Hi, jules . While still available use a solvent based impregnator in a wet room situation, water based also fine but reacts differently showing shadows as water penetrates the capillary .
If you know the make of the original impregnator you can deep clean this back with a light alkali cleaning product ,leave until fully dry ,several days and re impregnate with the same product. When applying, saturate the product in small controlled sections for saturation time then remove all excess with a cloth or towel - do not leave a wet look finish to dry in !!!
If you do not know the original sealer , strip back impregnator with a suitable stripper , leave 5-7 days or until fully dry to release all moisture. Re- seal with your chosen impregnator . This will ensure there is no congealing with the old impregnator, maintain with the recommended daily cleaner for the impregnator .
Wet areas and shower enclosures impregnate every 1-1/2 - 2 years rest should do 4-5 years if correctly maintained
Cheers
If you know the make of the original impregnator you can deep clean this back with a light alkali cleaning product ,leave until fully dry ,several days and re impregnate with the same product. When applying, saturate the product in small controlled sections for saturation time then remove all excess with a cloth or towel - do not leave a wet look finish to dry in !!!
If you do not know the original sealer , strip back impregnator with a suitable stripper , leave 5-7 days or until fully dry to release all moisture. Re- seal with your chosen impregnator . This will ensure there is no congealing with the old impregnator, maintain with the recommended daily cleaner for the impregnator .
Wet areas and shower enclosures impregnate every 1-1/2 - 2 years rest should do 4-5 years if correctly maintained
Cheers