What happened if spray shellac over lacquer

andy2 · 8th January 2007, 12:18 AM

I've been using lacquer for all my speakers projects so far but they have a smell that although it has been months, the smell has not gone away completely. On the other hand, shellac has no smell.

So I am planning to re-sand the speakers and spray them with shellac. Will this work?

lndm · 8th January 2007, 12:42 AM

The shellac is meant to soak into the timber so if you remove all of the lacquer you should be okay.

andy2 · 8th January 2007, 04:08 AM

I am afraid I won't be able to remove all the lacquer. I can sand out the existing layer of lacquer but i don't think I'll be able to remove the lacquer out completely. What would happen if the shellac will interact with the remaining layer of lacquer?

lndm · 8th January 2007, 04:43 AM

Shellac is not a coating like lacquer is, it behaves more like an oil. It is actually bug excrement.

Perhaps what you need for this job, if the surface is good, is some other kind of varnish or polyurethane to go on top. If you want some colour, there are pre-coloured varnishes available though I don't like using them unless I have no choice.

8th January 2007, 12:18 AM	#1
andy2 diyAudio Member Join Date: Nov 2004 Location: Los Angeles	What happened if spray shellac over lacquer I've been using lacquer for all my speakers projects so far but they have a smell that although it has been months, the smell has not gone away completely. On the other hand, shellac has no smell. So I am planning to re-sand the speakers and spray them with shellac. Will this work?

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8th January 2007, 12:42 AM	#2
lndm diyAudio Member Join Date: Mar 2006 Location: nsw	The shellac is meant to soak into the timber so if you remove all of the lacquer you should be okay.

8th January 2007, 04:08 AM	#3
andy2 diyAudio Member Join Date: Nov 2004 Location: Los Angeles	I am afraid I won't be able to remove all the lacquer. I can sand out the existing layer of lacquer but i don't think I'll be able to remove the lacquer out completely. What would happen if the shellac will interact with the remaining layer of lacquer?

8th January 2007, 04:43 AM	#4
lndm diyAudio Member Join Date: Mar 2006 Location: nsw	Shellac is not a coating like lacquer is, it behaves more like an oil. It is actually bug excrement. Perhaps what you need for this job, if the surface is good, is some other kind of varnish or polyurethane to go on top. If you want some colour, there are pre-coloured varnishes available though I don't like using them unless I have no choice.

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