Zinc-rich Epoxy Primer (Two-component)

Zinc-rich Epoxy Primer (Two-component)

Product Overview:

Epoxy zinc-rich primer is a two-component coating composed of epoxy resin, curing agent, ultrafine zinc powder, organic solvents, etc.Components and curing agentBaotashan brand epoxy zinc-rich primer features excellent adhesion, flexibility, water resistance, rust prevention properties, and provides outstanding cathodic protection. It is used on steel surfaces under moderate to severe corrosive conditions, suitable for bridges, steel structures, large chemical machinery, storage tanks, and internal/external pipeline coatings.

Construction Reference:

Surface Treatment—— Before painting, the substrate surface should be clean, dry, smooth, and firm, free from oil, rust, and other contaminants. If there are issues such as oil on the steel surface, old paint residue, or weld burrs, mechanical treatment should be applied (if conditions permit, sandblasting or shot blasting is recommended for rust removal), aiming for a standard of Sa2.5 or higher (Sa3.0).

Dust Removal—— Use an air gun to blow off dust or clean with a dry brush.

Old Paint Film Treatment—— Remove with a scraper, then fill and sand smooth, or employ other methods as appropriate.

Oil Treatment—— First clean with a thinner or other methods, then wipe with a clean cloth. If conditions allow, rinse with a weak acid solution, followed by water, and then air-dry or oven-dry.

Construction Environment - Substrate temperature: 5°C to 40°C, should be at least 3°C above the dew point temperature.

Relative humidity of air: <80%

Measurements of temperature and relative humidity should be taken near the substrate at the work area. In enclosed spaces, painting must be conducted with adequate ventilation to ensure proper film drying. The coating should not be exposed to hot air before solvents have fully evaporated from the film.

The coating must not be subjected to external forces until fully cured.

Mixing ratio — Refer to the ratio indicated on the packaging.

Construction Method — Air spraying or brushing. If special application methods (such as high-pressure airless spraying or roller coating) are used, please specify in advance. The company will adjust the formula accordingly for special methods.

Dilution Ratio — Generally 10-30% of the paint volume used.

Gel Time — 23°C, 6 hours (shortens as temperature increases).

Curing Time — Thoroughly mix components A and B according to the specified ratio, then allow to cure for 30 minutes before use.

Spray gun pressure — 4-6 kg

Tool cleaning — Compatible thinner

Recommended matching products:

EpoxyZinc-rich primer 50Micron (Dry film thickness)Available topcoats: such as epoxy paint,Polyurethane paintor rubber-basedpaintetc.Other supporting materials can be formulated according to specific circumstances。

Health and Safety:

To avoid skin and eye contact with paint, wear protective clothing, gloves, goggles, and masks before construction. If paint splashes on the skin, immediately wash it off with warm water, soapy water, or other appropriate cleaning agents. If it gets into the eyes, rinse thoroughly with plenty of clean water and seek medical attention promptly.

The construction site should be well-ventilated, and air masks must be worn during spraying operations to prevent inhalation of solvent vapors and paint mist. Do not pour the paint into sewers or drainage pipes.

This product is flammable. Keep away from open flames during storage and application, and smoking is strictly prohibited at the construction site. Store the product out of reach of children.

Storage:

Ata temperature of 25℃, it can be stored for at least 12 months, after which it should be inspected before use. Store in a dry, ventilated, shaded place, away from fire and heat sources.

Note:

The above materials and data are all based on laboratory tests and experimental experience, and variations may occur due to individual circumstances (such as construction techniques, testing methods, or coating improvements).