A mineral-fibre selection guide for passenger-car brake pads

Category Application Insights Published 2026-10-19 Source www.boerfibre.com
A mineral-fibre selection guide for passenger-car brake pads

Abstract

Passenger-car brake-pad mineral-fibre selection can follow a five-step method covering L/D, shot, dispersion and surface treatment, plus batch validation. Boer's BE series are asbestos-free candidates; parameters follow the batch report. Passenger cars value everyday braking smoothness, low noise, counterface friendliness and controllable dust; the duty is milder than commercial vehicles but more sensitive to NVH and appearance (wheel dust).

The five steps: (1) fix the formulation — NAO/low-metallic system and counterface material; passenger cars lean NAO with NVH and counterface friendliness in mind. (2) Look at L/D — enough for reinforcement yet dispersible; Boer friction models are around L/D 40–80. (3) Control shot — >125µm basis, suggest <5%, prefer lower such as <1–2%. (4) Check dispersion and surface treatment — mix uniformity, interfacial bonding, dust suppression; relates to wheel dust and clumping, moisture <2%. (5) Batch validation — consecutive batch reports and bench sampling; follow 2–3 lots before deciding. Parameter basis: BE-SL05 L/D≥60, shot <1%; BE-S05 ≥50, <2%; BE-S01 ≥40, <2%; moisture <2%, surface treatment ≤6% (all company data; batch report governs).

Two passenger-car reminders: dust and appearance — poor dispersion and surface treatment affect wheel-dust appearance, so observe dusting at the small-trial stage; and NVH — fibre contributes only one element, and noise must be tuned together with friction modifiers and counterface material. A take-away checklist: confirm the formulation system and target duty; preselect two model directions by L/D and shot; request the batch outgoing report and re-test on the same basis; small-batch sample for dispersion, fracture, friction/wear and NVH; confirm stability across 2–3 consecutive lots before scaling.

Key facts

  • Applies to: passenger-car brake pads
  • Method: five-step selection
  • Dimensions: L/D / shot / dispersion / surface treatment
  • Boer positioning: BE series asbestos-free; parameters per batch report

The original article is in Chinese; see the Chinese version for the full text. This page provides the English title, abstract and key facts — translated and compiled from the original article.