Application and Selection Guide of C5 Petroleum Resin in Adhesives

Overview of C5 Petroleum Resin

C5 Petroleum Resin is a non-polar hydrocarbon resin polymerized from C5 fractions.In the adhesive industry, it serves as a key tackifier, enhancing initial tack and peel performance.
C5 resin has excellent compatibility with EVA, SIS, SEBS, and natural rubber systems, and is widely used in hot melt adhesives, pressure-sensitive adhesives, carton sealing, label adhesives, and shoe adhesives.

Key Features & Advantages:

• Improves initial tack and holding strength
• Enhances coating flow and wetting properties
• Increases thermal stability and weather resistance
• Low odor, light color, and environmentally friendly

 Classification and Differences of C5 Petroleum Resin

Selection Recommendation:

If color and odor are critical, choose hydrogenated C5;

For cost-effective formulations,Regular or Refined C5 are good options.

Core Functions in Adhesive Systems

1.Enhancing Initial Tack and Peel Strength

C5 resin forms a synergistic tackifying structure with polymer matrices, providing quick adhesion buildup.

2.Improving Application Performance

Proper addition of C5 resin reduces viscosity，enhances melt flow，and ensures uniform coating.

3.Increasing Heat and Aging Resistance

Hydrogenated C5 resin effectively delay oxidation and yellowing,extending adhesive shelf life.

4.Improving Polymer Compatibility

its non-polar natue ensures excellent  compatibility with EVA,SIS SEBS,and natural rubber,stablizing adhesive formulations

Typical Application Fields

• Hot Melt Adhesives (HMA): Packaging, woodworking, bookbinding
• Pressure-Sensitive Adhesives (PSA): Labels, tapes, hygiene products
• Shoe and Rubber Adhesives: Enhances initial tack and peel strength
• Industrial Adhesives: Automotive interiors, construction sealants, road marking adhesives

Different adhesive systems can select C5 resins with suitable softening points to balance tack and heat resistance.

Comparison Between C5 and C9 Petroleum Resins

Summary

C5 resin is more suitable for adhesive formulations,especially in hot melt and pressure sesitive adhesives 

Purchasing and Quality Considerations

when selecting C5 Peteoleum Resin focus on these key parameters

• Softening Point (°C): Determines tack and heat resistance
• Color (Gardner): Affects adhesive appearance and transparency
• Acid Value: Impacts stability and compatibility
• Molecular Weight Distribution: Influences viscosity and adhesion balance

High-quality C5 resins should feature:

• Stable softening point range (90–135°C)
• Light color and impurity-free appearance
• Low odor, non-caking particles
• Excellent batch consistency

Company Advantages & Services

We specialize in the production and export of C5 Petroleum Resin, Hydrogenated C5, and C5/C9 Copolymer Resin.

Our product are widely uesd in EVA hot melt adhesives,SIS/SEBS pressure sensitive adhesives and rubber tackifiers

Out Strengths

• High purity, low VOC formulation
• Technical Data Sheet (TDS) and  samples available
• OEM customization and long-term supply support

C5 Petroleum Hydrocarbon Reisn 丨 C9 Petroleum Hydrocarbon Reisn 丨Hydrogenated Resin Hydrocarbon Resin