C above the dew point. The steel surfaces should be prepared by abrasive blasting to SA2 1/2 Swedish Standard SIS 055900 or BS 7079; 1989. Wire brushing to SIS 055900 (1967) ST3 may be an acceptable alternative when blasting is not possible. The prepared steel surface must be primed with a suitable anticorrosive primer eg. fast drying epoxy blast primer, fast drying alkyd zinc phosphate primer or epoxy zinc phosphate primer.
The application rate for ALBI STEEL - PLUS; depends on the fire resistance period required and the Hp/A for each steel section. The table shows application rates for ALBI STEEL - PLUS for different section factors. For advice in calculating application rates please contact Rentokil Fire Protection Products.
ALBI STEEL - PLUS can be applied by brush, roller and airless spray.
Average application rates per coat:
ALBI STEEL - PLUS should be allowed 4 hours drying time between coats. At least 2-3 days must be allowed for the final coat to dry if a decorative overcoat is applied.
ALBI STEEL - PLUS does not require an overcoat however a conventional decorative system may be applied if required.
Any minor mechanical damage to the coating may be repaired by applying fresh material by brush or roller.