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PP-H · reinforced grade

PP-H TALC40

Properties of the TALC40 condition, compared with the other PP-H grades.

Low-cost stiffening and dimensional-stability filler for appliance and automotive interior parts where glass fiber's anisotropy and surface roughness are unacceptable.

Budget cost $
Request a quote in PP-H TALC40PP-H overview

What is PP-H TALC40?

PP-H TALC40 is PP-H in the TALC40 grade — low-cost stiffening and dimensional-stability filler for appliance and automotive interior parts where glass fiber's anisotropy and surface roughness are unacceptable. PP-H TALC40 has a yield strength of 30 MPa (4.35 ksi) and a tensile strength of 30 MPa (4.35 ksi) — weaker than 74% of polymer grades. Elongation at break is 10% and the elastic modulus is 3.6 GPa (0.522 Msi). PP-H TALC40 has a density of 1.24 g/cm³ (0.0448 lb/in³), heavier than 63% of polymer grades. Its glass-transition temperature is -10°C (14 °F). UNF is the default condition FabDigit quotes; TALC40 is available on request or by drawing note.

Advantages

  • Low moisture uptake — 0.01%, better than 97% of polymer grades
  • Low embodied carbon — 2 kg CO₂/kg, better than 96% of polymer grades
  • Stiff — 3.6 GPa (0.522 Msi), better than 83% of polymer grades
  • Conducts heat well — 0.3 W/m·K (0.173 BTU/hr·ft·°F), better than 82% of polymer grades
  • Good corrosion resistance — 90/100, better than 81% of polymer grades

Limitations

  • Degrades in UV without stabilisers — 20/100, worse than 88% of polymer grades
  • Hard to polish — 30/100, worse than 80% of polymer grades

PP-H TALC40 properties

Typical room-temperature values for PP-H TALC40 — 17 properties are specific to this condition; the rest are grade-level values shared by every PP-H grade. Each bar shows where the value sits among the polymer grades in FabDigit's library — further right is higher.

Physical6

PP-H TALC40 has a density of 1.24 g/cm³ (0.0448 lb/in³), heavier than 63% of polymer grades. Its glass-transition temperature is -10°C (14 °F).

Density1.24 g/cm³0.04 lb/in³
Melting Temperature (Tm)165°C329 °F
Glass Transition (Tg)-10°C14 °F
Water Absorption (24 h)0.01%
Water Absorption (Saturation)0.03%
Refractive Index1.49

Mechanical17

PP-H TALC40 has a yield strength of 30 MPa (4.35 ksi) and a tensile strength of 30 MPa (4.35 ksi) — weaker than 74% of polymer grades. Elongation at break is 10% and the elastic modulus is 3.6 GPa (0.522 Msi).

Elastic (Young's) Modulus3.6 GPa0.52 Msi
Shear Modulus0.5 GPa0.07 Msi
Bulk Modulus4 GPa0.51 Msi
Poisson's Ratio0.42
Tensile Strength (Ultimate)30 MPa4.4 ksi
Yield Strength (0.2% offset)30 MPa4.4 ksi
Elongation at Break10%
Compressive Strength45 MPa6.5 ksi
Compressive Modulus1.5 GPa0.22 Msi
Flexural Strength50 MPa7.3 ksi
Flexural Modulus3.4 GPa0.49 Msi
Shear Strength25 MPa3.6 ksi
Fracture Toughness (K_IC)3 MPa·√m2.7 ksi·√in
Izod Impact, Notched25 J/m0.47 ft·lbf/in
Hardness, Shore D72 Shore D
Hardness, Rockwell M68 HRM
Hardness, Rockwell R96 HRR

Thermal11

PP-H TALC40 is rated for continuous service to 110°C (230 °F). It conducts heat at 0.3 W/m·K (0.173 BTU/hr·ft·°F), better than 82% of polymer grades. Thermal expansion is 60 µm/m·K (33.3 µin/in·°F).

Thermal Conductivity0.3 W/m·K0.17 BTU/hr·ft·°F
Specific Heat Capacity1,900 J/kg·K0.45 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)60 µm/m·K33.3 µin/in·°F
Max Service Temperature (continuous)110°C230 °F
Min Service Temperature-10°C14 °F
Heat Deflection Temp. @ 0.45 MPa125°C257 °F
Heat Deflection Temp. @ 1.8 MPa80°C176 °F
Vicat Softening Point (B50)90°C194 °F
Flammability (UL 94)HB (1.6 mm), burns readily without flame retardant
Limiting Oxygen Index18%
Max Service Temperature (short-term)130°C266 °F

Electrical7

PP-H TALC40 is an electrical insulator with a dielectric strength of 28 kV/mm (711.2 V/mil) and a resistivity of 1×10¹⁵ Ω·m.

Electrical Resistivity1×10¹⁵ Ω·m3.94×10²² µΩ·in
Dielectric Strength28 kV/mm711 V/mil
Dielectric Constant (1 MHz)2.25
Dissipation Factor (1 MHz)3×10⁻⁴
Volume Resistivity1×10¹⁷ Ω·cm
Surface Resistivity1×10¹⁵ Ω
Comparative Tracking Index (CTI)600 V

Chemical & Environmental3

Corrosion resistance is excellent (90/100), better than 81% of polymer grades. UV resistance is poor.

Corrosion ResistanceExcellent90/100
UV / Weathering ResistancePoor20/100
Chemical Resistance SummaryExcellent against acids, alkalis, salt solutions, alcohols and most polar solvents; attacked/swollen by chlorinated and aromatic hydrocarbons above ~60 °C; oxidizes under UV and hot air without stabilizers; susceptible to environmental stress cracking in strong oxidizers.

