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Seal It Green
Zero VOC Oil Based Wood Sealers
Pure Tung Oil Advantages:
- Zero VOC’s
- All Natural means “Green”
- Best Available, Grade 1 yellow
- Cures by oxidation not evaporation
- Does not form a glossy finish no matter the number of coats
- Forms a flexible water proof finish
- Brings Out the beauty in the wood
- Resists abrasion and acids
- Does not blister and peel (if properly applied)
- Does not mold like linseed oil
- Does not darken with time like linseed oil
- Concentrated (thin one to one, doubles the coverage)
- Combined with “Citrus Solvent” makes an all-natural finish
- FDA approved for food contact
Properties and Characteristics:
- A Pure Tung Oil all natural finish is water and alkali resistant offering a protective barrier. A Pure Tung Oil finish will not darken with age as other finishes will. It resists marring, penetrates well, elastic and unlikely to check. Tung oil builds quickly, consolidates the wood surface and builds a transparent matte finish. Pure Tung Oil finish will not mildew or bleed like linseed oil when dry which makes it an excellent candidate for outdoor finishes. It should be kept in an airtight container with minimum air space. Pure Tung Oil contains no thinners or driers and has a light nutty odor. A Pure Tung Oil finish mixed with Citrus Solvent Low VOC wood sealer is an all-natural organic finish that is environmentally safe and food safe.
The surface should be dusted to remove all loose particles. For better penetration the oil should be thinned one to one with Citrus Solvent (Low VOC wood sealer) . Any filling or staining (water or alcohol stains work best) must be done before the oil is applied. The first coat of thinned material should be a liberal one. Apply with a natural bristle brush or sponge brush. Allow this application to sit for 40 minutes so the oil can soak in. If it completely soaks into the wood, apply another coat. Continue to apply coats until wood is saturated and stays glossy for a minimum of 40 minutes but can be 1 ½ hours. If eighty percent of area stays glossy the wood cells are saturated. Then wipe down the surface with clean rag material. Continue to check for any seeping in the next few hours, and rub this off as well. Let soak in completely over night between applications. Do not allow standing oil on the surface overnight. Any standing or puddles oil should be wiped away with clean rags. For woods with very dense pores, thin with two parts Citrus Solvent (Low VOC wood sealer) to one part oil will help it absorb better for every coat. Pure Tung Oil will take 7 to 10 days for a minimum cure and 15 to 30 days for a full cure.
Tung oil can be applied pure or with Citrus Solvent Low VOC wood sealer added if a non-toxic finish is required. Thinners can accelerate the drying process and greatly improve the penetration by cutting the first coat of oil with Citrus Solvent, mineral spirits or turpentine by 50%. Remember by adding mineral spirits or turpentine, Pure Tung Oil becomes toxic with these substances mixed into it, although the finish produced is not toxic because the thinners evaporate.
The number of coats of oil to be applied will be determined by the intended use of the piece. Two to four coats are enough for decorative work, paneling and molding. Surfaces that receive moderate to heavy use or handling could need up to six coats for maximum protection, plus a light renewal coats a couple of times a year. Apply till the surface reaches the saturation point. This will be evident as the surface will not absorb more oil. Renewal and building coats are quickly applied with cheese cloth, a lint free cloth or old nylon stockings. This process will give you a surface that will stand up to vigorous use and spills: water will bead on the surface. Do not get hung up on the number of coats, let the wood tell you when it has reached its maximum saturation.
Pure Tung Oil is recommended for wood finishing of kitchen tables, chopping blocks, wood and concrete counter tops, wood floors, concrete floors, refinishing wood floors, outdoor decks, outdoor furniture, wood siding, log homes both interior and exterior and similar uses. Its non-toxic nature makes it particularly appropriate for children’s toys and furniture. It gives good protection to wood paneling and molding.
Pure Tung Oil’s matte finish will do nicely on certain pieces of furniture, but if a glossy finish is preferred you will need to buff and wax the finish.
Pure Tung Oil should remain above freezing during and after application for a period of 10 to 15 days. If freezing temperatures do occur it is possible for the fat in the oil to rise out of the oil and deposit on the surface. The warmer the temperature the faster the oil will cure. However direct sunlight baking a surface after a “fresh” application can quickly polymerize the oil and result in a dry rubbery frosted appearance or a distinctly more glossy finish than the surrounding area.
Pure Tung Oil should be stored in moderate temperatures. Do not freeze and do not store in hot places like attics. It should also be stored out of direct sunlight like a mildly heated basement area. A mixture of Pure Tung Oil and Citrus Solvent should be stored in the “colored container keeping UV out.
FDA: Pure Tung Oil is approved for food contact by the FDA.