Material Composition | Heavy-duty construction, frequent use | Base: Plastic (lightweight, ASTM D543 compliant for 50+ chemical exposures) ▲ Advanced: Rubber+Plastic composite (ASTM D543 + ASTM E289) | Lightweight reduces fatigue; Advanced offers enhanced chemical resistance and grip | Plastic may wear faster than metal; Advanced is slightly heavier |
Weight & Portability | Portable applications, handheld use | Base: 1.2 kg (ISO 14361) ▲ Advanced: 1.5 kg (ISO 14361 + reinforced design) | Base is easy to maneuver; Advanced balances durability and portability | Advanced adds minimal weight; Base may lack load-bearing capacity for heavy materials |
Blade Flexibility | Uneven surfaces, delicate materials | Base: Plastic (rigid, ASTM E289 3mm deflection) ▲ Advanced: Rubber+Plastic (ASTM E289 8mm deflection) | Advanced conforms to surfaces; Base suits flat, even surfaces | Advanced may sag under heavy loads; Base lacks flexibility for complex contours |
Handle Design | Prolonged use, user comfort | Detachable plastic handle (ISO 9241 compliant) ▲ Advanced: Ergonomic rubber-coated grip (ISO 9241 + ASTM D2000) | Easy replacement; Advanced reduces hand fatigue and improves grip strength | Plastic handles may heat in sunlight; Advanced adds cost |
Capacity & Load | Large-scale plastering, heavy materials | 33x33cm surface area (ISO 14361) ▲ Advanced: Reinforced edges for 15kg load (ASTM D638) | Spacious for large projects; Advanced handles heavier materials | Larger size may be bulkier to store; Advanced requires careful handling to avoid damage |
Durability & Longevity | High-frequency professional use | Base: Plastic (1000+ uses, ASTM D4226) ▲ Advanced: Composite (2000+ uses, ASTM D4226 + ISO 178) | Cost-effective for moderate use; Advanced lasts twice as long under stress | Plastic may degrade over time; Advanced demands careful maintenance |