China Diamond Polishing Pad Manufacturers & Factory

Dry polishing pads incorporate high-temperature polymers and specialized thermal dissipation compounds that resist resin softening and surface burning up to 220°C. Wet pads feature a denser, standard resin matrix that relies on constant water flow for thermal regulation and slurry removal. Using wet pads dry causes immediate glazing, resin transfer, and workpiece staining.

Bond hardness operates inversely to substrate hardness: hard concrete (high quartz/flint) requires soft bonds so worn diamond grit fractures away to consistently expose sharp diamond facets. Conversely, soft, abrasive surfaces (green concrete, limestone) necessitate hard-retention bonds to prevent the matrix from washing away prematurely.

Industrial-grade pads utilize high-tenacity, heat-resistant nylon looped backings directly vulcanized into the base polymer during compression molding, rather than assembled using topical adhesives. This structural bonding prevents shear separation under rotational speeds exceeding 4,000 RPM and continuous moisture.

We employ automated mechanical 3D powder turbula blenders that distribute synthetic diamond micron powder throughout resin mixtures within ±1.5% concentration variance. Automated gravimetric feeders guarantee that every segment mold receives an identical abrasive payload prior to high-pressure thermal sintering.