4
votes
3answers
235 views

What material to use to close a too wide wire tunnel?

During the cold days I noticed a little draft coming from the light switch next to my house door. Removing the switch revealed that the tunnel for the cables was widened to fit the cables for the ...
2
votes
1answer
239 views

How can I seal an old wood finish on a 60-year-old wall that is off-gassing?

We just moved into a 60-year-old house and most of it was recently painted with low VOC paint, although one original wall is a medium-color wood finish which is putting out a strange smell. One of us ...
0
votes
1answer
135 views

Is the permeability of normal shellac (flakes dissolved in spirits) the same as Zinsser B-I-N sealer?

I've made a whole batch of clear shellac for sealing ceiling and concrete floors in a heavily nicotine damaged apartment. But I'm worried now that there may be some differences between them, such as ...