Best Uses: Indoor automotive accessories (tool organization, auto-themed coasters, phone holders)

🧰 INDOOR AUTO ACCESSORIES

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
PLA	2750 MPa	Up to 134° F	Low	Low	Optional	$20 (1kg roll)
PETG	2050 MPa	Up to 156° F	High	Medium	Recommended	$20 (1kg roll)

Best Uses (Moderate heat): interior dash parts, radio delete plates, cluster gauges, interior accessories

🧭 INTERIOR CAR PARTS (Moderate)

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
PETG	2050 MPa	Up to 156° F	High	Medium	Recommended	$20 (1kg roll)
PETG-CF	2910 MPa	Up to 165° F	High	Medium	Optional	$32 (1kg roll)

Best Uses (Extreme heat): interior parts exposed to high solar load/black dashboards

🧭 INTERIOR CAR PARTS (Extreme)

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
ABS	1880 MPa	Up to 212° F	High	Medium	Optional	$20 (1kg roll)
ABS-GF	2860 MPa	Up to 230° F	High	Meduim	Optional	$30 (1kg roll)
ASA	1920 MPa	Up to 212° F	High	High	Optional	$30 (1kg roll)
ASA-CF	3740 MPa	Up to 230° F	High	High	Optional	$37 (1kg roll)

Best Uses (Extreme heat + UV): exterior trim, flaps, mounts, fender flares, plastic replacements

🌤️ EXTERIOR CAR PARTS

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
ASA	1920 MPa	Up to 212° F	High	High	Optional	$30 (1kg roll)
ASA-CF	3740 MPa	Up to 230° F	High	High	Optional	$37 (1kg roll)

Best Uses (Moderate engine bay heat): hose clamps, fuse box covers, plastic replacements

🔧 ENGINE BAY CAR PARTS (Moderate)

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
PC	2310 MPa	Up to 442° F	Medium	Medium	Required	$40 (1kg roll)

Best Uses (High engine bay heat): intake-adjacent and cylinder-head-adjacent plastics

🔧 ENGINE BAY CAR PARTS (High)

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
PA6-GF	3670 MPa	Up to 359° F	Medium	High	Required	$60 (1kg roll)
PA6-CF	5460 MPa	Up to 366° F	Medium	High	Required	$80 (1kg roll)
PAHT-CF	4230 MPa	Up to 381° F	High	High	Required	$95 (1kg roll)

Best Uses (Extreme engine heat): components mounted to valve cover/intake manifold

🔧 ENGINE BAY CAR PARTS (Extreme)

Filament	Stiffness	Heat Resistance	Water Resistance	UV Resistance	Dry Before Print	Avg. Cost
PET-CF	5320 MPa	Up to 401° F	Medium	High	Required	$85 (1kg roll)
PPA-CF	9860 MPa	Up to 440° F	Medium	High	Required	$150 (.75kg)
PPS-CF	7160 MPa	Up to 507° F	High	High	Required	$130 (.75kg)