Impact-resistant injection molding polyamide PA6 Promyde B30 P MID

Description

Promyde® B30 P MID is an injection molding grade of polyamide 6 (PA6) with heat stabilization and medium-level impact modification. Grade designation: B — injection grade, 30 — relative viscosity η_rel ≈ 3.0 (low, suited to molding thin-walled parts), P — process-stabilized (improved processing stability), MID — Medium Impact (an intermediate impact strength level between standard PA6 and high-impact HI grades).

It is positioned between Promyde® B33L (standard, without impact modification, high stiffness) and Promyde® B33 P2 HI (High Impact, extrusion grade). MID is the optimum choice for series-produced molded parts under medium loads, where impact resistance is required without a significant loss of stiffness or increase in cost. The low viscosity (η_rel 3.0) provides fast filling of thin-walled and complex molds.

Typical parameters: density ~1.13 g/cm³, η_rel ≈ 3.0, MFR ~25–35 g/10 min (275 °C / 5 kg — high melt flow for thin-wall molding), Charpy notched impact strength ~8–10 kJ/m² at 23 °C (ISO 179-1eA), HDT/A ~60–75 °C (1.8 MPa), Tm 220 °C. Stiffness is ~10–15 % lower than standard PA6 (a moderate trade-off for the impact modification).

Key advantages

• Balanced ratio of impact strength to stiffness — an intermediate level between standard PA6 and the HI grade, optimal for most series-produced parts under medium loads
• High melt flow (η_rel 3.0) — filling of thin-walled and complex molds without overheating, short cycle times
• Heat stabilization: resistance to degradation during repeated processing and in service at elevated temperatures (up to 90 °C dry)
• Resistance to oils, gasoline, diesel fuel, dilute alkalis and aliphatic hydrocarbons
• Easy demolding thanks to the optimized processing profile
• Can be colored with masterbatches during molding
• Compatible with standard PA6 tooling — no special processing conditions required

Applications

• Non-structural automotive components: housing parts, fasteners, decorative trim, wiring harness holders, ventilation system components, plugs
• Electrical engineering: housings for power tools and household appliances, terminal insulation elements, switch and socket housings (for flammability class V-2)
• Industrial equipment: medium-load gears and bushings, guides, conveyor rollers, technical housings
• Household appliances: components for washing machines and dishwashers (internal, without direct hot-water contact), hair dryer and blender housings, buttons and levers
• Construction hardware: facade system fixings, dowels and anchors, ventilated facade components
• Sports and household goods: tool handles and grips, garden equipment components, power tool housings

Limitations

• Base flammability class UL 94 V-2 — not for FR-critical applications; for V-0, see the dedicated FR grades of PA6/PA66 in our range
• High water absorption (~9 % at saturation) — parts change dimensions and lose up to 30 % of stiffness in permanently humid environments
• Not for prolonged contact with hot water above 80 °C — for such applications, see PA610

Global market counterparts: BASF Ultramid® B27 LN MI, Lanxess Durethan® B 30 SK, DOMO Domamid® 24E, Toray Amilan® CM1017XF. Promyde® B30 P MID is the MW position for series-produced injection-molded parts under medium loads, balancing cost and impact strength. For high-impact applications, see Promyde® B33 P2 HI or Promyde® B33 P2 G25 BL01 (reinforced + flame-retardant).

The stated values are measured using in-house methods close to the corresponding ISO and GOST standards. This information is for reference only and does not constitute an official batch data sheet. Please request the TDS and MSDS for the specific batch before industrial use.