Sustainability4

Producing a kilogram of PP-H TALC40 takes about 78 MJ of energy and emits 2 kg of CO₂ — less than 88% of polymer grades. Typical recycled content is 3%.

Embodied Energy (primary production)78 MJ/kg33,534 BTU/lb
Embodied Carbon (primary production)2 kg CO₂/kg
Embodied Water100 L/kg12 gal/lb
Typical Recycled Content3%

Manufacturability8

PP-H TALC40's machinability is good (55/100, worse than 63% of polymer grades); weldability very good (75/100); formability good (65/100).

MachinabilityGood55/100
WeldabilityVery good75/100
Formability (cold)Good65/100
PolishabilityPoor30/100
Mold Shrinkage1%
Melt Flow Rate10 g/10 min
Processing Melt Temperature (typ.)230°C446 °F
Mold Temperature (typ.)35°C95 °F

Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.

Other PP-H grades and fills

PP-H is also supplied in 11 other conditions. The full side-by-side table is on the PP-H overview.

Working with PP-H TALC40

Is PP-H easy to machine?

Machines easily with sharp, high-rake tools, high speed and low feed; use coolant/air blast to avoid gumming and allow for springback and post-machining relaxation.

Can PP-H be welded?

Excellent hot-gas, butt-fusion, socket-fusion, hot-plate and ultrasonic welding; adhesive bonding requires plasma/flame/corona pretreatment or PP-specific primers.

Can PP-H be formed, bent or molded?

Injection molds at 200–260 °C melt, 20–60 °C tool, 1.0–2.5 % shrinkage (glass grades 0.3–0.8 %); sheet thermoforms and cold-bends only over a heated line due to a narrow rubbery plateau.

What surface finishes work on PP-H?

Not paintable or platable as-molded; needs flame/corona/plasma activation or adhesion promoter; textured mold surfaces are preferred since high-gloss polish scratches easily.

PP-H chemical composition (wt %)

Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.

ElementSpec limit (wt %)Nominal
stabilizer/additive packagephenolic/phosphite antioxidants, acid scavenger, nucleator, slip/antistat0.05 – 10.3
glass fiber0 for default; 20 or 40 wt % in GF20/GF40 variants, with maleic-anhydride-PP coupling agent0 – 400
talc / mineral filleronly in mineral-filled variants0 – 400
propylene (homopolymer chain)isotactic polypropylene, no comonomer; base resinbalance—

PP-H TALC40 — frequently asked

What is PP-H TALC40 used for?

PP-H TALC40 is typically used for pipes and fittings, woven sacks and raffia tape, battery cases, fibers and nonwovens, rigid packaging containers and chemical tanks. In short: stiffest PP variant; weldable chemical-resistant polyolefin; low-cost commodity resin.

What is the yield strength of PP-H TALC40?

PP-H TALC40 has a typical yield strength of 30 MPa (4.35 ksi) and a tensile strength of 30 MPa (4.35 ksi) — weaker than 74% of polymer grades. Strength varies by condition: see the 12 listed tempers.

Is PP-H TALC40 easy to machine?

Reasonably — machinability is rated good (55/100, worse than 63% of polymer grades). Machines easily with sharp, high-rake tools, high speed and low feed; use coolant/air blast to avoid gumming and allow for springback and post-machining relaxation.

Can PP-H TALC40 be welded?

Yes — weldability is rated very good (75/100). Excellent hot-gas, butt-fusion, socket-fusion, hot-plate and ultrasonic welding; adhesive bonding requires plasma/flame/corona pretreatment or PP-specific primers.

What surface finishes work on PP-H TALC40?

Not paintable or platable as-molded; needs flame/corona/plasma activation or adhesion promoter; textured mold surfaces are preferred since high-gloss polish scratches easily.

Can PP-H TALC40 be formed, bent or molded?

Injection molds at 200–260 °C melt, 20–60 °C tool, 1.0–2.5 % shrinkage (glass grades 0.3–0.8 %); sheet thermoforms and cold-bends only over a heated line due to a narrow rubbery plateau.

What is the maximum service temperature of PP-H TALC40?

PP-H TALC40 is rated for continuous use to about 110°C (230 °F), and briefly to 130°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.

What is the difference between PP-H-UNF and PP-H-IM?

UNF is the default condition — standard choice for general injection molding, sheet, pipe and chemical tanks where stiffness and chemical resistance matter more than low-temperature impact. IM: use where PP-H's notch and sub-zero brittleness is the limiting factor but homopolymer stiffness/cost is still wanted. Yield strength is 34 MPa in UNF versus 25 MPa in IM.

Sources

  1. ASTM D4101 — Standard Specification for Polypropylene Injection and Extrusion Materials — ASTM International (2023)
  2. ISO 19069-1/-2 — Plastics, Polypropylene (PP) moulding and extrusion materials — ISO (2019)
  3. GB/T 12670 (PP) (2008)
  4. DIN 8078 — Polypropylene (PP) pipes, general quality requirements and testing — DIN (2018)
  5. ASM Engineered Materials Handbook Vol. 2 — Engineering Plastics — ASM International (1988)
  6. CAMPUS plastics database — PP homopolymer and PP-GF datasheets — CWFG/CAMPUS (2024)
  7. Polypropylene homopolymer and glass-reinforced PP compound datasheets — LyondellBasell / Borealis / SABIC / Ensinger (2024)

Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.