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Can I Apply Lacquer or Polyurethane Over an Oil Finish?

Can I Apply Lacquer or Polyurethane Over an Oil Finish?

The short answer is “Yes, if it’s the right oil, and you let it dry first.” Here’s a detailed answer for those interested.  There are two general classes of oils. Drying Oils, and Non Drying Oils.  A Drying Oil is one that will harden to form a solid film after exposure to the air over time. The oil hardens through a chemical reaction called cross-linking, or polymerization by intaking oxygen.  So in actuality they “cure” rather than dry. Just like a polyurethane.  Some examples of drying oils include tung oil, linseed oil, and walnut oil.  Note: Danish oil is not an...

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DeWalt vs. Bosch Sliding Compound Miter Saws

DeWalt vs. Bosch Sliding Compound Miter Saws

I get asked this almost every other day in an email; which Miter Saw do I like Better? The DeWalt I first had, or the Bosch that I have now.   I’d like to start by saying, that I am not now, nor have I ever been sponsored by any saw manufacturer. I bought both of them with my own money, and the review & comparison is completely honest.  I have been a DeWalt fan since Stanley Black & Decker first bought the name from the DeWalt Radial Arm Saw company and made their first contractor grade yellow tools. It’s been...

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BALTIC BIRCH PLYWOOD: What is it? Why is it better?

BALTIC BIRCH PLYWOOD: What is it? Why is it better?

Article: Baltic Birch Plywood is a plywood built using a specific method. It comes from Russia and the nearby Baltic states. Baltic Birch plywood is generally regarded as being of higher quality than standard birch plywood. It is made entirely from birch plies, and unlike regular plywood it has no softwood or filler plies in the center. Also the plies themselves are thinner, allowing for more plies for a given thickness and they are a uniform 1.5mm thick. This gives it much greater stiffness and stability. Additionally the outer ply (face veneer) is also 1.5mm thick. Which is about double...

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Polyurethane, Lacquer, Shellac, or Varnish? What do I use? What’s the difference?

finish lacquer polyurethane shellac top coat varnish

Polyurethane, Lacquer, Shellac, or Varnish? What do I use? What’s the difference?

Article: Your woodworking project is done. And maybe you’ve stained it too. Now you need to protect it with a topcoat. What do you choose? Maybe this information guide can help you... from; James KingKing’s Fine WoodworkingHighlights: What are you looking for?Fastest Drying Time:Lacquer - 30 min(Shellac - 1 hourWaterborne polyurethane - 2 hrsStandard Polyurethane - 24 hours)Best for Crystal Clear Finish:LacquerWaterborne polyurethane - close second place. Easiest to Apply:Wipe on polyurethane Spray on poly from a canSpray lacquer from a can-All three are easy optionsEasiest to Repair:Lacquer -Spraying on another coat partially dissolved the coat underneath, leading to perfect...

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How To Make Purpleheart Very Purple

Oxidation purpleheart

How To Make Purpleheart Very Purple

Article: The coloring comes variety of organic compounds called conjugated dienes, that reflect visible light in both the high and low end range of the visible spectrum (from 400-700nm). Some of which have solubility in polar protic compounds like water, others of which are only soluble in organic solvents. That’s where the magic of acetone comes in. It is highly polar, but it is non-protic, therefore it dissolves them all. And by dissolving them, they work their way to the surface and bring all of their bright beautiful purple color with them. The ultraviolet rays from the sun then do...

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