When selecting oil to coat a granite base, the core principles are “protection firs, no damage, easy cleaning.” Selection must consider the base’s purpose (precision measurement/ordinary tooling) and transportation environment (humid/dry), focusing on avoiding corrosion, residuees affecting subsequent use. Specific selection methods and recommendations are as follows:
I. Core Oil Selection Standards (Must Read)
- Non-corrosive: Strictly prohibit oils containinids, alkalis, or organic solvents (e.g., gasoline, diesel, industrial strong acid/alkali rust preventive oils). Avoid corroding the granite surface, which can causs of luster, spotting, or precision damage (especially for precision-grade granite bases).
- Easy to clean: The protective oil must be completely removable via simple wiping (with neutral cleaner)g no residue or stickiness, and not affecting the subsequent fit and levelness between the granite base and the stand.
- Adequate protection: Capable of forming a uniform, denstective film to effectively isolate air and moisture, preventing oxidation, rust spots (targeting trace metal minerals in granite), and surface dampness during transportation.
- No residual contamination: il film does not become sticky or attract dust after drying, avoiding dust being trapped in the film during subsequent installation, which could affect base precision or stand connection stability.
II. RecommenOils and Applicable Scenarios (Ranked by Priority)
- Dedicated Granite Protective Oil (First Choice)
Specifically designed for granite, marble, and other stones; the most compatible chodivided into two types:
- Stone-specific rust preventive protective oil: Lightweight texture, quick film formation, strong protection, non-corrosive. Can be applied directly, suitable for s of granite bases (especially Grade 00, Grade 0 precision measurement bases). Maximizes protection of surface precision and luster; easily wiped off with neutral cleaner afterward.
- Stonentenance oil (Auxiliary protection): Slightly thicker texture, suitable for humid transportation environments (e.g., rainy seasons, coastal areas). Offers superior moisture-proofing, but haghtly longer drying time. Requires 1-2 extra wipes to avoid residue.
- Industrial White Oil (Second Choice, High Cost-Effectiveness)
Also known as liqid paraffin, meeting food-grade/industrial-grade standards (industrial grade is sufficient). Features:
- Non-corrosive, odorless, chemically stable, does not react wnite. Effectively isolates moisture and air, providing basic rust and moisture protection.
- Lightweight texture, easy to wipe, no residue. Suitable for ordinary tooling granite bases (ncision grade). High cost-effectiveness and easy to procure.
- Note: Must select industrial white oil with purity ≥99%. Avoid low-quality white oil with impurities to prevent resal stains.
- Sewing Machine Oil (Emergency Alternative)
Only suitable for temporary emergency use (when dedicated oil or white oil is unavailable). Must meet two conditions: ① Select ality sewing machine oil (no impurities, no odor); ② Dilute when applying (add a small amount of diesel at a 1:1 ratio) to avoid excessive thicksing residue.
Disadvantages: Average protection, may feel slightly sticky after drying, requires more careful wiping afterward. Not recommended for long-term use or precision-grade granite ba.
III. Strictly Prohibited Oils (Key Pitfalls to Avoid)
- Oils containing acids, alkalis, or organic solvech as diesel, gasoline, kerosene, rust removers, and engine oil (general mechanical oil). These will corrode the granite surface, causing loss of luster, sng, and even affecting precision.
- Extremely viscous oils: Such as lubricating grease and butter. These are difficult to wipe off, prone to residue and dust adhesion. Subsequent insta will affect the fit between the base and the bracket, and may also contaminate surrounding equipment.
- Colored oils: Such as red or yellow rust preventive oils. Thell seep into the seams of the granite, leaving stains that are difficult to remove, affecting appearance and subsequent use.
IV. Additional Usage Precautions
- Application Amount: Follow the principle of “thin and even.” Use a clean cloth dipped in a small amount of oil to gently wipe the granite base surface; avoid thick application (thick application leads to residd stickiness).
- Application Timing: Apply 1-2 days before shipment. Allow the oil film to dry preliminarily (until it is no longer sticky to the touch) befoe packaging, to avoid the packaging material sticking to the oil film.
- Subsequent Handling: After the base arrives, use a clean cloth dipped in a neutral cleaner (such as a dishwashing liquid) to thoroughly wipe the surface. Dry it before installation to avoid the oil film affecting the fit.
