QTS TPU 90A 3D Printing Filament (1.75mm) - Balanced Flexibility & Strength | Easier & Faster to Print | For Functional Flexible Parts

QTS TPU 90A offers the perfect balance of flexibility and strength. High abrasion resistance and easy printability on both Direct Drive and Bowden systems make it the top choice for durable, functional parts.

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QTS TPU 90A High Elasticity Flexible Filament | Professional 3D Printing Material | Taiwan Brand

🚀 QTS TPU 90A High Elasticity Flexible Filament

Name: QTS TPU 90A 3D Printing Filament (1.75mm) - Balanced Flexibility & Strength | Easier & Faster to Print | For Functional Flexible Parts
SKU: 68de2ba21f680c0018e7abfd
Price: 530.0 TWD
Availability: InStock

Professional 3D Printing Material | Taiwan Brand | 15+ Years Experience | 8000+ Trusted Customers

Product Introduction

QTS TPU 90A High Elasticity Flexible Filament is a 3D printing material specifically designed for functionality and durability, featuring a Shore hardness of 90A that balances flexibility with excellent structural strength. Made from high-quality Thermoplastic Polyurethane, this material boasts wear resistance, high tensile strength, and superior tear strength, making it the premier choice for manufacturing durable and elastic components.

Compared to TPU 85A, TPU 90A provides higher hardness and structural strength while maintaining excellent elasticity and wear resistance. Its elongation at break of over 800% ensures that parts remain intact even under extreme conditions, making it an ideal choice for industrial-grade applications.

🎯 6 Core Advantages

1️⃣ High Elasticity & Flexibility (Shore 90A)

QTS TPU 90A utilizes high-quality thermoplastic polyurethane with a Shore hardness of 90A, providing outstanding elasticity and flexibility. Unlike traditional rigid plastics, TPU 90A can quickly return to its original shape when subjected to impact or pressure without permanent deformation. This unique elastic property makes it an ideal choice for creating anti-slip grips, flexible joints, and wearable accessories. Whether for daily use or extreme environments, TPU 90A delivers stable performance.

2️⃣ Wear & Tear Resistance

TPU 90A features a high tear strength of 220-240 N/mm and a tensile strength of 32 Mpa, allowing it to perform exceptionally well in environments with frequent friction or stress. The material's molecular structure design ensures long-term wear resistance, maintaining product integrity and functionality even in high-wear applications. Whether producing industrial gaskets, wear-resistant grips, or high-frequency use parts, TPU 90A provides an ultra-long service life, significantly reducing replacement costs.

3️⃣ Excellent Impact Resistance

The elongation at break of over 800% gives TPU 90A exceptional impact resistance capabilities. When subjected to sudden impacts or external forces, the material can absorb energy and release it gradually, effectively protecting internal structures. This characteristic makes TPU 90A the perfect choice for creating shock-absorbing mounts, protective covers, and vibration-dampening parts. Compared to rigid plastics that easily crack, TPU 90A remains intact under extreme conditions, extending product lifespan and enhancing user experience.

4️⃣ Oil & Low-Temperature Resistance

TPU 90A exhibits excellent oil resistance, allowing it to be used long-term in oily environments without softening or swelling. Additionally, the material's glass transition temperature is -30°C, enabling it to maintain good elasticity and strength even in low-temperature environments. These properties make TPU 90A an ideal choice for industrial machinery parts, automotive components, and outdoor equipment. It operates stably whether in high-temperature oily environments or cold regions.

5️⃣ Print Stability & Compatibility

QTS TPU 90A undergoes strict quality control to ensure consistency and stability in every batch. The material is designed to be compatible with all mainstream FDM 3D printers, including both direct drive and Bowden extrusion systems. It resists jamming and filament breakage during printing, significantly improving print success rates. Whether you are using an industrial-grade printer or a desktop model, QTS TPU 90A provides a stable and reliable printing experience.

6️⃣ Taiwan Brand Manufacturing, Quality Assured

QTS has over 15 years of experience in manufacturing 3D printing materials and has earned the trust of more than 8,000 customers, including corporate clients, schools, and individual users. All products undergo rigorous quality testing to ensure every batch meets international standards. We are committed to providing global users with the highest quality 3D printing materials and professional technical support. Choosing QTS means choosing quality and trust.

