🏆 Made in Taiwan · The Engineer's Choice for Functional Prototyping
QTS PP-Like Tough Flexible Resin
Real Toughness for Digital Design, Perfect Answer for Functional Prototypes
Simulates Polypropylene PP Core Properties · Tough & Flexible · Low-Friction Self-Lubricating
Optical-grade clarity achievable after sanding & clear coating — rivaling injection-molded acrylic
20~25 MPa
Tensile Strength
200~300 cps
Ultra-Low Viscosity
Four Core Advantages
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Real Toughness & Flex Resistance
40% elongation at break — printed parts withstand repeated bending, compression, and impact without brittle fracture. The ideal choice for validating snap-fit designs and testing living hinge durability.
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Exceptional Optical Clarity Potential
After wet sanding (400→2000 grit) + clear coat spray, achieves optical-grade transparency rivaling injection-molded acrylic. Not just structural parts — also excels as transparent housings, light guides, and fluid observation windows.
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Low-Friction Smooth Surface
Simulates PP's self-lubricating properties, ideal for parts requiring smooth sliding or precise fit — reducing prototype wear during dynamic testing for results closer to real product performance.
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Ultra-Low Viscosity, Easy to Use
200~300 cps ultra-low viscosity ensures rapid resin flow to fill complex model details, while making post-print cleaning simpler and more efficient — significantly reducing operational difficulty.
What is PP-Like? Why Do Engineers Need It?
Polypropylene (PP) is one of the most widely used engineering plastics in industry, renowned for its excellent toughness, flex resistance, and low friction coefficient. However, traditional PP cannot be directly used in photopolymer 3D printing.
QTS PP-Like Resin uses precision formulation to perfectly replicate PP's core properties of toughness, flex resistance, and low friction — letting you use 3D printing efficiency and precision to create functional prototypes truly suitable for testing. This is exactly what traditional rigid resins cannot achieve.
Limitations of Standard Rigid Resin
- High brittleness — snaps on bending
- Cannot create living hinge structures
- Snap fits fail after repeated use
- Cannot simulate PP/PE engineering plastic properties
QTS PP-Like Breakthrough
- 40% elongation — tough, won't snap
- One-piece living hinge structures possible
- Snap fits survive repeated cycling
- Precisely simulates PP engineering plastic properties
Core Application Areas
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Snap Fits & Buckles
Create repeatedly-opening snap fits, buckles, and container lids — validate snap design reliability and service life
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Living Hinges
Print one-piece living hinge structures for real flex testing — validate hinge durability and cycle life
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Transparent Housings & Light Guides
Create transparent housings, covers, and light guides for internal structure inspection — optical clarity after sanding
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Impact-Resistant Functional Parts
Jigs, fixtures, or any parts requiring impact and compression resistance — tough without brittleness
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Fluid Observation Windows
Create transparent flow channels and fluid observation windows combining transparency with pressure-resistant toughness
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Packaging & Container Prototypes
Simulate PP packaging boxes, container lids, and bottle cap prototypes for rapid design validation
Full Technical Specifications
| Specification |
Value / Description |
Test Method |
| Technology |
LCD / DLP / SLA 3D Printing |
— |
| Wavelength |
395~405 nm |
— |
| Shore Hardness |
66~70D (PP-like engineering plastic) |
ASTM D2240 |
| Elongation at Break |
40% (tough & flex-resistant) |
ASTM D638 |
| Tensile Strength |
20~25 MPa |
ASTM D638 |
| Viscosity @25°C |
200~300 cps (ultra-low viscosity) |
ASTM D2196 |
| Color |
Clear (Transparent) |
— |
| Volume |
500g |
— |
| Light Source Compatibility |
395~405 nm LCD / DLP / SLA |
— |
| Origin |
Taiwan R&D & Manufactured |
— |
How to Use — Best Practices
1
Shake Well
Gently shake the bottle for 30~60 seconds before use to ensure the resin is thoroughly mixed. Avoid vigorous shaking to prevent air bubbles.
2
Post-Print Cleaning
Use 95% alcohol, IPA (isopropyl alcohol), or Magic Wash Plus dedicated cleaning solution to clean the printed model and remove residual resin. Rinse with water and blow dry.
3
UV Post-Curing (Critical Step)
For optimal toughness, place the cleaned and dried model in a UV curing station. Cure front side for 20 minutes, then flip and cure back side for 20 minutes. Thorough post-curing is the key to PP-Like achieving maximum toughness.
