Choosing a Brush Seal for Aluminum Sliding Windows is mainly a fit-and-clearance decision. A seal that is too low will not contact the mating surface; one that is too high can increase sliding resistance. Buyers should confirm the profile groove, sash-to-frame clearance, operating environment and required contact before ordering.
Qingdao Gleam Hardwares supplies brush weatherstrips and custom sealing profiles for window and door manufacturers, distributors and project buyers.
Start with the Profile, Not a Generic Seal Size
Provide a cross-section drawing or a clear sample of the existing profile. The most useful dimensions are the groove width and depth, the clearance between moving and fixed surfaces, and the available insertion direction. If a drawing is unavailable, send caliper photos with the measurement points marked.
Compare the Main Seal Options
| Seal type | Typical use | What to verify before ordering |
|---|---|---|
| Brush pile weatherstrip | Sliding aluminum windows and doors where low movement resistance is important | Backing width, pile height, pile contact, density or fin requirement, color and roll length |
| Compression profile | Locations where the sash or frame compresses the seal when closed | Cross-section, material, hardness, compression allowance and installation method |
| Custom profile | Non-standard grooves, replacement projects or private-label programs | Drawing or physical sample, tolerances, material requirement, approval sample and order quantity |
Parameters to Include in an RFQ
- Aluminum profile drawing or an existing seal sample
- Groove width and depth, plus the working clearance
- Brush pile height or compression profile cross-section
- Indoor or outdoor use, dust, moisture, UV or temperature requirements
- Color, roll length, packaging and private-label requirements
- Estimated quantity and destination country
Selection Example: Dust Entering a Sliding Sash
For a sliding sash with visible dust leakage, first measure the groove and the gap at several points because the clearance may not be uniform. Select a pile height that maintains light contact along the travel path without creating excessive drag. Approve a short sample in the actual aluminum profile before confirming mass production. This fit test is more reliable than choosing only by a catalog photo.
Inspection Evidence Buyers Can Request
Inspection requirements should be agreed on the quotation or approved drawing. Depending on the item and order, the inspection file can include dimension records, profile or groove fit photos, appearance and fiber checks, roll-length or packaging checks, and pre-shipment photos. Material or third-party test reports should be specified before ordering when a project standard requires them.
How to Request a Fit Review
Send the profile drawing, marked measurements, application photos, required material and estimated quantity. We will review the information against an available model or identify whether a custom profile and sample approval are needed.
See the window seal supplier page or the aluminum window brush seal page, then contact us for a model-specific quotation.
Frequently Asked Questions
Is a taller brush pile always better?
No. Excess pile height can increase drag or bend unevenly. The correct height depends on the measured clearance and required contact.
Can a seal be selected from a photo?
A photo helps identify the general type, but a drawing, measured sample or marked caliper photos are needed to confirm fit.
Can dimensions and packaging be customized?
Customization is reviewed against the drawing or sample, tooling requirement, order quantity and packaging specification.
