Name: Phosphate Ester Adhesion Promoter PEA-30
Brand: Coatingsink
SKU: phosphate-ester-adhesion-promoter-pea
Availability: InStock

Question 1

How does PEA-30 improve adhesion to galvanized steel and aluminum?

Accepted Answer

PEA-30 contains phosphate ester groups that chelate strongly with metal oxide surfaces on galvanized steel and aluminum, creating a covalent-like bond between the inorganic substrate and the organic binder. This mechanism also passivates the surface, providing a secondary corrosion-inhibiting effect.

Question 2

Is PEA-30 compatible with both waterborne and solventborne systems?

Accepted Answer

Yes. PEA-30 is designed for broad compatibility. In waterborne systems it can be used as received or neutralized with amine (e.g. AMP-95) to improve water dispersibility. In solventborne systems it is directly miscible with common coating solvents such as xylene, butyl acetate, and MEK.

Question 3

What is the recommended addition method for PEA-30 in a waterborne primer?

Accepted Answer

Add PEA-30 to the resin phase before pigment dispersion, at 1–2% on total formulation weight. Partial neutralization with dimethylethanolamine (DMEA) to pH 7.5–8.0 is recommended for optimal compatibility with acrylic or polyurethane dispersions.

Acid Value	180–210 mg KOH/g
Appearance	Clear to slightly hazy liquid
Active Content	≥95%
Viscosity (25°C)	800–1500 mPa·s
Recommended Dosage	0.5–3.0% on binder

Phosphate Ester Adhesion Promoter PEA-30

Specifications

FAQ

Interested in Phosphate Ester Adhesion Promoter PEA-30?