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Application guide

Best Plastic for Injection Molded Housings

Buyers search for the best plastic for housings when a single acronym on the drawing no longer matches drop, heat, or cosmetic targets.

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Application guide

Housings start with environment, not a resin acronym

Indoor handheld shells, wall mounts, and industrial covers rarely share one resin.

Buyers search for the best plastic for housings when a single acronym on the drawing no longer matches drop, heat, or cosmetic targets.

Best Plastic for Injection Molded Housings

ABS, polycarbonate, and PC/ABS blends cover most non-under-hood enclosures, but each shifts cost, weld line visibility, and transparency options.

Use this guide to route to a family, then open the pairwise compare pages before you lock a commercial grade on the PO.

Key facts

Housing filters

Use these filters before you lock a resin on the BOM.

  • Indoor vs outdoor exposure and UV need

  • Drop or impact expectation (qualitative)

  • Clear window or lens requirement

  • Flame filter as requirement, not molder claim

  • SPI or texture class on cosmetic faces

Routing matrix

Resin routing for housings

Qualitative routing. Confirm grades on supplier datasheets.

NeedOften routes toWhy
Lowest cost indoorABSEconomical, easy texture
Higher impact handheldPC/ABSTougher than many ABS grades
Clear window or high impactPCTransparency and toughness tradeoffs
Outdoor UVASA or UV PC alloyNot plain ABS by default

Shortlist

ABS vs PC/ABS for electronics shells

Many handhelds sit between commodity ABS and tougher PC/ABS.

ABS

  • Lower resin cost
  • Good for indoor textures
  • Weaker drop on thin walls

PC/ABS

  • Better impact on thin ribs
  • Common for handhelds
  • Higher cost than ABS

BOM shortlist

Shortlist on your BOM

Move from environment to a resin family, then to a commercial grade.

  1. 1

    List environment

    Indoor, outdoor, or brief heat.

  2. 2

    Mark cosmetic class

    Gloss, texture, or painted.

  3. 3

    Pick two families

    For example ABS and PC/ABS.

  4. 4

    Open compare pages

    Validate pairwise tradeoffs.

  5. 5

    Write commercial grade

    Supplier suffix on PO.

FAQ

FAQ

Is PC always better than ABS?

PC wins impact and heat; ABS wins cost on indoor parts.

Can I mold PC/ABS in an ABS mold?

Only after shrink and warp validation.

Who picks flame grades?

Buyer specifies filter; supplier grade carries listing data.

Related guides

Compare pages, materials, and industries

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Next step

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