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For further information please contact us at: sales@shellacfinishes.biz
Shellac FAQ
What is a shellac'cut'?
The so called 'cut' of shellac is best described as the ratio of shellac flakes in relation to denatured alcohol. A 1lb 'cut', means 1lb of shellac flakes dissolved in 1 gallon of denatured alcohol. However this is a large quantity for most woodworking shops. Moreover most shops do not own a weighing scale either. Hence a smaller amount can be mixed for a 1lb cut by taking 1oz. of shellac flakes and dissolving it in 1 cup of denatured alcohol. If a 2lb cut is required, simply increase the weight of the shellac flakes to 2oz. For a 3lb cut increase the weight to 3oz and so on for heavier cuts. Since a cup holds 8 oz, divide the cup into eight equal parts for measuring 1 oz. now you don't need a weighing scale, only a cup from your kitchen.
How do I make the shellac solution?
Take a clean glass bottle with a tight fitting lid that will hold the amount of alcohol that you intend to use. Use the above measurements for the shellac flakes and alcohol depending on the cut and quantity that you want to make. Pour the shellac flakes and alcohol into the bottle and close the lid tightly. Give it a few shakes from time to time. The shellac will dissolve in a few hours. Run the solution through a paint sieve, that can be found at any paint store, to remove impurities. You are ready to apply shellac.
Are there any benefits to using pure alcohol over denatured alcohol?
Not really, except the price you pay for the alcohol!!
How is shellac applied?
Shellac can be brushed, sprayed, padded or French polished. Padding and French polishing require practice and patience. Brushing and spraying are the easiest methods. Use a good quality animal hair brush for minimizing brush streaks. For sealing insides of drawers and furniture, brushing is the best way for a quick and easy application.
How do you determine the weight of the cut for different applications?
A 2lb cut is common and used for most applications like coating of insides of drawers and furniture. For a final coat of Super Blonde over Garnet, Orange or any other variety, a 1lb cut is usually used. Shellac can also be used as grain filler for open grained woods like Oak, Mahogany etc. Use a 3lb cut mixed with a few tablespoons of fine grain Rottenstone/pumice powder to form a goopy mixture. Apply mixture liberally on the surface pressing it in with a pad or a ball of cloth. Wipe excess off. Let dry for 24 hours and wet sand lightly with Naphtha as a lubricating and cooling agent. If grains are not fully filled, repeat application. Run your finger nail across the grain. If it travels freely, it indicates that the grains are filled.
Can shellac be used as a stain?
Absolutely. As a matter of fact it is a stain and a sealer all in one. You can't ask for more! If you wish to use shellac as a stain, simply take Super Blonde, which is the clearest of all grades, and mix the required alcohol based aniline dye till the desired color is achieved. Here is an example. The drawer pulls on my tool chest are Maple but tinted as Walnut.
Can shellac be used as a sealer?
Shellac is an excellent sealer. Always apply a coat of shellac on the insides of cabinets and drawers. If the wood has been finished with any kind of oil and the odor needs to be rid off, use shellac as a sealer. Ever tried applying a coat of paint over pine wood? Over time, the sap leaches out and ruins the look. Use shellac as a sealer coat before applying paint.
Is shellac non toxic?
Yes it is non toxic and can be used on any children toys or furniture. Please keep in mind that once the alcohol evaporates, only shellac remains on the toy or furniture. Shellac is widely used in the candy, cosmetic and drug industries as a coating for finished products.
What is the shelf life of shellac?
Shellac flakes have a finite shelf life unknown to most users. Even if Shellac flakes are stored in a cool, dark and dry place, but older than 3 years, it will not dissolve in alcohol overnight when compared to fresh stock. When applied, it will be sticky and slow drying. If used for French polishing, more than the usual amount of oil will be required for lubrication.
Once dissolved in alcohol, shellac does not last more than 6 months at the most. Store mixture in a cool dark and dry area of your workshop. The ideal temperature is between 65-70 degrees F.
Always dissolve shellac as and when needed.
Are any discounts available?
Yes, if you are a member of the following organizations:
1) San Diego Fine Woodworkers Association (SDFWA)
2) North Carolina Woodoworker
3) St. Louis Woodworkers Guild
4) Palomar College, Cabinet and Furniture Technology
You are eligible for a 10% discount. Please use the coupon code that can be obtained from your association. Code is entered during checkout.
If you would like to include your organization in the above list, please send your enquiry to sales@shellacfinishes.biz
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