material-comparator

PP vs ABS vs PC Material Comparator

Compare 3 main engineering plastics for protective cases: density, impact, temperature, cost, chemical resistance, UV resistance.

PP

PP (Polypropylene)

Density0.91 g/cm³
Impact8-10 kJ/m²
Temp range-20 to 100°C
Cost factor1.0×
Chemical★★★★★
UV★★★
Food-safeYes (FDA)
Recyclable100%

Best for：Medical, food, chemical resistance

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ABS

ABS (Acrylonitrile Butadiene Styrene)

Density1.04 g/cm³
Impact15-20 kJ/m²
Temp range-20 to 80°C
Cost factor1.2×
Chemical★★★
UV★★
Food-safeNo
Recyclable100%

Best for：General purpose, OEM customization

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PC

PC (Polycarbonate)

Density1.20 g/cm³
Impact60-80 kJ/m² (high)
Temp range-40 to 120°C
Cost factor1.8×
Chemical★★
UV★★★★
Food-safeConditional
Recyclable100%

Best for：High impact, military, transparent

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KeXinMaterials Recommendation

KeXinMaterials Series 8 defaults to ABS (best value). Custom PP (medical/food) or PC (MIL-SPEC high impact) available. MOQ 100 pcs, material cost difference only 10-30%.

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Material selection cheat sheet

Quick guide: Choose ABS for impact + polished finish (industrial, camera). Choose PP for chemical + low-temp (marine, medical). Choose PC for high-impact + clarity (premium, optical). Choose PA for toughness + abrasion (military, industrial). For low-volume (<5K), ABS is most cost-effective. For high-volume (>50K), PP is most cost-effective. For premium / optical, PC is worth the extra cost. For rugged / military, PA is the gold standard.

Compounds and additives

Common additives: UV stabilizers (5+ year sun exposure), anti-static (electronics), flame-retardant UL94 V-0 (aviation, EV), anti-microbial (medical, food), glass-fiber reinforced (extra strength), recycled content (30-50% lower cost), bio-based (sustainability). Each additive adds 5-20% to material cost.