Resin
Tough Resin
Impact-resistant functional parts, housings and prototypes that must take a load.
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Material passport
Density1.1 g/cm³
Encyclopedia
Tough resin is made for parts that must withstand impact, bending, and load rather than just look good. In crack resistance and toughness it clearly beats standard resin, approaching the feel of tough thermoplastics. It is the working choice for functional resin printing.
What it is good for
- Functional parts under load and impact
- Housings, mounts, reusable snaps
- Prototypes tested for strength
- Parts with thin but strong features
Where NOT to use it
- Ultra-fine brittle miniatures — detail is a touch below standard
- High heat — use high-temp resin
- Very flexible items — use flexible resin
- Budget static decor where standard is enough
How to print
- Normal layer exposure: dialed in with a test, often close to standard
- Bottom layer exposure: 25–45 s
- Layer height: 0.03–0.05 mm
- Cure wavelength: 405 nm
- Make supports sturdier: tough resin is more viscous and pulls harder during peel
Liquid resin is toxic and a skin irritant — work in nitrile gloves in a ventilated room and avoid skin and eye contact. Wash prints in isopropyl alcohol (IPA) and always do a final UV cure: only then does the resin become safe to handle.
Washing, curing and storage
- Washing: 4–6 minutes in isopropyl alcohol (IPA)
- UV curing: moderate and even — over-curing lowers toughness
- Storage: dark, tightly sealed bottle
- Stir before printing
Tough resin reaches maximum toughness with correct, non-excessive UV curing. Over-curing makes the part stiff and brittle — the opposite effect. Do not overdo it.
Pros and cons
- High toughness and crack resistance
- Suitable for functional loaded parts
- Crumbles less than standard resin
- Machines well
- Detail slightly below standard
- More expensive than standard resin
- Over-curing lowers strength
- Same liquid-resin toxicity
FAQ
It is far more resistant to impact and cracking than brittle standard resin — the part bends or absorbs impact rather than shattering. That makes it usable for functional loaded jobs standard resin cannot do.