Heat-Resistant ABS Pellets Low-emission High-Heat, High-Impact ABS

Built for hot-soak stability and tough handling—ideal for automotive armrest assemblies and mirror housings.

In automotive plastics, the failure is rarely “it melted.” It’s more subtle—and more expensive:

• an armrest frame that warps after hot-soak, creating squeaks and misalignment

• a mirror housing that creeps or deforms, changing gaps and clip engagement

• a cover that cracks at snap-fits after thermal cycling and repeated handling

• a part that passes trials but becomes unstable across seasons and batches

Heat-resistant ABS exists to reduce these failures by holding shape at elevated temperature without sacrificing impact toughness.

Yongjinhong Heat-Resistant ABS

Heat-resistant ABS is an ABS-based injection molding compound designed with a heat-stability package (to improve thermal deformation resistance and aging) and an impact-toughness strategy (to protect clips, bosses, and edges).

Default design intent for this grade:

• High temperature resistance for hot-soak environments (interior heat load + solar load near glass, exterior heat + engine bay proximity in some layouts)

• High impact strength for daily handling, vibration, and assembly stresses

• Dimensional stability for consistent gaps, fit, and reduced squeak/rattle risk

• Production stability (flow window + surface consistency for large-volume injection)

This is a practical alternative when standard ABS loses stiffness or distorts at elevated temperatures, but you don’t want to jump to higher-cost materials unless truly necessary.

Why this grade

1) Heat resistance that targets real automotive hot-soak cycles

Engineering angle: formulation focuses on improving resistance to heat-related deformation and aging; performance is part-geometry dependent.
Buyer value: fewer “summer distortion” issues, less rework after heat aging tests, and more stable assembly in long-term field use.

2) High impact that protects clips, edges, and snap features

Engineering angle: impact-toughness design helps prevent brittle failure at weld lines, snap-fits, and screw bosses—common weak points in housings.
Buyer value: less breakage during assembly, reduced returns from handling damage, stronger shipping resilience.

3) Stable processing window (less parameter chasing)

Engineering angle: controlled MFR window + additive compatibility reduces surface defects and improves repeatability across lots.
Buyer value: higher yield, smoother ramp-up, less downtime caused by cosmetic or filling issues.

Typical Applications

Automotive Armrest Box / Console Components

Armrest structures see: hot-soak + repeated load + squeak/rattle sensitivity. Heat-resistant ABS is used for frames, brackets, covers, and functional pieces that must maintain geometry and feel solid.

Rearview Mirror Housing / Mirror Cover

Mirror housings face: sun exposure, heat cycling, vibration, and outdoor knocks. This grade supports impact toughness plus heat stability to keep clip engagement, gaps, and shape consistent.

Other common automotive uses (optional extension)

• pillar trims / interior housings near glass

• small exterior housings requiring toughness

• functional covers where stable fit matters more than ultra-high gloss

Performance Target Map

Actual values depend on formulation, color, and test standard. Use as a decision framework.

If you need outdoor long-term UV + color retention, tell us—mirror housings often need a UV/weathering package depending on paint/finish strategy.

Product Options

A “heat-resistant ABS” can mean different targets. To make your ABS series easy to navigate, you can publish variants:

Suggested series variants:

• Heat-Resistant ABS – High Impact (your base): armrest + mirror general grade

• Heat-Resistant ABS – Low Warpage: larger armrest frames, long-flow parts

• Heat-Resistant ABS – UV/Weathering: mirror housings / semi-exterior use

• Heat-Resistant ABS – Color-Control: tight color tolerance for visible trims

• Heat-Resistant ABS – Thin-Wall Flow: when wall thickness is low and flow length is high

Customization knobs (OEM):

• Heat target (hot-soak stability / heat aging focus)

• Impact level (assembly + drop resistance)

• Flow tuning (thin-wall, multi-cavity stability)

• Color matching (Pantone / RAL / sample match)

• Surface goal (matte, low gloss, paint-friendly)

• Weathering package (UV if required)

• Compliance support documentation (RoHS/REACH; IMDS support if needed)

Injection Molding Guidance

Heat-resistant ABS typically processes similarly to ABS, but stability depends on controlled temperature and cooling, especially for large parts.

Practical trial setup:

• Drying: recommended to reduce splay and stabilize appearance

• Melt temperature: keep in a stable window (avoid overheating that can cause degradation/odor)

• Mold temperature: consistent across cavities to control shrink/flatness

• Injection speed: medium-to-high for weld-line quality and smooth flow

• Packing/holding: controlled and repeatable to reduce sink/warp on thicker frames

Common line issues in armrest/mirror parts

What you should provide

No customer names needed—just the engineering facts:

1. Part type: armrest frame/cover, mirror housing/cover

2. Max service temperature or test condition: hot-soak temperature/time, thermal cycling requirement (if known)

3. Wall thickness range + any thin-wall zones

4. Main failure mode today: hot warp, clip breakage, weld-line cracks, appearance marks

5. Surface requirement: paint / texture / gloss target, scratch expectations

6. Outdoor exposure (for mirror): UV exposure duration, color retention expectation

7. Molding setup (optional): hot runner/cold runner, gate constraints, multi-cavity or single

If you only have (2) hot-soak target + (4) failure mode + a part photo, that’s enough to start.