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In stock
In every order
- Lot-matched pellets genuine DualPoly 20GF glass-filled PP, sealed 2 lb unit
- Processing sheet drying, melt/mold and back-pressure settings
Materials, Other 3D Printing Materials, Other Equipment, Plastic Injection Molding Machine, Plastic Pellets
Polypropylene (PP) 20 Glass Filled Black Pellets DualPoly - 2 lbs
20% glass reinforced PP pellets. Offers high strength and is a cost-effective alternative to ABS. Ideal for automotive and lawn & garden equipment.
Price is for a 2-lb unit. Minimum order: 5 units (10 lbs total).
$50
Price held 7 days after order.
NDA standard
Ships in 1–2 business days
What your process engineer actually checks
What your process engineer actually checks
Structural strength at PP pricing
DualPoly 20GF is a 20% glass-fiber PP copolymer: markedly higher strength, stiffness, and heat resistance than unfilled PP, at a lower cost than ABS or nylon. Every unit ships with drying and molding parameters so structural parts stay dimensionally consistent.
A materials engineer on the line
Questions on glass-fiber wear on tooling, drying, warpage, or grade selection? A materials engineer answers directly — not a contact-form bot. Most replies in under 4 hours, NDA standard.
About this product
PP 20% Glass-Filled (DualPoly 20GF) is a 20% glass-fiber reinforced polypropylene copolymer for injection molding — significantly higher strength, stiffness, and heat resistance than unfilled PP, at a lower cost than ABS or nylon for structural parts.
Why engineers choose PP 20GF
Glass-reinforced polypropylene that carries load without the price of an engineering resin.
20% glass reinforcement
Higher strength, stiffness, and heat resistance than standard PP — 46.9 MPa tensile yield for structural parts.
Cost-effective ABS alternative
Engineering-grade stiffness and strength at polypropylene pricing — a straight cost-down from ABS or nylon.
Lightweight
Lower density (1.02 g/cm³) than most engineering thermoplastics, so parts stay light without giving up rigidity.
Chemical resistance
Inherits polypropylene’s solid resistance to solvents, acids, and bases for parts exposed to shop chemicals.
How we supply it
Genuine resin, ready to mold, with the parameters your process engineer needs.
Step 01
Sourced & lot-traced
Genuine DualPoly 20GF glass-filled PP, packed in sealed 2 lb units and shipped from US stock. Minimum order 5 units.
Step 02
Dry before you mold
Dry 2–4 h at 82°C (180°F) to below 0.20% moisture for a clean surface and full glass-fiber performance.
Step 03
Molding parameters included
Melt 191–232°C (375–450°F), mold 32–71°C (90–160°F), back pressure 25–100 psi.
Typical applications
Structural parts where strength, stiffness, and cost all matter.
Automotive components
Under-hood, brackets, shrouds
Lawn & garden
Housings & structures
Consumer goods
Durable housings & tools
Industrial parts
Strong, stiff, light
Structural brackets
Load-bearing components
ABS replacement
Cost-down projects
Processing parameters (injection molding)
| Parameter | Setting |
|---|---|
| Melt temperature | 191–232°C (375–450°F) |
| Mold temperature | 32–71°C (90–160°F) |
| Drying | 2–4 h at 82°C (180°F) |
| Back pressure | 25–100 psi (0.17–0.69 MPa) |
Full mechanical properties (tensile yield, IZOD impact, density) are listed in the Specifications tab below.
Not sure PP 20GF is the right grade?
Compare it with other APSX injection-molding pellets we stock.
Tell us your part — load, stiffness target, and whether you’re replacing ABS — and a materials engineer will confirm whether PP 20GF or another grade is the right fit. Sub-4h reply, NDA standard.
Why source pellets through Additive Plus
- Injection-molding feedstock, ready to run — genuine grades matched to the APSX-PIM and standard molders, packed in convenient 2 lb units.
- US stock, fast dispatch — ships in 1–2 business days; no overseas lead times on material.
- Engineer on the line — drying schedules, parameters, and grade selection from a team that molds these materials, not a call center.
| Brand | APSX |
| Country of origin | USA |
| Platform | Injection Molding |
| Solid Density g/cm3 | 1.02 |
| Tensile Strength at Yield MPa | 46.9 |
| IZOD Impact (Notched, J/m) | 110 |
| Melt Temperature °C | 191–232 (375–450°F) |
Need a different grade or color?
We stock 20+ injection-molding grades — PP, PC, acetal, TPE, TPO and glass-filled compounds — and can match a resin to your part and machine. Custom colors and volume packs available.
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· 2 Business DaysFrom teams molding structural PP
Unedited feedback from injection-molding shops.
★★★★★
Swapped an ABS bracket to 20GF and cut material cost without losing stiffness — stronger under load, honestly.
GN
Greg N. Mechanical Engineer · Power equipment
★★★★★
Fan shroud held its shape near the engine bay where unfilled PP would sag. Molded clean once dried.
SL
Sara L. Product Engineer · Automotive
★★★★★
Good-value glass-filled grade for structural housings. Consistent from bag to bag.
OD
Owen D. Manufacturing Engineer · Industrial
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
Do I need to dry PP 20GF before molding?
Yes. Dry PP 20GF for 2–4 hours at 82°C (180°F) to below 0.20% moisture before molding. While polypropylene itself absorbs little water, the glass-fiber and additive package benefits from drying for a clean surface and full mechanical performance. Each 2 lb unit ships with the recommended parameters.
What melt and mold temperatures does PP 20GF need?
PP 20GF molds at a melt temperature of 191–232°C (375–450°F) with a mold temperature of 32–71°C (90–160°F) and back pressure of 25–100 psi. Adequate back pressure helps disperse the glass fiber evenly. These are starting points — a materials engineer can help tune them for your part.
What is PP 20% Glass-Filled used for?
PP 20GF suits structural parts: automotive under-hood components, brackets and fan shrouds, lawn and garden equipment, durable consumer housings and tools, and industrial parts that need to be strong, stiff, and light. It is often chosen as a cost-effective replacement for ABS or nylon.
How is glass-filled PP different from standard polypropylene?
The 20% glass fiber in PP 20GF raises strength, stiffness, and heat resistance well above unfilled PP, which is why it replaces more expensive engineering resins in structural parts. The trade-offs are slightly higher brittleness and abrasive wear on tooling, so hardened screws and barrels are recommended for high volume.
How is PP 20GF packaged and what is the minimum order?
PP 20GF ships in sealed 2 lb units, and the minimum order is 5 units (10 lbs total). Larger volumes and official purchase orders are welcome — contact us for volume pricing. Material ships from US stock, typically within 1–2 business days.
Will PP 20GF run on the APSX-PIM desktop molder?
Yes. PP 20GF is formulated for desktop and standard injection molding, including the APSX-PIM. Because the glass fiber is mildly abrasive, hardened machine components extend life on longer runs. Our team can confirm shot size and parameters for your specific mold.
Is PP 20GF really cheaper than ABS?
For structural parts, yes — PP 20GF delivers stiffness and strength comparable to or exceeding many ABS applications at polypropylene pricing, which is why teams use it for cost-down projects. It also adds chemical resistance ABS lacks. A materials engineer can confirm it fits your load case.
Place your order, or talk to an engineer first
Order Polypropylene (PP) 20 Glass Filled Black Pellets DualPoly - 2 lbs direct, or talk to materials engineer