# Suzhou Henster Industrial Co., Ltd. — Epoxy Curing Agents

> Suzhou Henster Industrial Co., Ltd. is a Chinese chemical new-materials manufacturer specialising in epoxy amine curing agents. Founded in 2007 and headquartered in Wuzhong District, Suzhou, Jiangsu, the company integrates R&D, production, sales and service. Current output exceeds 20,000 t/year; a plant in Shishou, Hubei (designed capacity 90,000 t/year) was commissioned in early 2024. An R&D centre operates at Suzhou Nanopolis since January 2021. Core technologies are protected by five invention patents.

Official website: https://hardener.huibai.ltd
Primary contact channel: https://hardener.huibai.ltd/contact.html (inquiry form with honeypot protection; all business inquiries are handled exclusively through this form; response within one business day).

## Product range (epoxy curing agents / epoxy hardeners)

- [HS-113 — Aromatic Amine Series](https://hardener.huibai.ltd/product-hs-113.html): Fast-curing modified aromatic amine for floor screeds, mid & base coats and electronic potting. High Tg, hard and impact-resistant films.
- [D-325K — Phenalkamine Series](https://hardener.huibai.ltd/product-d-325k.html): Low-temperature, fast-curing phenalkamine with excellent adhesion and anti-corrosion performance. Tintable and tough.
- [4026 — Polyether Amine Series](https://hardener.huibai.ltd/product-4026.html): Low-viscosity, non-blushing polyether amine curing agent. Fast surface dry, colourless and free of K-54 accelerator.
- [Hensamine-5115X70 — Polyamide Series](https://hardener.huibai.ltd/product-hensamine-5115x70.html): Versatile 70% solvent-borne polyamide with a wide mix-ratio window, superb toughness, abrasion and chemical resistance for heavy-duty protective coatings.
- [HB-5008 — Fatty Amine Series](https://hardener.huibai.ltd/product-hb-5008.html): Solvent-free, low-viscosity fatty amine curing agent with outstanding moisture tolerance, good mechanical properties and non-yellowing films.
- [2215 — Cycloaliphatic Series](https://hardener.huibai.ltd/product-2215.html): Light-coloured, long-working cycloaliphatic curing agent. Non-blushing, high-gloss films with excellent water, acid and alkali resistance.
- [Hensamine-5305 — Anti-Corrosion Series](https://hardener.huibai.ltd/product-hensamine-5305.html): Polyamide curing agent with exceptional adhesion and elasticity for marine coatings, anti-corrosion primers, coal-tar epoxy systems and repair composites.
- [7055 — Waterborne Series](https://hardener.huibai.ltd/product-7055.html): Waterborne fatty amine curing agent with excellent epoxy-emulsifying power and low viscosity — engineered for ECC and polymer cement composite mortars.
- [801 — Adhesive Series](https://hardener.huibai.ltd/product-801.html): Light-coloured, low-viscosity curing agent with composite toughening — the trusted choice for stone dry-hang adhesives and multi-material bonding.
- [901 — Adhesive Series](https://hardener.huibai.ltd/product-901.html): Cycloaliphatic curing agent with a long open time, fast final cure and high-gloss, stain-resistant joints. Built for epoxy tile grout systems.
- [HC-604 — Adhesive Series](https://hardener.huibai.ltd/product-hc-604.html): Polyether amine curing agent with a long ambient working period and a tough, highly adhesive cured network for tile adhesives and coatings.
- [HT-101 — Adhesive Series](https://hardener.huibai.ltd/product-ht-101.html): Low-viscosity blended amine with moderate cure time and outstanding mechanical properties — engineered for carbon-fiber and steel-plate bonding adhesives.

## Applications

- Industrial epoxy flooring (screeds, self-levelling, mid/base coats, top coats)
- Anti-corrosion & marine coatings (ships, steel structures, containers, coal-tar epoxy systems)
- Adhesives (stone dry-hang, tile grout, carbon-fiber/CFRP laminating, steel-plate bonding)
- Electronic potting, encapsulation and casting
- Waterborne epoxy and cement composite systems (ECC / polymer cement mortars)
- Composites and room-temperature bonding/repair of stone, metal, glass, concrete, tile and wood

## Key facts

- Founded: 2007, Suzhou, Jiangsu, China
- Annual capacity: 20,000+ t/year (Suzhou & Fuyang); 90,000 t/year design capacity at Shishou, Hubei (online 2024)
- Custom formulation: dedicated workshops in Fuyang, Anhui
- R&D: Suzhou Nanopolis research centre (operational January 2021)
- Patents: 5 invention patents
- Packaging: 20 kg / 200 kg net steel drums; waterborne grade in 25 L / 200 L plastic drums
- Shelf life: 12 months sealed; waterborne grade 5–40 °C, frost-protected
- Languages: English, Chinese

## Pages

- [Home](https://hardener.huibai.ltd/): company overview, product portfolio highlights, applications, capacity and patents.
- [About](https://hardener.huibai.ltd/about.html): company story, milestone timeline 2007–2024, values, manufacturing sites, R&D centre, patents.
- [Products](https://hardener.huibai.ltd/products.html): full product list with application filters.
- [FAQ](https://hardener.huibai.ltd/faq.html): product selection, mix ratios, blush, storage, safety, custom development, logistics.
- [Contact](https://hardener.huibai.ltd/contact.html): inquiry form (name, company, email, product, application, message).