FamilyWiggs
Member
- Messages
- 3,452
- Location
- Flintshire, N Wales.
Festive felicitations to all.
Now the family have gone after Christmas, I've been thinking how to remove the mortar from the slate flags. Although I was careful when laying/grouting, there are a couple that need good cleaning before I can oil them.
I done the usual elbow grease and fake-metal pan scourers approach, but there are resistant patches.
The mortar is mostly lime but there is a little bit of cement in there too.
Would brick acid be a good bet, or will it do something to the slate?
Now the family have gone after Christmas, I've been thinking how to remove the mortar from the slate flags. Although I was careful when laying/grouting, there are a couple that need good cleaning before I can oil them.
I done the usual elbow grease and fake-metal pan scourers approach, but there are resistant patches.
The mortar is mostly lime but there is a little bit of cement in there too.
Would brick acid be a good bet, or will it do something to the slate?