Gray Sliding Windows China Manufacturer Finish Matching
When reordering gray sliding windows from a China manufacturer, approve the new sample against both the original retained sample and the windows beside the new units. A repeated color name is not a complete matching instruction. For the Rogenilan RGNL-100, identify the finish, comparison surfaces and acceptance decision before releasing the repeat order.

Gray Sliding Windows: Define What Must Match
The RGNL-100 Series Sliding Window product page lists powder coating, anodized, wooden grain and PVDF coating. It does not establish one universal gray shade, gloss value or allowable color difference. A gray photograph also does not prove which coating was supplied.
For a phased apartment order or a replacement unit, state the visual target explicitly: the originally approved sample, an adjacent installed frame, or a newly agreed project sample. If these references do not agree, the buyer must choose the controlling target before manufacture, not at site delivery.
RGNL-100 Quick Specs for a Repeat Order
| Verified product entry | Record with the finish request |
|---|---|
| RGNL-100 Series Sliding Window; listed width 100 mm | Original order number, window mark and approved section revision. |
| Two tracks: two or four panels; three tracks: three or four panels | The exact layout, so a new panel is not mistaken for a complete matching assembly. |
| Alloy wire mesh | Whether the screen frame is included in the appearance review; mesh material does not identify its frame color. |
| Powder coating, anodized, wooden grain and PVDF coating | The original treatment and proposed treatment, each confirmed in writing. |
These are product-page entries, not a promise that every replacement component is interchangeable. Ask Rogenilan to confirm the original system and replacement scope from the order records.
Compare Two Matching Situations
Additional windows in a later project phase
Mark where the new units will sit relative to the earlier delivery. Identify elevations where old and new frames will be seen together. Ask for a sample comparison covering those locations, even when the order repeats the same gray description.
A new sash or frame beside existing components
Identify exactly what remains and what is replaced. Review the new sample next to the retained frame, screen frame, handle and trim as applicable. Approving a flat coupon alone does not approve the appearance of every accessory or the fit of a replacement sash.
A Repeat-Order Finish Register
Use the following register as a buyer-requested approval record. It is not a published Rogenilan tolerance or an automatic factory guarantee.
| Record | What to attach or decide |
|---|---|
| Original reference | Order and sample IDs, approval date, coating description, and who holds the retained physical sample. |
| Installed comparison | Window marks and interior/exterior faces to compare, plus dated condition photographs. Photos locate the comparison; they are not the final color standard. |
| New submission | New sample ID, intended order or production batch, finish route and any proposed change from the original specification. |
| Review conditions | Agreed lighting, viewing position, sample orientation and preparation method. Record color, sheen and texture observations separately. |
| Disposition | Accepted, revised sample required, or accepted only for named locations; include reviewer, date and scope. |
When the References Disagree
Suppose a proposed sample is accepted against the retained original but looks different beside an installed window. Do not silently redefine the original approval. Record both comparisons and request a decision: keep the original target, develop a revised sample, or agree a different placement or replacement scope. Each is subject to feasibility and written approval.
Record the installed surface condition and any preparation used before comparison. Do not promise that a new unit will exactly reproduce an older installed surface. If numerical color or gloss limits are required, ask for an agreed measurement method and limits; none are supplied by the cited product page.
Do not substitute a coating route merely because its gray name appears similar. Appearance approval and coating-specification approval are separate decisions. Confirm any proposed change before production release.
Separate Sample Work From Window Pricing
Request separate quotation lines for sample preparation, resubmission, finish review and the actual window or replacement component. Confirm whether repeat-order quantities, accessory matching and delivery grouping affect the offer. No fixed surcharge, minimum quantity or lead time is assumed here.
State whether price approval is conditional on the sample result. This avoids treating an accepted commercial quotation as approval of an unresolved gray finish.
Send a Matching Request
- Original order, window marks, drawings and quantities to repeat or replace.
- Retained sample ID and confirmed original finish specification.
- Locations where new and existing units will be viewed together.
- Frame, sash, screen frame, trim and handle surfaces included in the review.
- Required review method, approval owner, delivery destination and requested timing.
FAQ
Is catalog gray a complete order specification?
No. Confirm the actual finish route and approved physical sample. The public RGNL-100 page does not identify one universal gray code or gloss.
Does the same color name guarantee a repeat-order match?
No such guarantee is published in the cited data. Request a new sample comparison and record the acceptance decision.
Should the retained sample or installed window control approval?
Name the controlling reference in writing. When they lead to different judgments, record the difference and resolve it before release.
Is PVDF available for discussion?
PVDF coating is listed on the official RGNL-100 page. Confirm the proposed gray finish, coating specification and documentation for the actual order.
Can a phone photograph approve the final color?
Use photographs to identify locations and explain concerns. Agree the physical-sample review and any required measurements before accepting the finish.
Review the Repeat Order Before Production
Send Rogenilan the original order reference, gray sample details and adjacent-window locations for a product-specific matching review.



