Hongtu Chemical

Materials for your production process

The rubber compound, substrate and process conditions all matter when choosing a material. Whether you are reviewing an existing grade or evaluating a new application, we can start with the information you have.

Discuss your application

Select the process closest to your requirement. The details below help us focus the product enquiry and identify the technical documents you need.

Rubber-to-metal & other substrate bonding

Discuss primer and covercoat systems or one-coat adhesives for vulcanization bonding. Silicone and other elastomers need grade-specific review; a rubber family name alone does not establish compatibility.

Useful details for your enquiry

  • Rubber compound and cure system
  • Metal or other substrate and its preparation
  • Coating method, molding cycle and service conditions
Discuss your application

Polyurethane & in-mold bonding

Our range includes materials for polyurethane bonding and selected in-mold bonding processes. Tell us whether you use cast polyurethane, an injection process or another system so we can focus on the relevant product family.

Useful details for your enquiry

  • Polymer type and process
  • Insert or substrate material
  • Mold conditions and required bond performance
Discuss your application

Molding & mold release

Discuss release agents for rubber molding and related applications. Include any coating or bonding operation after demolding so that the release-agent enquiry considers the rest of your process.

Useful details for your enquiry

  • Molded material and mold surface
  • Molding temperature and release-agent application
  • Release frequency and subsequent finishing operations
Discuss your application

Weatherstrip surface coatings

Enquire about coatings for sealing profiles, including Sipiol product lines. Describe the required finish and the friction, wear or noise requirements your team will evaluate.

Useful details for your enquiry

  • Profile material and surface preparation
  • Coating and drying or curing equipment
  • Surface finish and applicable test requirements
Discuss your application

Flocking of elastomers & profiles

Discuss flocking adhesives for your substrate and fiber combination. State whether flocking is integrated into the production line or carried out off-line, together with the available curing conditions.

Useful details for your enquiry

  • Substrate material and flock fiber
  • Surface treatment and adhesive application
  • Line speed, curing conditions and test requirements
Discuss your application

Product selection depends on the exact grade, current technical documentation and your process conditions. Complete application testing before production use.

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Tell us what you need

For a quotation, send the product grade, quantity and delivery destination. Still choosing a material? Describe your application and we can discuss the next step.

Discuss your application