View custom wool pile weatherstrip specifications
Brush seal sizes for each slot in an aluminum window system
Brush seal for a new or existing profile series
An aluminum profile factory designs the brush-seal slots into each profile series. When the series goes into production, every slot needs a pile strip that fits it, and the same strips must be available for years of repeat orders. Profile factories should send groove drawings, old samples or frame photos before asking for a custom brush seal quote.
From drawing to approved specification
Work slot by slot. A sliding series often has several brush-seal positions, and each can need its own size.
- Send the profile drawings or the series code with the slot dimensions
- List each brush-seal position: outer track, sash perimeter, interlock, screen frame
- We propose base width, backing thickness, pile height, yarn and fin for each slot
- Sample rolls are made and tested in assembled sample windows
- Approved values are recorded per slot with the series code
- Production and repeat orders follow that record
What is specified for each slot
Each slot gets its own line in the specification record.
| Base width and backing thickness | From the slot opening and depth in the drawing |
|---|---|
| Pile height | From the designed gap after assembly |
| Yarn | Regular, siliconed or UV-stabilized |
| Fin | None, or fin height set separately |
| Pile and backing color | Set separately, for example grey pile on a colored backing |
| Roll length and label | Including the series code and slot position |
Packing for the assembly line
Label every roll and carton with the series code and the slot position as well as the size, so assembly staff pick the right strip for each profile. Separate slots by carton, and agree roll length with the line so changeovers are not wasted.
Repeat control
Once approved, the specification file should include width, height, density, backing, color, roll length and packing. When the profile drawing changes, the affected slot is re-sampled and the record updated, rather than adjusting by eye.
This scope covers the pile brush seal only; extruded rubber gaskets and the aluminum profiles themselves are not supplied.
