Comparison
BCHP vs Traditional Laser Pigments
Choose between an LDS/MID catalytic-activation route and a visual laser-marking pigment route before comparing individual additives.
Author: Aurexene Materials Engineering Team · Last updated: 2026-07-25
Decision Summary
Choose the route before the material. copper hydroxy-phosphate (BCHP) belongs first in an LDS/MID screen when the laser must create catalytic nuclei for downstream electroless metallization. “Traditional laser pigments” is a route group, not one material: visual-mark systems may work through photothermal heating, chemical color change, carbonization, foaming, ablation, or scattering.
Do not use visual contrast as proof of LDS readiness, and do not treat plating activity as proof that a visible mark meets appearance or durability requirements.
Comparison Matrix
| Decision factor | BCHP catalytic-activation route | Visual pigment or absorber route | Decision |
|---|---|---|---|
| Mark objective | Create a plateable laser-defined area | Create a durable dark or light visible mark | Route-dependent |
| Mechanism | Create or expose catalytic nuclei for electroless metallization | Photothermal or chemical color change, carbonization, foaming, ablation, or scattering | Route-dependent |
| Polymer and wavelength | Qualify polymer grade, BCHP form/loading, wavelength, optics, settings, and plating bath together | Qualify the exact pigment, polymer, color, thickness, wavelength, optics, and recipe | Evidence-dependent |
| Appearance | Check base-color and formulation effects of the copper/phosphate route | Check unmarked color, haze, opacity, gloss, and the required mark polarity | Specification-dependent |
| Damage margin | Activation must precede part damage | Readable contrast must precede part damage | Method-dependent |
| Downstream plating | Coverage, line definition, adhesion, resistance, and bath compatibility are required | Not required unless separately qualified as catalytic | BCHP for qualified LDS/MID routes |
| Process window | Multiple adjacent settings must preserve geometry and metallization | Multiple adjacent settings must preserve readability, appearance, cycle time, and integrity | Evidence-dependent |
| Durability | Test plated-line adhesion and electrical retention | Test contrast, readability, and surface integrity | Method-dependent |
| Required proof | Activation and plating metrics plus damage and document evidence | Mechanism, contrast, appearance, damage, window, durability, and document evidence | Neither without matched proof |
The matrix compares mechanisms and qualification routes. It does not establish a universal conductivity, contrast, loading, or cost ranking across unmatched polymers, wavelengths, geometries, and test methods.
Stability
For BCHP, retention means plated-line adhesion and electrical behavior after the specified exposure. For a visual route, retention means readable contrast and acceptable surface integrity after the specified abrasion, cleaning, chemical, weathering, humidity, or thermal-aging method.
Processability
Record the exact polymer grade, additive grade and form, loading, letdown or compounding route, part thickness, surface finish, wavelength, optics, focus, speed, power, and pulse condition. An isolated attractive mark is not a production window.
Cost Positioning
Compare delivered functional cost: accepted loading, dispersion and handling, cycle time, yield, plating steps where applicable, scrap, rework, qualification burden, and document readiness. Powder price alone does not compare these routes.
Typical Use Case
- BCHP: an LDS/MID route in which laser activation must support a qualified electroless metallization sequence.
- Visual pigment or absorber route: a polymer mark whose dark or light appearance, readability, damage margin, and durability are the release criteria.
Required Proof
For every candidate, retain the polymer, additive grade, loading, wavelength, optics, geometry, laser settings, acceptance method, damage boundary, and aging state with the result. Preserve request- or approval-required TDS/SDS states until approved documents exist.