Piano technology

Types Of Glue To Use

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torrese

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Opening post by torrese

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Dear Pianoexpert, could you please help me? I am looking for glues that are easily available on the market, such as those most suitable for gluing wood to skins, cashmere, felt, or wood to wood, so that as a novice I could timidly approach small maintenance interventions should they ever arise (but nothing serious); it is just my curiosity; furthermore, what products can be easily found to restore shine to an old piece of furniture?

THANK YOU and GOOD WORK

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saverio

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Reply 2 by pianoexpert

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Hot glue in bead form is certainly the best. Not so much for its strength, but because it absorbs and releases moisture just like wood. That is why it was used extensively by cabinetmakers. We have antique furniture with joints still intact!!!!!! Furthermore, it can be unglued with steam and resists stress with good elasticity. Naturally, cold aliphatic glues have well replaced hot ones with more practical procedures... but in my opinion, they are not the same thing. However, you must know how to use hot glue. There is a preparation procedure that would take a long time to explain now. One important thing in preparation is not to exceed a temperature of 60-70 degrees for the water bath. If the hot glue starts to boil, it loses its "strength".

Regarding the furniture, one must see if the polish is polyester, nitrocellulose, or shellac. There is little to be done for shellac. For nitro, just use polish. Polyester is similar to glass. Anyway, restoring the luster of "French polish" shellac is becoming almost impossible.....who even does it anymore!!!??? Regardless, I have not gone into depth on these techniques, which are the responsibility of the furniture restorer. Bye

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Reply 4 by pianoexpert

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It can be preserved, but when rehydrated it loses strength. A small amount can be used at a time. If they are soaked in a little cold water the night before, the pearls absorb water and become soft. When placed in heat, a few at a time, they dissolve immediately

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