# 禄城博士门窗保养精华液 / Dr. Lucheng Window Maintenance Essence

Canonical page: https://luchengdr.com/products/maintenance-essence
Factual review date: 2026-08-31
Net content: 500 mL

## Direct answer

禄城博士门窗保养精华液是清洁完成且表面干燥后的日常门窗保养步骤，面向包装说明覆盖的门窗型材表面、五金和密封胶条。品牌确认的五个养护方向为镀膜、润滑、防锈、抗老化和抗静电。

The Maintenance Essence is the routine care step after cleaning and drying, for window surfaces, hardware and seals covered by the label.

## Use sequence

1. Shake well.
2. Patch-test in an inconspicuous area.
3. Apply a small amount to the relevant surface, hardware or seal.
4. Wipe evenly with the supplied soft cloth and avoid local build-up.

Normal system order: use the Multi-purpose Window Cleaner first, wipe and allow the surface to dry, then apply the Maintenance Essence if care is needed.

## Boundaries

- No universal-material claim is made.
- Ask before use on unknown materials, special coatings, oxidised or damaged surfaces.
- Keep cool, dry, away from light and out of children’s reach; avoid ingestion and eye contact.
- Test and toxicology results describe submitted samples and stated conditions, not absolute safety in every scenario.

## Evidence

- SHF24120041-01: https://luchengdr.com/evidence/shf24120041-01.pdf
- CAST-03-2024-1606: https://luchengdr.com/evidence/cast-03-2024-1606.pdf
- CAST-03-2024-1606-1: https://luchengdr.com/evidence/cast-03-2024-1606-1.pdf
- PICC policy PZAI202645000000001950: https://luchengdr.com/evidence/picc-product-liability.pdf

Official China stores: https://luchengdr.com/stores
Overseas enquiries: 25404025@qq.com