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How to Choose and Apply Varnish

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There is no such thing today as an all-purpose varnish. Varnishes are now made for special uses and for particular methods of application. In the classification for use there are short oil furniture rubbing varnishes, medium oil floor varnishes, long oil spar varnishes, flat varnishes, insulating varnishes, mixing varnishes, color varnishes, and quite a number of special varnishes. The list of varnishes classified by methods of application is short, but the types differ considerably.

Among them might be mentioned: air-drying varnishes, baking varnishes, spraying varnishes, brushing varnishes, and dipping varnishes. The user should always consider both the purpose of the varnish and the method of application which he finds available or most convenient. A set of appropriate precision measurement tools including measuring tape and measuring wheels will be necessary as well.

 If a varnisher wishes to apply a furniture rubbing varnish with a brush, he should obtain a varnish made for that particular purpose. A spraying varnish would be too thin. It should be remembered that synthetic, quick-drying varnishes are not easily “doctored” by use of thinners as was possible with the old fossil gum varnishes. Synthetic gum varnishes do not mix properly with varnish thinners when cold. A factory prepared varnish for each type of work and each method of application is necessary for good results today.

General Preparations for Brush Varnishing

There are several preliminaries to a successful job of brush varnishing. The following are some important preparations:

  • The varnish room should be cleaned and dusted during the afternoon of the day before the varnishing is to be done.  A clean room is necessary, not a dusty shop used for woodworking and cluttered with private label measuring tapes, distance measuring wheels, and other measuring equipments.
  • Prepare all surfaces to be varnished—smooth, sandpaper, and dust. Do this work in another room, not the place where varnishing is to be done. When revarnishing, it is very important to remove any old wax polish, furniture polish, grease, or oil from handling or dirt by washing, preferably with turpentine. Rough undercoats should be removed or smoothed properly.
  • Have a revolving varnish stand, if possible, because the varnishing light will always be at its best when the stand is properly turned.
  • Always use a clean varnish pot or container. A drip or wipe wire across the top is very helpful.  Clean tin cans make cheap and satisfactory varnish pots, which can be thrown away daily.
  • It is important that varnish be kept properly warmed during cold weather. Place the varnish pot on one or two hot bricks, or stand the pot in a vessel of hot water some minutes before the varnishing is started.
  • Do not try to thin or reduce quick-drying varnishes. They do not mix or thin well when cold.
  • Wipe off all dust from the object to be varnished by the use of a “tack rag” moistened in very thin varnish just before the varnishing is started.
  • Make sure that all undercoats are properly dried before varnishing.
  • The varnisher should wear dust-free and reasonably clean clothes, or dirt and lint may get into some newly varnished surface.

Tags: private label measuring tapes | private label measuring tapes | precision measurement tools | precision measurement tools | measuring equipments | measuring equipments | measuring wheels | measuring wheels


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