Plastic products are ubiquitous in every corner of daily life, from food packaging to kitchen utensils. However, not all plastics are suitable for direct contact with food.
What is food grade nylon?
Food grade nylon is a special engineering plastic that meets food safety standards. It must undergo strict testing and certification, such as the US FDA (Food and Drug Administration) 21 CFR § 177.1500, EU 10/2011, and other standards, to ensure that it does not contain harmful substances and does not contaminate food.
Food grade nylon, professionally known as “polyamide that complies with food contact material regulations”, is a special engineering plastic that has passed strict food safety testing and certification.
It must have chemical inertness to ensure that it does not react with food ingredients; It must be non-toxic and free from any substances that may migrate into food and pose a risk to human health.
Unlike ordinary nylon commonly found in our daily lives, food grade nylon follows extremely strict standards in every aspect from raw material screening, production process to finished product testing.
Ordinary nylon may contain various additives and modifiers to meet industrial needs, while food grade nylon must ensure that all ingredients meet food contact safety requirements.
The main types and characteristics of food grade nylon
The food grade nylon family is vast, mainly divided into the following categories based on their chemical structure and properties:
Nylon 6 (PA6): With excellent toughness, wear resistance, and chemical stability, high transparency, it is an ideal material for food packaging films.
Nylon 66 (PA66): Known for its higher melting point, stronger rigidity, and better heat resistance, it is widely used in food processing components that require high-temperature disinfection.
Nylon 12 (PA12): With extremely low water absorption and excellent dimensional stability, it is suitable for manufacturing precision food machinery parts.
Nylon 46 (PA46): Its heat resistance is particularly outstanding, and its long-term use temperature can reach over 160 ° C, making it suitable for high-temperature working environments.
Co polymerized nylon: By designing its molecular structure and combining the advantages of various types of nylon, it meets specific application requirements.
How to select materials?
How should consumers and businesses make wise choices when faced with the dazzling array of products in the market?
When purchasing, you can choose materials with food grade certification, such as “FDA certification”, “EU 10/2011 conformity declaration”, “GB 4806.6 compliance”, etc. This is the most direct proof of product safety.
Choose the appropriate product based on its intended use. For example:
For microwave heating or high-temperature cooking: Be sure to choose a model that is clearly labeled as “high temperature resistant” (such as -20 ℃ to 140 ℃ or higher).
For frozen storage: The material needs to have good low-temperature impact resistance to avoid becoming brittle at low temperatures.
Used for storing oily food: The material should have excellent oil resistance.
Recommended food grade nylon materials
With the increasing global emphasis on food safety, environmental protection, and sustainable development, food grade nylon is also evolving towards higher end, smarter, and greener directions.
As an innovator in the field of polymer materials, Suqing has always been committed to applying cutting-edge technology to the most daily life scenarios. We are well aware that food safety is the foundation of people’s livelihood, and every point of contact with food should be a safety anchor.
SQ143 series brand of SuQing


The SQ143 series of SuQing is essentially a set of modified solutions based on nylon.
Basic nylon is known for its excellent mechanical strength, heat resistance, chemical resistance, and wear resistance, and is a “backbone” material in fields such as automotive, electronics and electrical, and mechanical manufacturing.
However, with the development of industrial technology and strict product requirements, pure nylon materials often cannot meet the ultimate demands in specific scenarios.
This is precisely the significance of the SQ143 series – it unleashes the potential of nylon materials through precise formula design and modification processes, and solves various complex engineering challenges in a targeted manner.
SQ143 nylon material has passed food grade testing!

The high-performance nylon material SQ143 developed by Suqing Technology has officially passed the comprehensive food grade safety testing based on the national standard GB 4806.7-2023. The test results indicate that SQ143 performs excellently in key indicators such as total migration, heavy metal content, and sensory requirements, fully meeting the strict regulations for food contact materials.
This certification ensures that the material will not release harmful substances when in direct, indirect, or long-term contact with various types of food (including water-based, acidic, and oily foods), ensuring the safety and hygiene of the end product.
It is very suitable for applications in areas with extremely high safety requirements, such as infant and toddler products, kitchen appliances, catering packaging, and food processing equipment.
At the same time, there are multiple options for SQ143 series materials. You can contact our engineer at 13926159974 to choose the highest quality solution according to your own project needs.