WRWeatherstrip ReferenceWeatherstrip profile identification by shape & measurements
Reference guide · Compare profile shape, mounting interface and measurements · Confirm fit before ordering.
Profile family · Compression seal

Kerf-in foam-clad compression Weatherstrip Profile

Soft/foam compression body with a distinct insert/backing intended for a groove; outer skin/liner may be visible. This page identifies a generic family and the measurements needed to compare sites; it does not identify an exact replacement.

Generic profile family supportedExact replacement fit not checkeddoor · window
Original schematic reference graphic
Reference graphic — schematic, not an exact product depiction.
Original schematic reference graphic
Reference graphic — schematic, not an exact product depiction.

Identification snapshot

Subtype
Kerf-in foam-clad compression
Contact mode
compression
Seal body
foam core with outer liner
Mount/interface
kerf / push-in stem
Common terms
foam-clad kerf seal, foam-filled kerf weatherstrip, Q-LON-class profile
Typical intent
entry doors; casement/tilt-turn windows

Measure before comparing

Measurement / observationWhat to recordCapture rule
stem/backing widthkerf stem widthMeasure directly when possible; preserve original value/unit and uncertainty.
profile reachuncompressed sealing projectionMeasure directly when possible; preserve original value/unit and uncertainty.
body heightoverall profile heightMeasure directly when possible; preserve original value/unit and uncertainty.
orientationmeasurement notes + photo orientationMeasure directly when possible; preserve original value/unit and uncertainty.
Do not infer: Do not use Q-LON as a generic compatibility claim; brand/product code and dimensions remain separate evidence. No exact product compatibility, OEM identity, material chemistry, generation or supersession is implied.

Measurement workflow

  1. Stabilize the sample without stretching or deliberate compression.
  2. Choose and record the mounting/base datum.
  3. Record the tool and actual resolution before dimensions.
  4. Measure the base/interface before the soft sealing element.
  5. Capture relaxed geometry with minimal pressure.
  6. Measure the receiver separately when accessible.
  7. Record contact motion, insertion/compression direction, sample condition and uncertainty.
  8. Keep compatibility separate: geometry may narrow sites but does not prove fit.

Provenance

Source-backed evidence only. This page does not broaden the scope of the cited sources.

  • Source — Schlegel, Weatherseal products: Q-LON, pile & extruded seals
    https://www.schlegel.com/products/
    Supports: Compression foam gasket, brush pile, fin-pile, extruded-seal technologies; kerf/surface/carrier fitment distinctions. · accessed 2026-10-07
  • Source — Schlegel, Glossary
    https://www.schlegel.com/glossary/
    Supports: Compression seal/gasket, brush pile/weatherpile, carrier and threshold terminology; Aquamac as legacy name for Q-LON. · accessed 2026-10-07

Scope rule: Measurements, generic profile identification and exact replacement fit are kept separate. Use cited sources and your receiver geometry before making a fit decision.

Useful next steps