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In the event of fire, FIRE-RETARDANT COATINGS must reduce the heat and fire transmission.
A number from 0 to 5, classify the level of coatings (from: 0 = not combustible to 5 = easily combustible) RENNER fire reaction coatings reach Class 1 when applied on MDF non-fire retardant board.
The fire resistance is measured by the time in minutes needed to alter completely the original properties of the wooden load-bearing structures. The fire resistance class are reported in the following way:
- R90: means 90 minutes resistance to fire
- R120: means 120 minutes resistance to fire
Find out more about fire-retardant varnishes:
