Custom Strip Seal Brushes

Most strip brushes are made by folding fill over a wire and crimping it into a U-shaped metal channel. Others have tufts stapled into a rigid or flexible plastic backing. The result is a line of flexible filament that can be cut to length, fitted into a holder, or wound round a core to make a roller.

A strip brush makes a line: a seal, a wiper, a guide or an edge barrier. A brush plate covers an area and carries the weight of a sheet or part on its tips. If the job is along an edge or across a gap, a strip is right; if it is under a part, a plate is.

Almost every strip in our range is built to the holder or gap and starts at 100 pieces per design.

• Channel or backing: galvanized or stainless steel channel, aluminum holder, or a PVC or PP base. The channel size has to fit the holder.
• Trim height: how far the fill stands out of the channel. Common heights run from about 25 to 150 mm.
• Length: cut to length, commonly 100–3,000 mm, or in standard lengths such as 36, 72 or 96 inches.
• Filament diameter and density: finer, denser fill seals dust and light better; thicker fill lasts longer and resists heavier wear.
• Shape: straight, or the channel wound round a core for a roller.

Only a little. Set the strip so the tips are pressed in about 5–20% of the free trim. That closes the gap where it is wide and lets the fill flex where it is narrow. Too little, and light and dust get through; too much, and the fill bends into a permanent set, drags on the moving part and opens up the seal it was meant to make. Measure the gap at its widest and narrowest points, and choose the trim height to cover both.

• Nylon: the general fill for seals and wipers, with good recovery and a wide stiffness range.
• PBT: for wet or frequently washed installations, such as food lines.
• PP: economical for moisture and chemicals where the temperature is moderate.
• Horsehair and natural fiber: soft wiping of delicate surfaces.
• Conductive nylon, anti-static filament and carbon fiber: to carry static away; the channel must be grounded.
• Stainless steel wire: hot, abrasive or harsh outdoor gaps.

In a metal channel that slides into a holder, in an aluminum holder screwed or clipped to the surface, on a flexible backing with screw slots, or on an adhesive track for light duty. A holder lets the strip be changed without removing the holder. For curved holders, the channel can be formed to the curve. Send the holder section or the mounting-hole pattern with the enquiry.

• The gap or edge: width at its widest and narrowest, and what moves past it.
• Total length, and whether it is straight, curved or a ring.
• Channel, holder or backing, and trim height.
• Temperature, chemicals and any static requirement.
• Mounting method, hole pattern and quantity per design.