Industry Overview
The rubber compounding sector depends on performance-enhancing additives to achieve tack, flexibility and processability in tire and non-tire rubber goods.
Velrez hydrocarbon resins function as tackifying and reinforcing agents, improving compound cohesion, green strength and filler dispersion across a wide range of elastomers.
Role of Hydrocarbon Resins in rubber compounding
Hydrocarbon resins are used in rubber compounding because they provide:
- Improved tack and green strength for building tires and rubber laminates
- Better compatibility with natural rubber (NR), SBR, BR and other elastomers
- Enhanced cohesive strength for stable compound structure
- Controlled viscosity for smoother processing and mixing
- Reinforcement effects in silica- and carbon-black-filled systems
- Thermal and oxidative stability during curing
Key Benefits for This Industry
- Increased tack for tire building and rubber assembly
- Better filler wetting and dispersion
- More stable viscosity and easier mixing
- Balanced elasticity and mechanical performance
- Compatible grades for NR, SBR, BR and EPDM compounds
Recommended Resin Types
For rubber compounding, the following Velrez hydrocarbon resin families are typically used:
- C5 Aliphatic Resins – tackifier for NR/SBR/BR; green strength improvement
- C9 Aromatic Resins – reinforcement and improved compatibility with aromatic oils
- C5/C9 Modified Resins – balanced tack, compatibility and processability
- DCPD & Hydrogenated DCPD Resins – stability, durability and low color
Recommended Velrez Grades
| Grade | Type | Softening Point | Key Benefit | Typical Use |
| Velrez 5ZA5-100 | C5 Aliphatic | 96–104°C | tackifier | NR/SBR/BR rubber compounds, tire building |
| Velrez 9Z4-100 | C9 Aromatic | 95–105°C | reinforcement | filler-rich compounds, mechanical rubber goods |
| Velrez 5K9S0-110 | C5/C9 Modified | 105–115°C | balanced tack & flow | general-purpose rubber additives |
| Velrez 9W0H-100 | Hydrogenated DCPD | 95–105°C | stability & low color | high-performance rubber goods |
(If needed, we can substitute or add the exact Velrez grades you want to highlight.)
How Mardan Supports the Industry
Mardan BV provides:
- Technical guidance for selecting tackifiers and reinforcing resins
- Reliable supply through strategic Velrez partnerships
- Formulation support for tire, industrial and automotive rubber compounds
- Access to a broad hydrocarbon resin portfolio for elastomers, adhesives and coatings