am just starting to levell my kitchen floor using wickes deep base slc as i have dips of up to 15mm in the worst place etc i have done all prep work on the floor scraping all loose debris,filled holes cracks with mortar repair,vaccumed up all dust,cleaned floor with detergent & finally priming with wickes floor primer...i had a slope in the under stairs cupboard of approx 10mm so decided to do this section of slc 1st...mixed a bag up using a whisk,poured over the floor spreading evenly with a trowel...before leaving alone to find its on levell which it did no problem...only problem was i could see quite a few airbubbles ? left overnight to dry returning today to be quite impressed with a nice new floor very flat & level...although the airbubbles etc were still apparent & now needed sanding down ? is there anything i should do differently to prevent this or is it a common situation ? cheers again