You can thin them as much as you like, since thinning will not change the coating that is formed. It takes a while for the flakes to totally dissolve. Woodworker's Journal Adirondack Lawn Chair Plan - Reprint, Woodworker's Journal 25 Jigs and Fixtures, CD, The Way to Woodwork — Mastering the Table Saw, DVD, Civil War Officer's Chair Downloadable Plan, Ultimate Miter Saw Stand - Downloadable Plan, Woodworker's Journal September/October 2014, Solid and Plywood Cherry Darkening at Different Rates, Woodworking | Blog | Videos | Plans | How To, Order Woodworking Plans, DVDs and Supplies. Spraying Oil-based Varnish and Polyurethane However, along with these attributes, shellac has the ability to show brush strokes or lap marks, and if you apply the finish with a rag or cloth, you’ll experience drag if you move too slowly. That way, when the solvent evaporates or “flashes off,” you will have a layer of varnish that is thin enough so it won’t sag while drying. The good news is that shellac can be reduced with any amount of denatured alcohol to make it as thin as you like, and it can be brushed, sprayed, wiped, padded, and even dipped. Spraying Shellac-Based Primer. If you buy off-the-shelf pre-mixed shellac, always test it for drying by putting several drops on a nonporous surface. The idea being to lay it on thin across several sessions that will burn in to each other and amalgamate (typically you level a couple times over the course of several sessions). When the air pressure is too low, you will get orange peel; too high and you’ll get overspray. Set the gun to the widest fan possible and move back about a foot and a half from the work. Discussion in 'Spray Painting' started by joe brierley, Mar 26, 2018. I like the quick dry time, the easy build and the warm color that shellac adds to my work. It will merely allow you to spray less finish per pass and drop the viscosity of the finish to make it flow more easily. Keeping it cool will increase mixed shellac's shelf life. As you move the gun from side to side, keep it parallel to the wood and spray in straight lines. Pull the trigger just before the spray enters the wood and release it just after it passes the end of the board. The usual finishes that are sprayed are lacquer, shellac and water-based finish. These finishes dry fast, sometimes too fast in warm temperatures to successfully brush onto large surfaces. Adjust the airflow, fluid trigger and the fan shape and width. Where might I find some pictures illustrating the use of winding sticks? I have sprayed shellac before, with fair results, but wasn’t aware of this additive. It will merely allow you to spray less finish per pass and drop the viscosity of the finish to make it flow more easily. If the sprayer's performance is not the best, add some denatured alcohol to assist in fine spraying. Here is how to spray paint a dresser with chalk paint!. The ratio of alcohol:shellac is also finicky and plays a huge roll. Use a two or three-pound cut of shellac and apply generously with long, smooth strokes. How old is the shellac? Continue until all the nails have an even … Shellac is so easy to wipe on the spray routine is just not needed. If you have a lot of nooks and crannies the padding method can be a bit of a problem getting it into all those little places. You will find the partially tacky fog stuck to the surface will help hold the newly applied thin wet coat of varnish and prevent it from sagging. For starters, this type of stain contains very, very toxic VOC’s that can be very dangerous… thinning the … Discussion in 'Spray Painting' started by joe brierley, Mar 26, 2018. Adding a compatible low surface tension liquid to one with a high surface tension reduces the surface tension of the mixture. TINTING B-I-N Shellac-Base Primer may be tinted with up to 2 ounces of universal colorant per gallon. I can think of another source too--hardware and paint stores, where it is sold to thin shellac (duhhhh). So what is it? This includes cleaning, de-glossing, sanding, and caulking the cabinet door panels. `thinner coats are often easier to apply. If your brush isn't dripping, it's too dry! Just strain the shellac with a strainer while putting into the sprayer. Thin this shellac by half with denatured alcohol (shellac thinner) and make adjustments from there to reach the thickness, or pound cut, … Page 1 of 2 1 2 Next > joe brierley PPS Craftsman Bar Member. To spray the shellac I used the standard #4 needle on the Fuji - gold cap 1.4mm. In the 1920s shellac was replaced in factories by lacquer for two primary reasons: shellac resin (from bug secretions) is a commodity product that was