📋 Complete Product Specifications

Specification	Test Method	Unit	Value
Hardness	ASTM D2204	ShoreA	90
Density	ASTM D955	g/cm³	1.21
100% Modulus	ASTM D785	Mpa(kgf/cm²)	12
300% Modulus	ASTM D570	Mpa(kgf/cm²)	24
Tensile Strength	ASTM D638	Mpa(kgf/cm²)	32
Elongation at Break	ASTM D638	%	≥800 (550 Base)
Tear Strength	ASTM D638	N/mm	220-240
Processing Temperature	ASTM D790	°C	220-240
Glass Transition Temp	ASTM D790	°C	-30

Recommended Print Parameters

Parameter	Recommended Value	Description
Nozzle Temperature	200-230°C	Adjust based on printer model and nozzle type
Bed Temperature	60-80°C	Higher bed temp improves layer adhesion
Print Speed	20-50 mm/s (Faster for Direct Drive)	Excessive speed reduces print quality
Fan Speed	100%	Run at full speed to ensure cooling
Nozzle Size	≥0.4mm	Recommend using 0.4mm or larger nozzles
Retraction Settings	<25 mm/s, <3 mm	Excessive retraction causes filament breakage
Heated Bed	Optional	Heated bed recommended for better adhesion

🎨 Application Scenarios

🔧 Anti-Slip Grips & Tool Handles

The high elasticity and wear resistance of TPU 90A make it an ideal choice for creating anti-slip grips. Whether for industrial tools, sports equipment, or daily items, TPU 90A provides a comfortable grip and excellent anti-slip performance. Its wear resistance ensures grips won't wear out under long-term use, extending product life. Its oil resistance also makes it a top choice in industrial environments.

⚡ Flexible Joints & Connectors

TPU 90A's outstanding elasticity makes it perfect for manufacturing flexible connectors. Whether for robotic arm joints, robot accessories, or industrial machinery connectors, TPU 90A provides smooth movement and long-term reliability. Its impact resistance ensures it won't break during frequent movement, while its high strength ensures structural stability.

📱 Wearable Device Accessories

The lightweight and flexible nature of TPU 90A makes it an ideal material for wearable device accessories. From smartwatch bands and fitness tracker protective cases to medical monitoring equipment accessories, TPU 90A provides a comfortable wearing experience and durable protection. Its sweat and oil resistance ensure it remains in top condition during daily use.

🛡️ Shock Absorbers & Protective Parts

TPU 90A's excellent impact resistance makes it the premier choice for creating shock-absorbing mounts. Whether for electronic device protection, mechanical dampening, or transit protection, TPU 90A effectively absorbs impact energy, protecting internal structures. Its durability ensures it maintains performance even after multiple impacts.

🔩 Wear-Resistant Gaskets & Seals

The high tear strength and wear resistance of TPU 90A make it an ideal choice for manufacturing industrial gaskets and seals. Whether for mechanical seals, waterproof gaskets, or wear-resistant pads, TPU 90A provides outstanding performance and long-term reliability. Its tolerance to oil and low temperatures makes it suitable for various industrial environments.

🏃 Sports & Outdoor Equipment

The durability and low-temperature resistance of TPU 90A make it perfect for sports and outdoor equipment. From sports shoe insoles and outdoor gear accessories to winter equipment, TPU 90A maintains its performance under extreme conditions. Its lightweight nature and comfort ensure a great user experience, while its wear resistance guarantees long-term reliability.

📖 Detailed Usage Guide

🌡️ Material Drying

TPU 90A is a hygroscopic material that absorbs moisture when exposed to humid environments long-term, leading to decreased print quality. It is recommended to dry the material before printing:

Standard Drying: 55-60°C × 4-6 hours (Recommended for daily use)
Intensive Drying: 70-80°C × 3-4 hours (For material after long-term storage)
Quick Drying: Using a food dehydrator or professional filament dryer can speed up the process

🖨️ Extrusion System Recommendations

TPU 90A is compatible with all mainstream FDM 3D printers, but different extrusion systems have different optimization recommendations:

Direct Drive Systems: Provides better filament control and retraction, ideal for TPU 90A printing. Recommended print speed: 30-50 mm/s.
Bowden Systems: Requires adjusting retraction parameters to avoid filament jamming. Recommended print speed: 20-40 mm/s, retraction distance <3 mm.
Nozzle Selection: Recommend using 0.4mm or larger nozzles to avoid clogging with smaller nozzles.

💾 Storage Methods

Proper storage can extend the lifespan of TPU 90A and maintain its performance:

Short-term Storage (1-3 months): Use original packaging with a sealed bag + desiccant, store in a cool, dry place.
Long-term Storage (3+ months): Use a dry box or desiccator cabinet, humidity <20% RH, temperature 15-25°C.
Avoid Factors: Avoid direct sunlight, high temperatures, humid environments, and keep away from chemicals and solvents.

