Polymerized Tung Oil Sealer
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Applied liberally as a first coat, this sealer will penetrate deeply to close wood pores and provide a clear base that highlights grain and color.
You can fine-tune your finish to suit the job at hand in subsequent coats (brush them out more sparingly to a "dry" finish — ideally with a natural-bristle brush) by mixing the sealer with a high-luster polymerized tung oil to vary the balance of oil, thinners, and driers. A ratio of two parts sealer to one part high luster will give a low-luster finish. For medium luster, mix one part sealer to two parts high luster.
We could offer you low-luster and medium-luster pre-mixes, but it seems preferable to let you mix your own, both to save initial costs and to minimize the number of products needed for a range of finishes.
Made in USA.
The sealer is applied liberally as a first coat to close wood pores and create a base. Subsequent coats can be the high-luster polymerized tung oil on its own, or mixed with the sealer to achieve lower luster levels. A ratio of two parts sealer to one part high-luster gives a low-luster finish; one part sealer to two parts high-luster gives medium luster.
The sealer is intended as part of a tung oil finishing system, used as a base coat with subsequent coats of polymerized tung oil or a sealer/oil mixture. It is not typically used as a standalone topcoat finish.
The sealer has a lower viscosity that allows it to penetrate more deeply into open-grained wood on the first coat, closing pores more effectively than starting with the full high-luster oil. This provides a better base for subsequent coats and reduces the total number of coats needed.
No. Like the polymerized tung oil it works with, the sealer contains mineral spirits and is not approved for food-contact surfaces. For salad bowls or wooden utensils, use 100% pure tung oil instead.
Seal the wood with a liberal first coat using a rag, natural-bristle brush or steel wool. Use a natural-bristle brush with subsequent coats.
| Materials | Polymerized tung oil sealer; mineral spirits diluent |
| Color/Finish | Clear; low luster as a first coat |
| Dimensions | 250ml (8.5 oz); 500ml (17 oz); 1L (34 oz) |
| Warranty | Lee Valley Satisfaction Guarantee |
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Polymerized Tung Oil Sealer
Applied liberally as a first coat, this sealer will penetrate deeply to close wood pores and provide a clear base that highlights grain and color.
You can fine-tune your finish to suit the job at hand in subsequent coats (brush them out more sparingly to a "dry" finish — ideally with a natural-bristle brush) by mixing the sealer with a high-luster polymerized tung oil to vary the balance of oil, thinners, and driers. A ratio of two parts sealer to one part high luster will give a low-luster finish. For medium luster, mix one part sealer to two parts high luster.
We could offer you low-luster and medium-luster pre-mixes, but it seems preferable to let you mix your own, both to save initial costs and to minimize the number of products needed for a range of finishes.
Made in USA.
