no, you probably shouldn’t. And here’s why: You are better off sanding off the poly coat before you start wood burning. Burning polyurethane fumes smell really bad (and that scent can potentially linger on the wood afterwards).
Is it OK to burn stained wood?
Never burn painted, stained, or treated wood or manufactured wood such as plywood and particle board. Chemicals in ‘salt treated’ wood, paint, or stains can produce toxic fumes when burned. … If you want some areas of wood to remain lighter, just avoid them as you stain.
What happens if you burn stained wood?
When you burn coated or pressure-treated wood, toxic chemicals can be released into the air you breathe. For example, wood treated to withstand rot or insects used to contain a form of arsenic, while painted, stained, or varnished woods contain other chemicals—and all these chemicals create toxic fumes when burned.
Can you torch already stained wood?
You can of course work around the problem, strip the stain, plane or sand off the surface, whatever is necessary so you’re back to bare wood and then use the blowtorch.
Can you do wood burning on varnished wood?
I wouldn’t recommend it. The varnish isn’t going to light on fire or anything, but the fumes are pretty toxic. If you decide to try it, wear a respirator.
Should you burn wood before or after staining?
DO NOT STAIN FIRST. You will only get a nose full of toxic fumes when you burn it. Sand first, burn your design, stain (with a lighter stain to retain the contrast), polyurathaine one coat, lightly sand, polyurathaine again, allow to dry for 72 hours to get rid of the smell.
Is it bad to burn cardboard in a wood stove?
These materials are often treated with wax, plastic, ink, paint, and other materials which can release toxic fumes when burned. Even untreated cardboard can be a potential danger in your home due to its ability to burn fast and hot. This can cause large, high flames which can cause damage.
Is it OK to burn stained cedar?
Don’t burn painted, stained, creosote treated wood or wood that has been pressure treated with preservatives (these usually tint the wood green or brown). Despite some people’s enjoyment of “that nice woodsy smell” when wood is burned in a fireplace, you should never smell wood smoke in your house when the fire is on.
Do you have to seal wood after burning?
If you are wood burning, simply sand the surface lightly and transfer your pattern onto the surface. After the wood burning is complete, seal the wood. Wood preparation is important for your project. Unless you are covering your surface with fabric or paper, you will need to seal the wood with a wood sealer.
Can you burn wood that has polyurethane?
Do polyurethane products produce a unique toxicity risk in fires? No. While a range of airborne chemicals may be emitted during fire events involving polyurethane products, all combustible materials produce toxic smoke when burned, including wood.