Optional Advanced Step Achieve Optical-Grade Clarity
Want PP-Like prints to achieve optical transparency rivaling injection-molded acrylic? Just four steps:
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800 Grit
Medium smoothing
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1200→2000 Grit
Wet polishing
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Spray high-quality
clear coat
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Pro Tip: Wet sanding outperforms dry sanding. Sand each grit thoroughly until no visible scratches remain before moving to the next. For the final clear coat, automotive-grade or model-grade high-quality products deliver the best results.
PP-Like vs Competitor Comparison
| Comparison | QTS PP-Like | Standard Rigid Resin | Real PP Injection Molding |
| Flex Resistance | ✅ 40% elongation, tough | ❌ High brittleness, snaps | ✅ Excellent |
| Living Hinge Feasibility | ✅ Fully supported | ❌ Not possible | ✅ Supported |
| Optical Clarity Upgrade | ✅ Rivals acrylic after sanding | ⚠️ Partially achievable | ❌ Requires injection mold |
| 3D Printing Compatibility | ✅ All 405nm printers | ✅ Compatible | ❌ Cannot 3D print |
| Low-Friction Self-Lubricating | ✅ Simulates PP properties | ❌ No such property | ✅ Excellent |
| Made in Taiwan | ✅ Yes | ❌ Mostly imported | ⚠️ Varies by brand |
Printer Compatibility
Compatible with all 405nm light source LCD / DLP / SLA 3D printers, including but not limited to:
Phrozen Anycubic Elegoo Creality Bambu Lab Formlabs Peopoly SparkMaker & All 405nm Printers
Frequently Asked Questions
What's the difference between PP-Like and the Flex series?
PP-Like (Shore 66~70D) is harder than the Flex series, closer to engineering plastic rigidity, while maintaining 40% elongation at break. It's ideal for functional parts requiring "tough yet flexible" performance like snap fits and living hinges. The Flex series (Shore 57A~85A) is softer, suited for applications requiring large elastic deformation like shoe soles and seals.
How thin can a living hinge be printed?
We recommend living hinge minimum thickness of 0.4~0.6mm to ensure sufficient strength and durability. Consider the hinge's bending radius in design to avoid stress concentration from overly sharp fold angles. Start with thicker dimensions (0.8~1.0mm) for initial testing, then adjust based on results.
How long does the transparency last after sanding?
The transparency achieved after sanding + clear coat is quite durable. We recommend UV-stabilized clear coat to effectively delay yellowing. Avoid prolonged exposure to intense UV light. For indoor display or functional testing, the transparent effect can last for years.
Is PP-Like suitable for food-contact containers?
PP-Like resin has not been certified for food contact safety and is not recommended for containers or utensils in direct contact with food. For food-contact applications, please consult the QTS technical team for suitable alternative materials.
Does insufficient post-curing affect toughness?
Yes, post-curing time significantly affects PP-Like toughness. Insufficiently post-cured parts have reduced toughness and are more prone to brittle fracture; over-curing may make parts harder with reduced elongation. Strictly follow the recommended 20 minutes per side for optimal PP-like toughness performance.
Safety & Storage
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Personal Protection
Wear gloves, safety goggles, and protective clothing when handling. Wash hands with soap after use.
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Ventilated Environment
Use in a well-ventilated environment. Avoid prolonged inhalation of volatile gases.
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Storage Conditions
Store sealed at 15~35°C in a cool, dry place away from direct sunlight. Filter and store separately after use.
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Disposal
Do not pour liquid resin directly. Fully cure waste resin to solid under UV light before disposing as general waste.
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Keep Away from Children
Store safely out of reach of infants and young children.
Why QTS? A Professional Commitment from Taiwan
Bambu Lab Taiwan Official Distributor · 15+ Years Industry Experience · Professional Material R&D
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100% Taiwan R&D & Manufactured
From formula design and raw material selection to production, all completed in Taiwan. Strict quality standards eliminate color variation and performance inconsistency.
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15+ Years of Industry Trust
Over 15 years in Taiwan's 3D printing industry, serving 8,000+ customers — from individual creators to large enterprises.
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Universal Compatibility
Extensively tested across multiple brands and models. Compatible with all 405nm LCD/DLP/SLA 3D printers on the market.
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Expert Technical Support
From parameter settings and slicing tips to post-processing advice, we share hands-on experience to help you overcome challenges.
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Low Odor, Low Irritation Formula
Dedicated to developing low-odor, low-irritation formulas that are easy to clean, making your creative process more comfortable and safe.
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Transparent Shopping Experience
All prices include tax with official receipts included — clear and guaranteed for both personal and corporate purchasing.
QTS PP-Like Tough Flexible Resin · Clear · 500g · Taiwan R&D & Manufactured · Compatible with All 405nm Printers
© QTS · shop.qts.tw
