Shellac on pine..White on drying?
Welcome! / Forums / General Woodworking Discussions / Finishing / Shellac on pine..White on drying?
- This topic has 9 replies, 6 voices, and was last updated 10 years, 2 months ago by Eddy Flynn.
-
AuthorPosts
-
12 February 2014 at 12:09 am #27721
Hi, Please bare in mind I’m new to shellac and uncertain as to what to expect can you help. I’ve followed Paul’s routine closely and added a pre-mixed Liebron sanding sealer to the surface thinly and drips removed and all looks great.
On drying I was surprised to see what I can only describe as an almost bleaching effect of the wood. Is this normal and buffing out with Wire Wool simply the next stage or is there an issue?
Such as the way I have applied it, An issue with the batch or some other issue such as room or air temperature.
My workshop is unheated and cold at best but well ventilated and I couldn’t help wonder. I understand its a bit of an uneducated beginners query but would really appreciate any feedback. Thank you.Cobra,
My guess is that you’ve gotten some moisture condensation because of the low temperature. Keep in mind that as the alcohol evaporates from the surface it takes away a fair amount of heat lowering the surface temp. If the temp. dips below the dew point you’ll get the condensation, even though it may not be obvious.
Some times it will clear up upon warming. If not then apply another coat of shellac in a warm environment.
Hope this helps.
Best,
Craig12 February 2014 at 12:44 am #27723It helps an awful lot, it was bugging me but as I didn’t have experience I was hesitant to ask, I’m enjoying every moment of learning new things and look at so much so very differently now. Thank you so much for the info.
Temperature could definitely be a factor here as well as moisture. My woodwork guru told me once that my room was too cold for my shellac as I had the window open on a cold day for ventilation, and that it should be applied in a comfortable room temperature.
On another occasion I got a slightly milky finish from my shellac and I put it down to my jam jar having some moisture in it when I mixed the flakes in it. But your sealer was pre-mixed so I am not sure if the same reason would apply to you?
12 February 2014 at 9:56 am #27742RL, You have described my workshop almost to a t lol. Its an outbuilding and has a concrete roof if I heat it I get a dew point on the ceiling and it basically forms droplets and starts raining; so I leave windows open to keep the temp at one, hence its damn chilly.
Im going to re-coat shellac today indoors, will be interesting to see teh contrast will let you all know the result.
I paint and only do in the summer as its to cold in the workshop I use oils and other half has chest issues so I cant do these things indoors so in the winter I pack up my brush’s.
Oh for a lovely warm and spacious workshop where I can enjoy my art and woodworking 🙁
thanks to all for your help12 February 2014 at 10:39 am #27744Hi Cobra
I have applied shellac several times in my cold garage without any problems apart from once when it also dried white, I put it down to the fact that I had applied the Shellac over a wood stain that I think had not dried properly
Since then using same container of Liberon sanding sealer I have not had any problems12 February 2014 at 10:42 am #27745You were all absoloutly correct. Applied indoors and no issues at all, and as was suggested in the first reply, the extra coat cured all makes you realise how forgiving shellac really is.
12 February 2014 at 11:04 am #27748glad you got it resolved Cobra all you have to do now is batten out your work shop amd insulate it good luck
-
AuthorPosts
- You must be logged in to reply to this topic.