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DAIP vs DAP

Polymer · grade comparison

DAIP and DAP are both polymer grades. DAIP runs hotter in service (205°C vs 180°C continuous) and DAP conducts heat better (0.5 W/m·K vs 0.42 W/m·K).

DAIPChoose it when the part sees heat.

DAIP vs DAP: properties

DAIPDAP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

11 GPa1.6 Msi
10.5 GPa1.5 Msi

Poisson's Ratio

0.34
0.32

Flexural Modulus

11.5 GPa1.7 Msi
11 GPa1.6 Msi

Izod Impact, Notched

75 J/m1.4 ft·lbf/in
40 J/m0.75 ft·lbf/in

Hardness, Rockwell M

108 HRM
110 HRM

Same in both: Tensile Strength (Ultimate) 55 MPa8 ksi · Elongation at Break 0.6% · Compressive Strength 200 MPa29 ksi · Flexural Strength 105 MPa15.2 ksi

Physical

Density and transition temperatures.

Glass Transition (Tg)

190°C374 °F
160°C320 °F

Water Absorption (24 h)

0.25%
0.2%

Water Absorption (Saturation)

0.7%
0.6%

Same in both: Density 1.8 g/cm³0.07 lb/in³

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.42 W/m·K0.24 BTU/hr·ft·°F
0.5 W/m·K0.29 BTU/hr·ft·°F

Specific Heat Capacity

1,150 J/kg·K0.27 BTU/lb·°F
1,050 J/kg·K0.25 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

30 µm/m·K16.7 µin/in·°F
25 µm/m·K13.9 µin/in·°F

Max Service Temperature (continuous)

205°C401 °F
180°C356 °F

Min Service Temperature

-65°C-85 °F
-60°C-76 °F

Heat Deflection Temp. @ 0.45 MPa

300°C572 °F
285°C545 °F

Heat Deflection Temp. @ 1.8 MPa

290°C554 °F
265°C509 °F

Limiting Oxygen Index

34%
32%

Max Service Temperature (short-term)

260°C500 °F
230°C446 °F

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

4.4
4.3

Dissipation Factor (1 MHz)

0.01
0.011

Comparative Tracking Index (CTI)

400 V
200 V

Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Strength 16 kV/mm406 V/mil · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁴ Ω

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
80 / 100

UV / Weathering Resistance

70 / 100
55 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Weldability

3 / 100
0 / 100

Formability (cold)

3 / 100
0 / 100

Mold Shrinkage

0.35%
0.4%

Processing Melt Temperature (typ.)

105°C221 °F
—

Mold Temperature (typ.)

165°C329 °F
160°C320 °F

Same in both: Machinability 40 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

180 L/kg21.6 gal/lb
—

Same in both: Embodied Energy (primary production) 105 MJ/kg45,142 BTU/lb · Embodied Carbon (primary production) 5.5 kg CO₂/kg · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

6.1 MN·m/kg
5.8 MN·m/kg

Thermal Diffusivity

0.2 mm²/s
0.3 mm²/s

Same in both: Specific Strength (UTS / density) 31 kN·m/kg · Thermal Shock Resistance Index 0

Strength versus weight

Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scale

Manufacturing and finishing

CapabilityDAIPDAP
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

DAIP vs DAP — frequently asked

What is the difference between DAIP and DAP?

DAIP and DAP are both polymer grades. DAIP runs hotter in service (205°C vs 180°C continuous) and DAP conducts heat better (0.5 W/m·K vs 0.42 W/m·K).

Which is cheaper, DAIP or DAP?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose DAIP over DAP?

Pick DAIP when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in DAIP and DAP side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.