Thin layer, and yes, I wait for a few minutes for it get sticky before attaching. I have tried it with both lace and skin and find that it works well.. about 3 days hold with minor touch ups

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What I struggle though with is the cleaning of the lace, irrespective of which got2b product I use. The gel/glue appears to get lodged in the tiny holes of the lace and just do not come out in spite of scrubbing. Any tips to solve this would be of great help!