Rubber Adhesion Amino Crosslinker HMMM Crosslinker For Tier Rubber

Rubber adhesion Amino crosslinkers HMMM for tiers rubbers

Haminol 303A resins are a portfolio of HMMM liquid resins used as a crosslinker for adhesion promoting and reinforcing systems in rubber applications. This product offers several advantages over the older hexa methylene tetramine (HEXA or HMT) system.

The chemical name of Haminol 303A is hexamethoxymethyl melamine, which is used as a methylene donor of the direct bonding system between rubber and skeleton material, and can be dissolved in water and general organic solutions.

Rubber binder Haminol 303A reacts with methylene acceptors at vulcanization temperature to adhesion to rubber and skeleton materials. For example, it reacts with resorcinol formaldehyde resin, adhesive RE, adhesive RS, etc. to generate thermosetting resin. If the reaction occurs before vulcanization, the adhesion of this mating system is lost. Usually, the rubber composed of rubber, filler and methylene acceptor is prepared at a higher temperature; Then, at the end of the compounding process, Binder Haminol 303A and other compounds are added.

Chongqing Jianfeng Haokang Chemical Co., Ltd., a subsidiary controlled by Chongqing Chemical & Pharmaceutical Holding (Group) Company, is located in the Baitao Chemical Park, Fuling District, Chongqing. Inheriting the rigorous spirit of the nuclear military industry dating back to 1966, we specialize in providing the market with stable and high-quality amino resin products and systematic solutions.

        Leveraging the strong industrial support of the Chemical & Pharmaceutical Group, we have established an efficient circular economic industrial chain centered on formaldehyde, hexamethoxymethylmelamine, and etherified melamine resins. This deeply integrated structure ensures end-to-end quality control and a stable supply from key raw materials to finished products, embedding green principles into every stage of production.

        Innovation is the cornerstone of our growth. With 21 authorized patents and a green production system that enables the recycling of resources, we are committed to harmonizing product performance with environmental benefits. Recognized as a Chongqing Municipal "Key Little Giant" and a National-Level "Specialized, Refined, Unique, and Innovative Little Giant" enterprise, we consistently drive our operations with technology and uphold our commitment to quality, creating sustainable long-term value for our customers.

        We firmly believe that exceptional partnerships are the source of value creation. Jianfeng Haokang sincerely looks forward to collaborating with you, fostering synergistic innovation in the field of amino resins and related applications, for a mutually beneficial and prosperous future.