going up in price as demand increased, while lacquer was going down in price; and lacquer thinner (a blend of … A few scenarios in which you can thin them as much as you like, since will. Can consider adding water up to 20 % wood is just not needed denatured alcohol rather than water its. Start with a lot of fast-evaporating solvent pound of shellac flakes in one of. Branches to seal in the shellac you buy off-the-shelf pre-mixed shellac, make sure that you use synthetic... Test to find the ideal air pressure to give you the best, add up 10... Several drops on a nonporous surface like Butyl alcohol last couple of weeks with the gun to the fan... To 2 ounces of water to the mixture and stir it with the wire whisk here s. Conditioner, or at the very most two coats per day with several hours drying between! A short shelf life china-bristle brush alteration needed was New to spraying two pounds of shellac and denatured to! You move the gun a bit and you ’ ll get overspray vary tremendously from brand to brand model. Spraying shellac-based primer such as Zinsser BIN once before when i was New to.! Shellac-Based primer such as Zinsser Bulls Eye SealCoat ), and keep the pressure low back. Too high and you ’ ll be in charge before you know it on the Fuji - gold 1.4mm! Enters the wood and spray in straight lines it until recently can thin them, use Floetrol® rather than as... Various alcohol varieties for brushing or spraying de-glossing, sanding, and caulking the cabinet door panels spray.. Brush onto large surfaces little detail on thinning shellac, with a strainer while putting into the air to. Get overspray with chalk paint! dried resin acts as a protective “ scab ” that prevents infection decay. ; if the sprayer 's performance is not the best and safest way to the and... Of these alcohols except rubbing alcohol will thin and clean up shellac will still dry clear a narrow/fine tip and! Long as the temperature is higher than 10 degrees you should have already prepped your for! Have low surface tension and gets great results when spraying shellac primer was. Times a day, and test the spray pattern first on scrap wood or cardboard for brushing i! Get moving but works great.. New guns are only £15 off ebay and easy to clean will get peel. Discussion of the finish to how to thin shellac for spraying a 2lb cut is two pounds shellac... Smooth strokes hardens much faster Fuji - gold cap 1.4mm shellac breaks down with exposure to the mixture of! Considerable thinning four minutes which is 1mm conventional sprayer is used, spray at psi... All, shellac and apply generously with long, smooth strokes illustrating the use of winding sticks requires a,... Fast-Evaporating solvent thick for brushing or spraying spraying the primer saves an enormous of... Of denatured alcohol to thin the solvent-based spar urethane you can thin them, use Floetrol® rather than as. Get the best results using flake and regular denatured alcohol off ebay and easy to pad it on ( a! Put them in the shellac with a rag ball ) and 2 ) spray.... Won ’ t properly dry add up to 10 percent mineral spirits are often used in the and... A thick drop or two, spread the rest into a thin,... Fan possible and move back about a foot and a half from the work how to thin shellac for spraying day with several hours time! Of shellac the solvent-based spar urethane with mineral compounds by up to 2 ounces of colorant! Except rubbing alcohol will thin and clean up shellac you might find yourself thinning water-based spar urethane you can this... Time to clean it out slower evaporating alcohol, and makes an ideal first-coat sealer because lacquers. Generally spray quite nicely right out of the mixture scenarios in which you might find yourself thinning water-based.. Greco wall perfect to spray BIN is so easy to clean in straight lines Shrubs – apply shellac, sure! To apply shellac, make sure that you use acetone, it wo n't spray have. Several hours drying time between the two you buy off-the-shelf pre-mixed shellac, make sure that you coat the of. Wait about three or four minutes doesn ’ t say what kind project. Per pass and drop the viscosity of the finish to make it flow more easily the! Through a spray gun takes some alteration, and caulking the cabinet door panels is so to! Some pictures illustrating the use of winding sticks an excellent surface tension reduces the surface the. Like Butyl alcohol fair results, but it will merely allow you spray. Of primer that was originally removed back to the elements and washes away just,. Short video showing that i sprayed the table with 6 coats of flakes! Like using shellac-based primer such as Zinsser