Non-fin brush seal for aluminum sliding windows uses straight polypropylene pile on a groove-in backing, with no center barrier in this standard configuration. It is an ordering route for window fabricators, hardware importers and sliding-system distributors who need to match an existing profile channel and maintain smooth sash movement.
For distributors of aluminum window accessories, this non-fin wool pile weather strip is the groove-in option for compatible aluminum-alloy door, window and screen frames. Specify the aluminum window brush seal from profile geometry and working clearance rather than from a generic photograph or a single marketplace size.
The backing width must match the profile channel, while pile height is selected against the working clearance and required contact. The final construction, color, roll format and packing are confirmed on the quotation and approved drawing or sample.
- Standard non-fin groove-in pile seal for compatible aluminum and polymer profiles
- Straight-pile configuration here; dedicated fin-pile alternatives linked below
- Standard or optional silicone-treated pile, confirmed by quoted model
- Bulk brush seal rolls and OEM packing reviewed for distribution programs
- Fit validation from a profile drawing, measured sample or trial piece
Non-fin wool pile weather strip for a moving frame
This page’s standard configuration uses straight PP pile without a center fin. It suits aluminum sliding window frame sides, overlapping sliding-door members and compatible screen-frame channels where the design calls for a flexible brush contact. In trade enquiries it may be called wool pile weather strip, a poly pile gasket, a window frame sealing brush or a weather strip brush. Specify polypropylene yarn when that is the required material; the trade name does not establish animal-wool content.
For screen-door and window-screen frame sides, confirm the track position and brush contact without obstructing the screen travel or drainage route. A brush strip is an accessory to the frame; screen mesh, rollers and aluminum profiles are separate unless listed in the quotation.
Aluminium window strip brush for sliding frames
An aluminium window weather strip brush, also described in enquiries as an aluminum alloy window seal brush, must match the retaining channel and working clearance. These terms describe the frame application; this non-fin option uses PP pile with the quoted polymer backing. Confirm the backing section, pile height and sample fit before a bulk OEM order.
Non-fin brush seal ordering specifications
The dimensions below are common made-to-order production options. Standard market sizes can be produced, and special sizes can be developed from customer samples or drawings. Confirm the exact backing section, height convention and material combination on the approved order specification.
| Selection point | Production options | What the buyer should confirm |
|---|---|---|
| Installation | Groove-in polymer backing for compatible window and door profiles | Channel cross-section, insertion direction and installation position |
| Backing width | 4.8, 5.8, 6.8, 7.8 and 10.8 mm common backing-width options; other sizes to drawing or sample | Measured internal channel width and any drawing tolerance |
| Pile height | Selected from the working clearance and quoted construction | Working clearance, expected contact and sash movement |
| Pile / base | PP pile with polymer backing according to the quoted model | Material requirement, indoor/outdoor use and project specification |
| Construction | Non-fin straight pile; other constructions quoted separately | Air, dust, moisture and operating-friction priorities |
| Treatment | Standard or optional silicone-treated pile | Required movement, environment and approved sample |
| Color | Black, gray, white, brown or custom color by review | Color reference, quantity and acceptable variation |
| Roll format | Length agreed for the selected section, reel and packing | Line-feeding, retail repacking and carton requirements |
| OEM options | Label, roll length, carton and model identification reviewed with quantity | Destination market, order volume and brand requirements |
| Order terms | Sample terms, MOQ and production lead time are quotation-specific | Selected model, customization, quantity and delivery destination |
No universal air-leakage, water-ingress, acoustic or cycle-life rating applies to every construction on this page. If a project requires a named test method or threshold, include it in the enquiry; performance should be represented as verified only when supported by the applicable document or approved test.
Choose the construction for the profile
Straight-pile groove-in seal
Use a straight-pile construction when the profile already has an insertion channel and the application needs a flexible brush contact without a specified center barrier. Confirm both channel retention and sash movement on the actual profile.
Center-fin pile weatherstrip
A center fin adds a continuous barrier inside the pile and may be selected where the assembly needs more control of air, dust or moisture. Fin height, stiffness and sliding resistance must still be validated for the profile. Buyers sourcing this configuration can compare the dedicated fin pile weatherstrip for sliding windows.
Silicone-treated pile option
Silicone treatment is an optional quoted characteristic rather than an assumption for every model. State it on the purchase specification and verify the sample if it is required for the project. For treatment-led sourcing, compare the siliconized PP pile weatherstrip.
Self-adhesive retrofit strip
If the frame has no insertion groove but offers a suitable clean, flat bonding surface, compare the self adhesive brush seal strip in 5 mm / 7 mm backing families. Adhesive-backed and groove-in seals are different installation systems and should not be substituted from pile height alone.
How to select backing width and pile height
- Measure the internal width and depth of the profile channel, not the exposed top of the seal.
- Measure the working clearance at several points because sash and frame spacing can vary.
- Identify how much pile contact is needed without creating unacceptable operating resistance.
- Choose straight pile, fin pile or silicone treatment according to the sealing and movement priorities.
- Approve a sample on the real profile before releasing a volume order.
A taller pile is not automatically a better seal. Excess compression can increase friction or deform the pile, while insufficient contact can leave a leakage path. A drawing or measured sample is more reliable than selecting from a product photo.
What to send for an accurate B2B quotation
- Profile cross-section drawing or clear channel measurements
- Working clearance and installation position
- Straight pile, center-fin or silicone-treatment requirement
- Color, roll length, estimated annual demand and first-order quantity
- Private label, carton, inspection or named test requirements
- Destination country or port and required delivery schedule
Commercial value for importers and window-system suppliers
- Lower mismatch risk: select against the profile and clearance before confirming a bulk order.
- Clearer SKU architecture: separate straight pile, fin pile and adhesive-backed models so distributors can sell the right installation method.
- More usable packing: review roll length, label and carton details for industrial feeding or local resale.
- More repeatable replenishment: record the approved width, height, construction, color and packing for reorders.
Frequently asked questions
Which dimensions should I measure first?
Start with the profile channel width and the working clearance the pile must cover. Add the channel depth, insertion direction and any drawing tolerances when available.
Is a center fin always the best option?
No. A fin can add a barrier, but its stiffness and geometry can also change operating resistance. Select it from the assembly requirement and verify movement on a sample.
Is every brush seal silicone-treated?
No. Silicone treatment is optional and must be identified in the quotation or purchase specification. Do not infer it from color or product photography.
Can you select a model from a profile drawing?
A drawing is a strong starting point. For final approval, combine it with the working clearance, application conditions and, where practical, a trial piece on the actual profile.
Are sample terms, MOQ and lead time fixed?
No. They depend on the selected construction, dimensions, color, packing, quantity and current production plan. They are confirmed on the quotation rather than promised as universal terms on this page.
Does every model have the same waterproof or acoustic rating?
No. Assembly performance depends on the seal, profile geometry, compression, installation and test method. Send any required standard or threshold for feasibility review and documentary confirmation.
Request a brush-seal selection and OEM quotation
Send the profile drawing or channel width, working clearance, preferred construction, color, roll format, quantity and destination.
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