After the floor dried completely I applied a thin (1/4″ – 1/2″) layer of a sand/clay mix (approximately 80/20 ratio) over the entire floor to fill in cracks and provide a base to lay some saltillo tiles in the entry way. I also used the mixture as grout between the tiles. After about a week it had dried out and I entered the final phase of sealing the floor.
I applied several coats of boiled linseed oil to the earthen floor. The oil hardens upon drying making the floor more durable and reducing water absorption.
|The last layer has dried. Time to seal.|
|Applying the boiled linseed oil was pretty quick and easy. I would just pour some oil on the floor, let it soak in for a few minutes and then wipe it around with an old rag. It took less than an hour for each coat.|
|The biggest danger with boiled linseed oil is that as it hardens it generates heat. You have to be careful with disposal of rags as they could spontaneously catch fire.|
|After applying the second coat. The linseed oil darkens the earth significantly.|
|After the first coat I began cutting the boiled linseed oil with the mineral spirits thinner to promote better absorption.|