Tough Resin is a 3D printing resin designed to withstand tensile forces up to 48 MPa. It features a sharp matte finish, scratch resistance, and some flexibility without becoming brittle. It is suitable for engineering prototypes, functional parts, and practical applications that require greater strength than standard resins.

When Ordinary Resin is No Longer Enough

In resin 3D printing, a common problem users encounter is the brittleness of printed parts — they look beautiful but break instantly when subjected to impact or bending. This issue arises from using general-purpose resins that prioritize detail over strength.

Tough Resin is the answer for applications requiring both detail and strength. This Functional & Engineering resin has a specially developed polymer formula designed to handle real-world challenges, whether for prototypes, mounting parts, or production line tools.

Key Features That Make Tough Resin Stand Out

Tensile Strength 48 MPa

A tensile strength of 48 MPa means the part can withstand high pulling and compressive forces without breaking. Compared to general resins, which typically range from 30–40 MPa, this difference is crucial for parts that bear real loads, such as covers, levers, or interlocking components.

Shore D Hardness 84 — Scratch Resistant

A Shore D hardness of 84 indicates a high surface hardness, making the part resistant to daily scratches and abrasions. This ensures the printed object maintains its aesthetic appearance even after prolonged use.

High-Resolution Matte Surface

Unlike general resins that produce a glossy finish, Tough Resin delivers a professional-looking, sharp matte finish without the need for additional painting. This is ideal for parts that require both aesthetics and functionality.

Some Flexibility — Not Brittle

Tough Resin is designed to have slight flexibility. Parts will return to their original shape when gently bent or twisted, rather than breaking immediately. This property is crucial for components subjected to vibrations or repeated pressure.

Low Odor, Easy to Use

Many resins have a pungent odor during printing. Tough Resin has been formulated to have a lower odor than usual, making it suitable for use in homes, classrooms, or areas with limited ventilation.

Which Printers Can It Be Used With?

Tough Resin supports three main types of resin 3D printers:

• LCD (MSLA) — Popular printers for general users, such as Anycubic Photon, Elegoo Saturn
• SLA — Professional-grade laser-based printers, offering very high resolution
• DLP — Projector-based systems, offering fast and consistent printing

It covers wavelengths of 385–405 nm, which is the standard for most resin printers on the market today.

Recommended Print Settings

These values are a good starting point and should be adjusted based on your specific printer and LCD screen model:

Parameter	Recommended Value
Layer Height	0.05 mm
Bottom Layer Count	5–10 layers
Bottom Exposure (Mono LCD)	20–50 seconds
Normal Exposure (Mono LCD)	2–5 seconds
Bottom Exposure (RGB LCD)	40–100 seconds
Normal Exposure (RGB LCD)	4–10 seconds

Post-Processing Steps After Printing

Washing

• Soak in IPA (Isopropyl Alcohol) for 5 minutes
• Use a soft brush to remove excess resin from small details
• An Ultrasonic Cleaner is recommended for best results
• Do not soak longer than specified, as it may cause the part to swell

UV Curing

• Cure under UV light for 5 minutes without heat
• This is sufficient to eliminate surface stickiness
• For maximum strength, curing can be extended

Applications Suitable for Tough Resin

Tough Resin excels in these types of applications:

• Engineering prototypes that require real-world functional testing before mass production
• Jigs and Fixtures for production lines that undergo repeated stress
• Automotive parts such as cable clamps, covers, and mounting brackets
• Cosplay props that need more durability than general resins
• DIY and educational projects for those seeking cost-effective yet high-quality materials
• Repair and replacement parts that require long-term durability

Tough Resin vs. Standard Resin Comparison

Feature	Standard Resin	Tough Resin
Tensile Strength (MPa)	~30–40	48
Shore D Hardness	~70–75	84
Scratch Resistance	Moderate	Very Good
Flexibility	Low (Brittle)	Some Flexibility
Surface Finish	Glossy	Sharp Matte
Odor	Moderately Pungent	Lower

Special Service: Color on Demand

For projects requiring specific colors, Inslogic offers Color on Demand — simply provide a Pantone or HEX code to order Tough Resin in your desired color. We also support Bulk Orders for purchases of 20 kg or more, ideal for businesses or studios that need color consistency in production.

Conclusion: A Resin Strong Enough for Real-World Applications

Tough Resin is the perfect choice for 3D printers looking to overcome the limitations of general-purpose resins. With 48 MPa tensile strength, a high-quality matte finish, Shore D 84 hardness, and lower odor, Tough Resin is a versatile and cost-effective option for beginners who want durable parts, expert technicians who need high-quality prototypes, and designers seeking a resin that delivers both aesthetics and strength in one bottle.

Tags

3d printing DLP engineering resin functional resin LCD resin SLA tough resin

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