PEI Rating
PEI rating (Porcelain Enamel Institute) refers to surface abrasion test of glazed tiles. The test, resistance to surface abrasion of glazed tiles intended for use on floors, is conducted according to EN 10545-7 which is a requirement of EN11441, Ceramic tiles – Definitions, classification, characteristics and marking.
PEI rating is only given to glazed tiles, full body or through body porcelain without glazing are not given this rating. Unglazed, full body floor tiles are tested for resistance to deep abrasion of unglazed tiles: the test value is removed volume, in cubic millimetres and the test method is EN10545-6.
PEI rating indicates the wear resistance of the glazed tile surface and this value can be used to determine suitability of the floor tile for specific uses.
The recommendations for suitability of the tile using the PEI Ratings are as follows:
Class 0 - No Foot Traffic:
Wall tile only and should not be used on floors.
Class 1 - Very light traffic:
Very low foot traffic, bare foot only. (Master Ensuite, spa bathroom).
Class 2 - Light Traffic:
Slipper or soft-soled shoes. Second level main bathroom areas, bedrooms.
Class 3 - Light to Moderate Traffic:
Any residential area with the possible exception of some entries and kitchens if extremely heavy or abrasive traffic is anticipated.
Class 4 - Moderate to Heavy Traffic:
High foot traffic, areas where abrasive or outside dirt could be tracked. Residential entry, kitchen, balcony, and countertop.
Class 5 - Heavy Traffic:
Ceramic tile suggested for residential, commercial and institutional floor subjected to heavy traffic.
