Sunday 3 March 2013

Problems with French polishing



Thank you for your enquiry, this sounds like a difficult one, however, I shall try and answer it for you!
You say you have “Grabbing of the rubber on the surface” Well this sounds to me like your polish is far too thick, you should and I would suggest, that you thin the polish from what I assume is purchased French polish by 25% with Methylated spirits, as this will help the French polish to flow through the rag more evenly.

Or perhaps you have thinned your French polish out too much? Which is causing the surface to melt the French polish on which you are trying to apply?

Another cause could be that you are not using linseed oil? I have tried other oils and I always come back to Linseed oil as this gives me the best result.

You say that you have “Changed your rag etc.” And I hope you are using wadding inside?
Another point is always to use the best quality white sheeting you can buy as this will give you a superior finish.

When you polish you should be able to see the width of the rubber showing in the oil streaks as you build up the finish, if you are not seeing these oil trails as you use your rubber then you are not using enough oil.

Or it could be that you are applying too much pressure whilst French polishing?  This is another cause for the dragging effect.

French polishing must be carried out in a warm environment this is not always possible here in the UK as we have such cold days and like my workshop, it is often freezing cold and therefore very difficult to French polish in.

How to remedy this well you will need to have adequate heating throughout all the polishing stages and then continue to keep the furniture warm whilst it is drying especially overnight in a cold damp climate like England.

I am not sure as to how much experience you have as a French polisher?  These problems arise once in a while and can drive us mad as I know only too well.

Make a brand new rubber from scratch using new cotton wool and the best white rag you can get hold of nylon is useless for French polishing.

Always store your rubber in an airtight container when not in use, I would suggest that you change the white rag on your rubber more frequently, as the surface becomes clogged and over oiled and this stops the French polish from passing through the rag and onto the surface, and therefore a poorly finished surface is all you will be left with.

My last thoughts on this topic are that you could have purchased a bad batch of French polish?  Check to see if the manufacturers have had any problems or complaints from other French polishers? Or you may have kept your polish for far too long?  And as a result, the mixture has become useless.

I hope I Have answered all of your questions?  And that I have been of some help to you?
Thank you for taking the time to read my Blogs I really appreciate it.
Regards, Andrew.  Feedback is most welcome!