RT1311 PUR Adhesives for Flex-Packaging

The Advantages of Our Flex Packaging PUR Adhesive RT1311 / RT1316N

1. 100% Solid, Solvent-Free Two-Component System

SINOHESIVE® RT1311 / RT1316N is a 100% solid-content, solvent-free two-component PUR adhesive system specially developed for film-to-film lamination in flexible packaging. It helps replace solvent-based laminating adhesives while creating a cleaner, safer, and odor-free production environment.

2. Broad Compatibility with Common Flexible Packaging Structures

It is suitable for a wide range of common plastic laminate structures, including OPP/LDPE, PET/LDPE, Nylon/CPP, Al/LDPE, Al/CPP, VM-PET/LDPE, VM-PET/CPP, PET/thick PE, OPP/VM-CPP, and PET/VM-CPP. It is especially effective for treated non-polar materials such as corona-treated LDPE and CPP.

3. Clear, Odorless & Flexible Bond Line

After curing, the adhesive film remains transparent, odorless, elastic, and resistant to aging. It helps maintain clean package appearance and stable laminate performance for both transparent and printed flexible packaging structures.

4. Fast Curing & High-Speed Processing

RT1311 / RT1316N is suitable for high-speed solvent-free lamination lines and supports rapid curing after lamination. This helps improve line efficiency, reduce waiting time, and increase finished-product throughput in industrial production.

5. High Hygiene Safety for Food Packaging

The formulation contains no primary aromatic amine migration and complies with FDA 175.105 requirements for adhesives. It is suitable for hygiene-sensitive applications such as food packaging, pharmaceutical packaging, and other demanding packaging structures.

Key Process Description

1. Adhesive Mixing & Preparation

SINOHESIVE® RT1311 and RT1316N are used as a two-component PUR adhesive system. The components are mixed according to the required ratio before lamination and prepared for continuous coating through a solvent-free laminating system.

2. Uniform Coating Application

The mixed adhesive is applied evenly by a multi-roll transfer coating process to form a thin and consistent adhesive layer, helping ensure stable wetting and reliable bonding between the flexible substrates.

3. Film-to-Film Lamination

After coating, the target substrates are laminated together under controlled pressure and line conditions. The system is suitable for high-speed solvent-free lamination production and supports fast positioning during processing.

4. Bond Development & Curing

After lamination, the adhesive continues to build durable bond strength and develops an elastic, aging-resistant bond line. It is suitable for packaging structures that require stable performance after curing and resistance to 100°C boiling conditions.

Benefits in Flexible Packaging Applications

General Plastic Film Lamination

Ideal for common flexible packaging laminates such as OPP/LDPE, PET/LDPE, and Nylon/CPP, where broad material compatibility and stable bonding performance are required.

Aluminum Foil & Metallized Film Structures

Suitable for inner-layer lamination of Al/LDPE, Al/CPP, VM-PET/LDPE, VM-PET/CPP, OPP/VM-CPP, and PET/VM-CPP structures that demand strong bonding and good finished-package stability.

Food, Pharmaceutical & Industrial Packaging

Provides a safe, odorless, and high-performance solution for packaging applications that require hygiene compliance, process efficiency, and reliable aging resistance.

Packing Details

Available Packaging

We have various packaging options for our PUR hot melt adhesive:

1) 200 Kg / drum, 56 drums / 20'GP

2) 20 Kg / pail or barrel, 448 pails / 20'GP

3) 2 Kg / can

4) 300 ml / cartridge

Company Information

Sino-Adhesive is a leading manufacturer of PUR adhesive solutions for flexible packaging, woodworking, textiles, automotive, and industrial applications. We provide innovative and efficient bonding solutions for a wide range of high-performance lamination needs.

Operating a world-class production base in Jiangmen City, Guangdong Province, China, Sino-Adhesive is certified with Bluesign, OEKO-TEX, GOTS, IATF 16949, ISO 9001, ISO 14001, and ISO 45001 systems. Welcome to contact us for customized flexible packaging lamination solutions.

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