Formlabs Castable Wax 40 Resin (Form 4) — 1 L

A 40% wax-filled casting resin built for the high-speed Form 4 ecosystem — ideal for printing highly detailed investment casting patterns with low expansion and clean burnout.

Formlabs Castable Wax 40 Resin cartridge
Application: Investment casting patterns
Technology: SLA / LFD
Wax-filled: 40%
Pack size: 1 L
Compatible: Form 4 Series

Workflow note: Wash thoroughly, dry completely, then follow the recommended burnout schedule for best results. No post-curing is required for standard casting workflows.

Wax-like handling, low expansion, and clean burnout for demanding cast patterns

Castable Wax 40 Resin is a 40% wax-filled material designed to help you move from traditional wax workflows to digital printing while keeping the qualities casters care about: fine detail, low expansion, and clean burnout.

Built for the Form 4 ecosystem, it supports a wide range of casting conditions and gypsum investments — making it a strong choice for medium-to-heavy jewellery and complex geometries where expansion-related defects can ruin a flask.

Authorised Formlabs Reseller
Use-case: Lost-wax investment casting

Why Choose Castable Wax 40 Resin?

Low Expansion, Cleaner Casts

Engineered to minimise expansion-related defects in demanding patterns, helping you maintain crisp detail through investment and burnout.

Wide Casting Compatibility

Supports a broad range of casting conditions and is compatible with leading gypsum investments for reliable, repeatable results.

Wax-like Handling

A high wax fill delivers familiar handling characteristics for finishing and prep, bridging the gap between traditional wax and digital printing.

Efficient Workflow

Wash, dry, invest, and burn out — no post-curing required for standard jewellery pattern workflows when following the recommended guide.

Applications

Castable Wax 40 is designed for production-quality jewellery patterns and other investment casting patterns where detail, surface finish, and predictable burnout matter.

Consider Castable Wax 40 for:

  • Heavy signet and class rings
  • Pendants and medallions
  • Custom bridal jewellery
  • Difficult-to-cast features such as engraved text, stone holes, and channels

Print resolutions: Supports 25 µm and 50 µm layer settings (printer/material preset dependent).

Material Properties

Property Value
Wax content 40% wax-filled
Temperature @ 5% mass loss (TGA) 249 °C
Ash content (TGA) 0.0 – 0.1%

*Note: Properties can vary based on geometry, orientation, settings, and processing. For casting success, prioritise validated cleaning and burnout steps.

Workflow Overview

Castable Wax 40 follows a print → wash → dry → invest → burnout → cast workflow. For reliable burnout and detail preservation, follow the recommended burnout guide.

  • Print using the Castable Wax 40 preset for your printer and chosen layer height.
  • Wash in IPA for 10 minutes, then rinse 5 minutes in a second cleaner IPA bath.
  • Dry fully (compressed air recommended) before investing.
  • No post-curing required for standard jewellery pattern workflows.
  • Burnout using the Castable Wax 40 schedule (includes controlled ramps/holds to protect the investment and preserve detail).

Tip: Thick-walled patterns and aggressive heating can increase the chance of investment cracking — use the recommended schedule and match it to your investment type and part geometry.

FAQ

1) What is Castable Wax 40 Resin used for?

Investment casting patterns — especially medium-to-heavy jewellery and challenging details like engraved text, stone holes, and channels.

2) Do I need to post-cure parts?

Typically no — for casting patterns, follow the wash + dry guidance and proceed to investment and burnout per the guide.

3) What’s the most important step for reliable casting?

Thorough cleaning and fully drying the pattern, then using the validated burnout schedule matched to your investment and geometry.

(70788)

SKU 70788
Brand Formlabs
Shipping Weight 1.5000kg
Shipping Width 0.102m
Shipping Height 0.089m
Shipping Length 0.286m

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