Mr. Cornwall's Super-Duper Everlasting Oil 9 Ounce Glass Jar

In this review of Mr. Cornwall's Super-Duper Everlasting Oil (SDO) the bottom line is clear: this is a versatile, food safe finishing oil aimed at woodworkers and DIYers who need a penetrating, durable finish that does not form a brittle film. The reviewer found it most valuable for projects that require a natural look combined with strength - from countertops and cutting boards to outdoor brightwork - because SDO penetrates and molecularly bonds to surfaces, cures hard yet remains flexible, and is free from petroleum solvents and added driers.

Key Features

• Multi-surface use: SDO works on wood, metal, leather, concrete, stone, plastic and vinyl, which makes it useful across furniture, decking and craft projects.
• Food safe formulation: The oil is food safe and non toxic, so it is suitable for cutting boards, bowls and other items that contact food.
• Thin, penetrating finish: Its danish-like thinner formulation penetrates and cross links instead of sitting on the surface, producing a durable, non-peeling finish.
• Compatible with pigments: It pairs with Mr. Cornwall's Creative Colors so pigments can be mixed into the oil to create simple stains.
• Durable and flexible cure: SDO cures fast and hard while remaining flexible, preventing flaking, cracking and white scratch marks over time.
• Works over other Odies finishes: When used over Universal Oil or Wood Butter as a topcoat it can increase sheen and improve protection.

Who It's For

This oil is best for professional and amateur woodworkers who want an all-natural, food safe finish that penetrates and reinforces wood without forming a plastic film. It is also a good choice for anyone finishing countertops, cutting boards, outdoor brightwork, furniture, or even non-wood surfaces like concrete and leather.

Those who should look elsewhere include buyers seeking a high-gloss, film-forming polyurethane or a quick-touch-up spray finish; SDO is designed to integrate with the substrate rather than sit on top, so it will not produce a thick glossy film in the way some lacquers do.

Pros & Cons

Pros

• Penetrates and bonds molecularly for long-lasting protection that does not peel or flake.
• Food safe and free from petroleum solvents and added driers, suitable for kitchenware and toys.
• Very versatile across materials and compatible with pigments for custom stains.
• When used as a topcoat it can increase sheen and improve the look over other Odies finishes.

Cons

• Perceived as expensive by some customers, which may be a consideration for large projects.
• Thinner, natural look may not satisfy users who want a thick film or very high gloss finish.

Specifications

Product	Mr. Cornwall's Super-Duper Everlasting Oil
Size	9 ounce glass jar
Finish type	Penetrating oil, danish-like look
Safety	Food safe, non toxic, no petroleum solvents
Compatibility	Wood, metal, leather, concrete, plastic, vinyl, stone
Use cases	Interior and exterior: furniture, countertops, decks, brightwork, bowls

Our Verdict

Mr. Cornwall's Super-Duper Everlasting Oil is a strong choice for anyone who needs a natural, penetrating finish that combines food safety with durability and broad material compatibility. It is worth the price for projects where a non-peeling, long-lasting finish and the ability to tint with Creative Colors matter most; those wanting a thick gloss film should consider alternative finishes.

Frequently Asked Questions

Can it be used on cutting boards?
Yes. The oil is food safe and suitable for cutting boards, bowls and utensils after proper curing.

Will it peel or crack over time?
No. SDO penetrates and cross links with the substrate so it cures hard yet remains flexible and resists peeling, flaking and cracking.

Can I tint it with pigments?
Yes. It is designed to work with Mr. Cornwall's Creative Colors where pigments are mixed directly into the oil.