Garage Door Side Brush Seal and Aluminum Retainer Manufacturer

Chi garage door side brush seals mount into a aluminum retainer to form a flexible barrier along vertical jambs. Low-friction brush weather stripping that seals side gaps against drafts, dust, insects, and light—ideal for high-cycle residential sectional doors and doors with uneven frames.

Features

Nylon or PP filament

Low friction, quiet travel on high-cycle doors

Custom bristle height/color, cut-to-length kits

OEM branding, and reliable lead times

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PRODUCT DETAIL

Chi garage door brush side seals use dense bristles mounted in an aluminum retainer to form a flexible barrier along the door's vertical edges. Compared with rubber lips, brushes deliver lower sliding resistance, better tolerance to uneven jambs, and stable sealing over long cycling. Brush seals are especially effective for dusty/bug-prone garages and doors that see frequent open/close.

Garage Door Brush Seal Features

• Gap tolerance: bristles of garage door seal conform to uneven frames and wider/variable gaps.

• Durability: no "cold stiffening" like some rubbers; good UV/ozone stability with nylon brush seals.

• Clean & neat look: slim profile with black/charcoal bristles and anodized holders.

• Dimensional control: consistent trim height, set, and straightness for clean door lines.

• Dense bristle pack improves air/dust/insect exclusion while keeping drag low.

• Corrosion-aware build: stainless crimp wire & anodized holders available for coastal jobs.

• Process control: incoming material checks, SPC on cut lengths and drilling, 100% label verification.

Brush Seal Specifications

Filament Materials

Nylon or PP

Operating Temp

Nylon: −40°C to +100°C,PP: −20°C to +80°C.

Bristle (Trim) Heights

20/25/30/38/50/63/75 mm ( 0.8"/ 1"/ 1.5"/ 2"/ 3").

Bristle Colors

Black, gray optional for OEM.

Backing Widths

3-10 mm strip in a C-channel or T-slot retainer.

Retainers

Aluminum, anodized natural or black powder-coated, pre-drilled.

Lengths

Pre-cut 8ft/ 9ft/ 16ft sets; bulk 25/ 50/ 100ft coils for shop cutting.

FREQUENTLY ASKED QUESTIONS

How do I write the brush seal spec on an RFQ/PO to avoid mismatch with my existing aluminum holder?

Include and verify the following on each line item about the garage door brush seals RFQ/PO:

• Bristle (material/height): Nylon or PP; 20/25/30/38/50/63/75 mm (0.8"- 3").
• Strip/back width: 3–10 mm; state the holder type (C-channel or T-slot).
• Retainer (aluminum holder): 6063-T5, anodized or black powder-coated, pre-drilled 200–300 mm centers.
• Length: 7/8/9/16 ft pre-cut kits or 25/50/100 ft coils.
• Hardware/labels: screws (Y/N), pictogram install card, barcode/QR, language set.
If uncertain, provide a short sample or dimensional drawing for side seal so we can confirm channel type and back width before production.

As a wholesaler, how should I stock Nylon vs PP bristles, and which lengths are the fast movers?

• Material strategy:
Nylon bristles: better UV/ozone stability and cold-weather flexibility—choose for premium/high-cycle/outdoor sun exposure to reduce callbacks.
PP bristles: economy choice for mild climates and budget-sensitive projects.
• Length strategy: keep 7 ft / 8 ft (single doors) and 16 ft (double doors) pre-cut kits as quick-ship SKUs; add 25/50/100 ft coils for shop cutting and non-standard heights.

Are your aluminum retainer brush seals suitable for coastal/high-salt projects?

Yes.
• Retainers: upgraded anodic film or black powder coat with adhesion/thickness checks.
• Brush strips: optional stainless crimp wire; Nylon bristles recommended for weatherability.
• Fasteners: stainless screws available. We can supply RoHS/REACH statements and salt-spray/adhesion data upon request.