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Waterborne Colored Pavement Series

ST300 Waterborne Primer for Tiles and Marble

ST300 is a two-component waterborne epoxy primer formulated with a high-performance, solvent-free epoxy system. It is specifically designed for difficult-to-bond substrates such as ceramic tiles, marble, and stainless steel. This primer significantly enhances surface adhesion and interlayer bonding strength, and also offers excellent water resistance. It serves as an ideal base layer for functional coating systems.

Application Areas

  1. Ceramic tile and marble surfaces
  2. Stone paving and floor tiles
  3. Stainless steel and other metal substrates

Key Features

  1. Eco-friendly: Waterborne and solvent-free, with low odor
  2. Superior adhesion: Excellent bonding performance on non-porous surfaces (adhesion grade 0–1)
  3. Versatile compatibility: Suitable for both inorganic and metal substrates
  4. Durability enhancement: Significantly improves the water resistance and service life of the entire system
  5. Fast recoating: Allows subsequent coating application 2–4 hours after priming

Instructions for Use

Preparation and Mixing

  1. Mix Components A and B thoroughly at the specified ratio before use.
  2. If necessary, the mixture may be diluted with clean water (no more than 10%).
  3. Ensure the substrate is dry, clean, and free of standing water.

Application Conditions

  1. Apply the mixed material within 4 hours after preparation.
  2. Avoid contact with gasoline, solvents, thinners, or other oil-based substances during application.
  3. Do not apply in rainy or high-humidity conditions.
  4. The coating appears milky white when wet and becomes transparent after drying. Slight color variation is normal.
  5. Recoating can be performed 2–4 hours after the primer is dry to the touch or exhibits no tackiness underfoot.

Storage and Transportation

  • Packaging Specification: 18 + 2 kg/set
  • Storage Conditions: 5–35°C, dry and ventilated, avoid direct sunlight
  • Shelf Life: 12 months (in sealed storage)
  • Transportation: Non-hazardous; avoid freezing, rain, and sun exposure during transit
Product Model Key Features Specification Reference Consumption (kg/m²)
ST300 Specialized primer for ceramic tiles and marble substrates 18 + 2 kg/set 0.1
ST400 Specialized primer for sanded cement and concrete surfaces 18 + 2 kg/set 0.1
Parameter ST300 ST400
Component Type Two-component Two-component
Appearance Milky liquid Milky liquid
Surface Dry Time (25°C) Approx. 30 minutes Approx. 30 minutes
Hard Dry Time (25°C) 24 hours 24 hours
Full Cure 7 days 7 days
Gloss Level Transparent, matte Transparent, matte
Water Resistance 96h – no blistering or peeling 96h – no blistering or peeling
Alkali Resistance 48h – no blistering or peeling 48h – no blistering or peeling

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