🔍 Signs of Moisture Absorption & Solutions

If TPU 90A has absorbed moisture, the following signs will appear. Please dry immediately:

Popping Sounds: Sounds produced by moisture evaporating at high temperatures during printing.
Surface Bubbling: Bubbles or depressions appear on the printed surface.
Increased Stringing: Filament easily strings during the printing process.
Weak Layer Adhesion: Printed layers do not bond firmly and easily delaminate.

❓ Frequently Asked Questions

Q1: What is the difference between TPU 90A and TPU 85A?

The main difference between TPU 90A and TPU 85A is their hardness level. TPU 90A has a Shore hardness of 90A, while TPU 85A is 85A. This means TPU 90A offers higher hardness and structural strength while still maintaining excellent elasticity. TPU 90A has a tensile strength of 32 Mpa, compared to 30 Mpa for TPU 85A; its tear strength is 220-240 N/mm, compared to 85 N/mm for TPU 85A. Therefore, TPU 90A is more suitable for applications requiring higher strength and durability, such as industrial parts, anti-slip grips, and shock absorbers. TPU 85A is better for applications needing extreme softness and high elasticity, like phone cases and shoe insoles.

Q2: How can I tell if my TPU 90A has absorbed moisture?

TPU 90A shows clear signs when it has absorbed moisture. First, you will hear popping sounds during printing, caused by moisture evaporating at high temperatures. Second, the printed surface will show bubbling or pitting. Third, the filament will string excessively, significantly lowering print quality. Finally, layer adhesion will be weak, leading to easy delamination. If you notice these signs, stop printing immediately and dry the material before reusing it. It's recommended to regularly check stored TPU 90A, especially during humid seasons.

Q3: What is the optimal printing temperature for TPU 90A?

The suggested nozzle temperature for TPU 90A is 200-230°C, with a recommended temperature of 240°C. The specific temperature should be adjusted based on your printer model, nozzle type, and filament batch. If the temperature is too low, the filament may not melt completely, causing weak layer adhesion; if too high, it may flow excessively, reducing print precision. We recommend starting at the recommended 240°C and adjusting gradually based on print results. The recommended bed temperature is 45-60°C, or optionally 60-80°C to improve layer adhesion.

Q4: Why is my TPU 90A print quality poor?

Poor print quality with TPU 90A can have several causes. First, check if the material has absorbed moisture, as wet filament drastically reduces print quality. Second, ensure the print temperature is correct; both too low and too high temperatures affect quality. Third, check if the print speed is too fast; TPU 90A is recommended to print at 20-50 mm/s, and faster speeds degrade quality. Fourth, verify retraction settings; excessive retraction easily causes jamming. Finally, check for a clogged nozzle, which prevents proper extrusion. If problems persist, contact QTS technical support.

Q5: Can TPU 90A be used for food contact applications?

While TPU 90A itself is a safe material, we do not recommend using it directly for food contact applications. Although TPU 90A does not contain toxic substances, the 3D printing process can leave bacteria or contaminants on the material's surface. If you need to create food contact parts, we recommend proper cleaning and sterilization first. For medical or food-grade applications, please consult the QTS technical team for professional advice.

Q6: How should I store unused TPU 90A filament?

Proper storage extends the lifespan of TPU 90A. We recommend storing TPU 90A in its original packaging, using an additional sealed bag and desiccant. Keep it in a cool, dry place, avoiding direct sunlight, high temperatures, and humidity. For long-term storage (over 3 months), use a dry box or desiccator cabinet, keeping humidity below 20% RH and temperature between 15-25°C. Regularly check stored material to ensure packaging is intact and dry. If moisture absorption is detected, dry the material immediately.

⚠️ Important Safety Notices

Hygroscopic Material: TPU 90A is hygroscopic and will absorb moisture if exposed to humid environments long-term. Drying before printing is recommended: 55-60°C × 4-6 hours or 70-80°C × 3-4 hours.
High Temperature Safety: Nozzle temperatures can reach 200-230°C during printing. Do not touch directly. Ensure adequate ventilation around the printer to avoid inhaling high-temperature vapors.
Storage Requirements: Store TPU 90A in a sealed container with desiccant in a cool, dry place. For long-term storage, use a dry box with humidity <20% RH and temperature 15-25°C.

🌟 Why Choose QTS?

15+ Years Experience

QTS has over 15 years of experience in 3D printing material manufacturing, making us an industry-leading supplier.

8000+ Trusted Customers

Over 8000 customers trust QTS product quality, including enterprises, schools, and individual users.

Professional Tech Support

QTS provides professional technical support and consulting services to help solve your printing issues.

Quality Assurance

Every batch of material is rigorously tested to ensure consistent quality and performance.

Competitive Pricing

QTS offers the most competitive prices in the industry while guaranteeing the highest quality.