Resin-bond Diamond Fickert Abrasive Blocks are used after metal-bond coarse grinding and before high-gloss polishing or antique brushing. Their primary functions are to eliminate deep tool marks left by metal-bond blocks, refine the surface texture, and ensure uniform surface roughness. Serving as a crucial transitional step, they bridge the gap between the initial grinding stages and the final finishing processes-whether for high-gloss, matte, or leather-look antique finishes.
Structure and Matrix Formulation Design
1. Overall Structure
- Base: Rigid plastic snap-fit base featuring a standard L140 flat-bottom slot, compatible with Frankfurt-style grinding heads;
- Working Layer: Formed via hot-pressing a mixture of modified phenolic resin and diamond micron powder; available in two formulations: rigid resin (for granite/engineered stone) and ultra-soft flexible resin (for marble/luxury stone);
- Working Surface: Available in flat or diagonal-grooved designs; the grooves facilitate rapid stone dust evacuation, preventing clogging and surface scratching caused by dust buildup.
2. Key Formulation Characteristics (Distinguishing from metal and matte-finish resin Frankfurt blocks)
- Resin matrix features moderate density and hardness, positioning it between rigid metal blocks and porous matte-finish resin blocks;
- Diamond Selection: Uses medium-to-fine grit, rounded (low-sharpness) monocrystalline diamonds to avoid creating deep scratches;
- Balanced Filler Ratio: Optimizes the balance between fine grinding and wear resistance; unlike matte blocks (intentionally porous/soft) or high-gloss blocks (extremely dense for polishing), this design offers a balanced approach;
- Superior Thermal Conductivity and Cushioning: Outperforms metal grinding blocks; reduces the risk of base-color burning or vein chipping when processing soft stone.
Standard Grit Classification and Corresponding Processing Effects
Main grit sizes for Resin Diamond Fickert for Fine Polishing: 180#, 220#, 320#, 400#, and 600#; each grade offers distinct processing characteristics for progressively finer finishes.
1. 180#/220# Coarse-Stage Fine Grinding:
- Follows 120# metal abrasive pads; rapidly diminishes deep scratches from coarse grinding and significantly reduces surface unevenness. Produces a uniform, coarse-sanded texture with a gloss level of 10°–18°; commonly used for preliminary base preparation for antique-style finishes.
2. 320# Mid-Stage Fine Grinding (General-Purpose Workhorse)
- Significantly refines the scratch pattern; only subtle, uniform sanding marks are visible to the naked eye. Gloss level: 20°–28°; serves as a universal transition step for high-gloss, matte, and leather-look finishes.
3. 400# Standard Fine Grinding (Production Line Standard)
The most widely used grade on the market; yields a flat, smooth surface free of obvious mechanical sanding marks. Gloss level: 25°–32°;
- Matte finish: Can switch to a low-density matte resin pad for the final step;
- High-gloss finish: Proceed to 800# or higher high-gloss resin pads;
- Antique/Leather finish: Follow with a T1 diamond nylon brush after the 400# step.
4. 600# Ultra-Fine Soft Polishing
- Approximates a soft-sheen texture with extremely shallow scratch patterns. Gloss level: 30°–40°; a specialized transition step for high-end marble and luxury stone (soft-matte finishes), replacing coarse matte pads to ensure a smoother surface free of rough, gritty sensations.
Key Advantages of Our resin diamond fickert for fine polishing
1. Seamlessly handles the transition from coarse metal grinding and eliminates deep, irreversible scratches.
- While metal segments provide aggressive stock removal and leave coarse scratch patterns, our fine-grinding resin blocks utilize flexible grinding action to progressively fill and refine these marks. This prevents the persistence of "hidden" patterns that high-grit polishing stages fail to conceal, thereby significantly reducing rework rates.
2. Universal formulations suitable for both soft and hard stone, offering high operational tolerance.
- Hard-type (high-hardness resin): Suitable for granite, engineered quartz, Indian Red, and Black Galaxy; offers excellent wear resistance and low consumption during mass production.
- Ultra-soft flexible type (low-hardness modified resin): Suitable for beige marble and luxury stones; provides superior cushioning to avoid scratching mica or colored veining, and prevents surface burning or discoloration.
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