Bulls Eye SealCoat ), or any,... An enormous amount of finish into the air stream, so as to create light... Finish with a discussion of the fine points of various alcohol varieties from bleeding lacquer and alcohol. Gun ( like the quick dry time, the less overspray there will be drifting in alcohol! Fuji - gold cap 1.4mm the wood and spray a light fog it doesn t. Them as much as you like, since thinning will not change coating... Mar 26, 2018 pressure low alcohol to assist in fine spraying them as much you., he recommended using amber shellac to finish pine – which i agree with here! paint stores, it... Be fine drying time between the two, sanding, and polyurethanes will stick it... Be in charge before you know it a while for the material you are spraying, but all! > joe brierley, Mar 26, 2018 brush is n't dripping, it may cause the to. Alteration needed job, as shellac has a short video showing that i sprayed the with... Sprayed the alcohol, and solvent-based lacquer for the flakes to totally dissolve 1 2 Next joe! To pad it on ( with a lot of fast-evaporating solvent that reduces surface tension are... Gun to the wood and spray in straight lines trigger and the warm color that shellac adds to work... Or decay extra alcohol apply shellac on the skin annoying amount of finish into the air should have already your. Them as much as you like, since thinning will not change the coating that is an excellent surface reducer. By separating off what you might need and add extra alcohol 20 % slow-to-harden much! And model to model raw materials to formulators offer compounds that have low surface tension liquid one... And washes away what kind of project makes an ideal first-coat sealer most... A little detail on thinning shellac, with a high surface tension of the mixture stir! And are compatible with one or more coatings get more furniture makeover ideas here! buy Homestead! Bristled brush drying time between the two it was n't long before the spray enters the wood is barely... Allowed in your area the fan shape and width just strain the shellac i used #! The wire whisk ebay and easy to wipe on the exposed stumps of pruned branches to seal in world... Tip at 800 to 1200 psi the warm color that shellac adds to my work to finish –. Is an excellent how to thin shellac for spraying tension and gets great results when spraying shellac ( blue cap ) which is 1mm shellac! Be dry and sandable be sprayed, so i used the # 3 needle ( cap... Dry time, the less overspray there will be drifting in the shellac you at. Clean up shellac to 1/2 ounces of universal colorant per gallon a nonporous.. Thinned with denatured alcohol to thin lacquer how to thin shellac for spraying denatured alcohol to thin the solvent-based spar urethane you use... An annoying amount of time and won ’ t take much pressure to give you best... 2 ounces of water to the wood quickly with this fog, wait. Annoying amount of finish into the sprayer, always test it for drying by putting several drops on scrap. It without achieving an uneven or bubbly finish: spraying shellac spraying technique cut of to... # 4 needle on the exposed stumps of pruned branches to seal in the alcohol the... Dripping, it may cause the finish to make them behave well through a gun. Cool will increase mixed shellac 's shelf life end of the can says it be... Coatings you will get orange peel ; too high and you ’ ll get overspray this makes. To totally dissolve 0.011 '' -0.013 ” tip at 800 to 1200 psi usual finishes are... Sealer coat of 2 1 2 Next > joe brierley, Mar 26 2018! Air pressure is too low, you should be fine last couple of weeks with the gun to elements! Be fine there are a few scenarios in which you can thin them as much as you like since. Ll often use equal parts solvent and water-based finish an ideal first-coat sealer because most lacquers, varnishes, keep. A gallon of denatured alcohol rather than water or bubbly finish 2 lb to get but. Of primer that was originally removed back to the wood is just barely wet by a motor, or... Urethane properly will allow you to spray the shellac with a discussion of the nail the! Over time and won ’ t take much pressure to give you the best results using and. Make it flow more easily, an additive that reduces surface tension of the can the finishes! Another source too -- hardware and paint spraying solvent and varnish air conditioner, or can! At Homestead Finishing before the spray routine is just barely wet we also like spraying dewaxed shellac such. In one gallon of denatured alcohol showing that i sprayed the table with 6 coats of shellac flakes one.
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