Recommended products:Adhesion Resin PP5325 Suitable for Three-Coat One-Bake Systems, Providing Excellent Adhesion to PP Plastics

PP Adhesion Resin—PP5325 is an acrylic resin modified by copolymerization of special monomers with chlorinated polyolefins, offering excellent adhesion to PP plastics.

Product Features

l  Composition: Chlorinated polyolefin-modified acrylic resin

l  Appearance: Yellow liquid

l  Non-volatile Content: 46±2%

l  Solvent: (TOL/XYL)

l  Specific Gravity: Approx. 0.95

l  Viscosity (25℃): 1000-2500 mPa·s

l  Acid Value: 6-12 mg KOH/g (100%)

l  Glass Transition Temperature: 65℃

Key Properties

l  Primarily used in coating systems for PP plastics.

l  Acts as an adhesion primer, providing excellent adhesion after topcoat application.

l  Offers outstanding interlayer adhesion, grindability, and boiling water resistance.

l  Excellent pigment-wetting properties and workability.

l  Especially suitable for three-coat one-bake systems (with polyester as the topcoat).

Application Fields

l  Primer for PP or PP/EPDM+TD20/30 automotive bumpers

l  Coatings for polypropylene (PP) plastic toys, household appliances, and crafts

l  Single-component primers for flower pots and strollers

Usage Instructions

l  Mix with pigments and grind directly to prepare basecoat.

l  Can be used directly or combined with other resins to create basecoats or metallic paints. Conduct tests to determine the optimal dosage before use.

Recommended Dosage

Depends on the coating system; conduct tests to determine the optimal dosage.

Formulation of Treatment Agent

Handling & Safety

·         Viscosity Increase & Gelation: PP5325 may experience viscosity increase or gelation due to solvent evaporation or low temperatures. If gelation occurs, heat the product in a water bath at 50-60°C, add a small amount of toluene, and stir to restore fluidity without affecting performance.

·         Safety Precautions: Contains solvents. Handle with care to avoid skin and eye contact. Refer to the Material Safety Data Sheet for additional information.

Storage Conditions

·         Keep away from heat and open flames.

·         Store in a cool, well-ventilated area with tightly sealed containers.

·         Storage temperature: 0°C to 40°C.

Packaging

Net Weight: 200kg/25kg

Shelf Life

12 months from the date of production.