Typical property ranges for the resins molders buy most, in one place. Each grade below has its own page with metric and US units, test methods, processing and drying temperatures, and what changes the numbers.
Property pages by grade
Resin properties chart
| Resin | Density (g/cm³) | Tensile (MPa) | Flex modulus (GPa) | HDT 1.8 MPa (°C) | Water, 24 h |
|---|---|---|---|---|---|
| PP homopolymer | 0.90–0.91 | 31–37 | 1.2–1.8 | 50–60 | 0.01–0.03% |
| PP impact copolymer | 0.90–0.91 | 20–28 | 0.9–1.4 | 45–55 | 0.01–0.03% |
| HDPE | 0.940–0.965 | 20–32 | 0.8–1.5 | 40–55 | 0.005–0.010% |
| LDPE | 0.915–0.930 | 8–15 | 0.1–0.3 | n/a | 0.005–0.010% |
| LLDPE | 0.915–0.940 | 10–25 | 0.2–0.6 | n/a | 0.005–0.010% |
| Polystyrene (GPPS) | 1.04–1.05 | 35–50 | 3.0–3.3 | 75–90 | 0.03–0.10% |
| HIPS | 1.03–1.05 | 18–30 | 1.6–2.4 | 70–85 | 0.05–0.10% |
| ABS | 1.03–1.07 | 35–50 | 2.0–2.6 | 80–100 | 0.20–0.40% |
| ASA | 1.05–1.08 | 35–50 | 1.9–2.5 | 80–95 | 0.20–0.40% |
| SAN | 1.07–1.08 | 65–80 | 3.4–3.8 | 90–100 | 0.15–0.30% |
| Polycarbonate (PC) | ~1.20 | 60–70 | 2.2–2.5 | 124–132 | 0.12–0.15% |
| PC/ABS | 1.10–1.20 | 45–60 | 2.0–2.6 | 85–110 | 0.20–0.30% |
| Acrylic (PMMA) | 1.18–1.19 | 60–75 | 2.9–3.3 | 85–100 | 0.20–0.40% |
| Nylon 6 (PA6) | ~1.13 | 70–85 | 2.4–2.9 | 55–65 | 1.30–1.90% |
| Nylon 66 (PA66) | ~1.14 | 75–90 | 2.6–3.0 | 70–90 | 1.00–1.50% |
| Nylon 6, 30% glass | 1.35–1.37 | 150–185 | 8.0–9.5 | 200–210 | 0.90–1.20% |
| Nylon 66, 30% glass | 1.37–1.39 | 170–200 | 8.5–10.0 | 235–250 | 0.70–1.00% |
| Acetal copolymer (POM) | ~1.41 | 60–65 | 2.5–2.8 | 95–110 | 0.20–0.22% |
| Acetal homopolymer (POM) | ~1.42 | 68–75 | 2.8–3.1 | 110–125 | ~0.25% |
| PBT, unfilled | 1.30–1.31 | 50–60 | 2.3–2.6 | 55–65 | 0.08–0.10% |
| PBT, 30% glass | 1.52–1.54 | 120–140 | 8.0–9.5 | 200–210 | 0.06–0.08% |
| PET, 30% glass | 1.56–1.58 | 140–160 | 9.0–10.5 | 220–230 | 0.05–0.10% |
| PPS, 40% glass | 1.65–1.68 | 150–200 | 13.0–15.0 | 260–270 | 0.02–0.05% |
| PEI | ~1.27 | 100–110 | 3.3–3.5 | 195–205 | ~0.25% |
| PEEK, unfilled | 1.30–1.32 | 95–100 | 3.7–4.1 | 150–160 | ~0.10% |
| Polysulfone (PSU) | ~1.24 | 70–75 | 2.6–2.8 | 170–175 | 0.20–0.30% |
| Modified PPE | 1.04–1.10 | 45–65 | 2.2–2.6 | 85–150 | 0.06–0.10% |
| Rigid PVC | 1.35–1.45 | 40–50 | 2.4–3.0 | 60–75 | 0.04–0.40% |
| PVDF | 1.76–1.78 | 40–55 | 1.7–2.4 | 85–115 | 0.03–0.04% |
Typical ranges for standard grades, dry as molded. HDT is heat deflection temperature at 1.8 MPa (264 psi). For side-by-side comparisons with impact, cost and chemical resistance, use the resin comparison tool.
Common questions
Where do these property values come from?
They are typical ranges for standard grades, pulled from published data sheets across several producers. Individual grades can fall outside them, so use your grade’s data sheet for design and the lot COA to check what you received.
Why do two data sheets for the same resin show different numbers?
Different test methods (ASTM vs. ISO), specimen sizes and conditioning (dry vs. conditioned for nylon) all move the numbers. Compare grades on the same method. See how to read a resin data sheet.
Can you find a grade that matches my data sheet?
Yes. Send the data sheet and a polymer chemist will quote that grade or a close equivalent.
Tell us the grade you run now
A polymer chemist reviews every request, then matches your grade or finds a qualified equivalent and prices it.
What to send for an accurate quote
- The grade name, from any supplier, or a data sheet
- Color (natural, black or a custom match)
- Fill type and percentage, if any
- Melt flow, if you know it
- Quantity for this order and what you use in a year
- Ship-to city and state or province