Acrylic water-based adhesive

Acrylic Sealant / Water-Based High-Elasticity Sealant

Water-based high-elasticity sealant is an environmentally friendly elastic sealing material with the following properties, applications, curing time, and precautions:

I. Properties

1. Environmentally Friendly & Non-Toxic: Uses water as the dispersion medium, free of organic solvents, low VOC, and no irritating odor

2. High Elasticity: Forms a flexible film after curing, capable of withstanding significant movement (typically ≥300% elongation rate), adapting to joint deformation

3. Strong Weather Resistance: Resistant to UV rays, high and low temperatures (-40°C to 90°C), and aging; suitable for outdoor environments

4. Excellent Adhesion: Strong bonding to various substrates such as concrete, metal, glass, and wood

5. Waterproof & Mold Resistant: Excellent anti-leakage performance; some products include mildew inhibitors, making them suitable for humid environments

6. Paintability: The cured surface can be painted or coated

II. Main Applications

1. Construction Field:

• Sealing joints around doors/windows, curtain wall sealing, expansion joint filling

• Waterproof sealing for damp areas like bathrooms, kitchens, and basements

2. Home Decoration & Repair:

• Sealing around pipes, filling tile gaps, repairing roof cracks

3. Other Scenarios:

• Industrial uses such as automotive interior sealing, HVAC duct joints

III. Curing Time

• Surface Dry: Approximately 30-60 minutes (at 25°C, 50% humidity)

• Tack-Free / Through Dry: 24-48 hours for full cure (when thickness ≤ 3mm)

• Complete Cure: May take 3-7 days for deep layers or thicker applications

• Note: Low temperatures or high humidity can slow curing. Recommended application temperature is 5°C to 35°C

IV. Precautions

1. Substrate Preparation:

• Clean surfaces thoroughly, removing oil, dust, and loose particles; ensure they are dry

• For porous substrates (e.g., concrete), applying a primer is recommended to enhance adhesion

2. Application Conditions:

• Avoid application during rain or snow; protect uncured sealant from water exposure

• In hot weather, spraying a fine water mist can prevent surface cracking

3. Application Guidelines:

• Recommended joint depth is 5-10mm; use backer rod for deeper joints

• Smooth the bead with a putty knife after application; clean tools promptly with water

4. Safety & Storage:

• In case of skin contact, rinse immediately with water; seek medical attention if it gets into the eyes

• Store in a cool, dry place at 5°C to 30°C; protect from freezing. Typical shelf life is 12 months

V. Common Issues & Solutions

• Slow Curing: Check ambient temperature and humidity; ensure adequate ventilation

• Poor Adhesion: Verify substrate compatibility; use a specialized primer if necessary

Note: This translation is for your reference. For critical applications, always consult and follow the specific technical data sheet and instructions provided by the product manufacturer