Clear Coat Epoxy Resin
Description
Technical Parameters
Extreme Transparency & Yellowing Resistance: Light transmittance reaches 95%-98%, close to optical glass. Adopting a dual protection system of "UV absorber + HALS", the yellowing index (ΔE) is <1.5 after 12 months of outdoor exposure, and no obvious yellowing occurs for more than 5 years of indoor use.
Effective Protection Performance: After curing, the hardness reaches Shore D 80-85, with excellent scratch resistance (withstanding H pencil scratches). The dense, non-porous film has an IPX7 waterproof rating, and is resistant to wiping with daily chemicals such as alcohol, coffee, and soy sauce, making it stain-resistant and easy to clean.
Excellent Construction Performance: Viscosity is only 10-30Pa·s (25℃), with excellent self-leveling properties, forming a 1-3mm uniform coating without mechanical leveling. It has self-defoaming characteristics: bubbles can rise and burst automatically within 10 minutes after mixing, reducing construction defects.
Wide Compatibility & Safety: Compatible with wood, stone, metal, glass, and ceramics. For porous substrates (e.g., wood), a sealing coat can be applied first to prevent color bleeding. No volatile organic compounds (VOCs) are released during curing, meeting indoor environmental protection standards.
Product Specifications
| Parameter Category | Parameter Name | Specification |
|---|---|---|
| Basic Information | Color | Black, white, gray, red, yellow, blue, green, etc. |
| Resin Characteristics | Resin Characteristics | Easy to mold; High hardness; Relatively brittle; General precision with an accuracy of 0.05mm |
| Liquid State Properties | Liguid Viscosity (25℃) | 300 - 500MPa·s |
| Liquid Density (25℃) | 1.05 - 1.25g/cm³ | |
| Mechanical Properties | Flexural Modulus | 1000 - 1500 MPa |
| Flexural Strength | 49 - 80MPa | |
| Tensile Strength | 42 - 62Mpa | |
| Tensile Modulus | 2000 - 2500MPa | |
| Elongation at Break | 15% - 17% | |
| Notched Impact Strength | 20 - 49j/m, etc. | |
| Shore Hardness | 90 - 95D | |
| Thermal Properties | Glass Transition Temperature | 78℃ |
| Heat Distortion Temperature | 80℃ | |
| Coefficient of Thermal Expansion | 95±5×10⁻⁶, etc. | |
| Shrinkage Properties | Volumetric Shrinkage | 3.83 - 2.95% |
| Linear Shrinkage | 0.8 - 1.5% | |
| Storage & Curing | Optimal Storage Temperature | 20℃ - 25℃ |
| Curing Wavelength | 355nm - 455nm, etc. |
Clear Coat Epoxy Resin application
Xinshan is a professional resin manufacturer!
Decoration & Home Furnishing
Clear coating for solid wood/composite flooring, protection of marble/quartz countertops, renovation of vintage furniture surfaces, enhancing gloss and scratch resistance.
Art & Cultural and Creative Fields
Coating for resin paintings, shaping of epoxy jewelry, film protection for photos/posters, highlighting work details and extending service life.
Industrial Protection
Transparent insulating coating for electronic components (not affecting visual inspection), moisture-proof protection for optical devices, weather-resistant coating for metal nameplates.
Commercial Scenarios
Coating for bar counters, shopping mall display cabinets, encapsulation of coin/bottle cap art floors, balancing aesthetics and durability.
Selection Guide
| Application Scenario | Recommended Features | Notes |
|---|---|---|
| Outdoor decorative coating | High UV protection | Recommended coating thickness ≥2mm to enhance weather resistance |
| Wood/stone sealing protection | Low viscosity, penetrating | Apply a thin sealing coat first to prevent substrate pigment bleeding |
| High-precision coating for artworks | High transparency, bubble-free | Control ambient humidity below 70% |
| Large-area floor coating | Fast-curing | Construct in sections to avoid uneven leveling due to excessive single-area construction |
FAQ
1.Does coating thickness affect performance? What is the maximum applicable thickness?
Thickness directly affects protection performance. The recommended coating thickness is 1-3mm (single application): too thin is prone to scratches, while thickness >5mm may cause cracking due to curing exotherm. For thicker coatings, apply in 2-3 layers with 24-hour intervals between layers.
2.What problems occur when constructing in humid environments? How to avoid them?
When relative humidity >70%, uncured resin easily absorbs moisture from the air, causing surface dullness, white fog, or pinholes. It is recommended to construct at 20-25℃ with 30%-60% humidity; use a dehumidifier to control humidity in humid areas.
3.Can scratches on the cured coating be repaired?
Minor scratches can be repaired by sanding with 2000-grit sandpaper, then applying a thin layer of resin for recoating and curing. For deep scratches, fill with the same type of resin first, then sand and polish the entire surface to restore the original gloss.
4.What are the advantages compared to polyurethane clear coats?
Compared with polyurethane, it has stronger chemical resistance (especially to alcohol and solvents), higher hardness (scratch resistance), and longer yellowing resistance cycle. The disadvantage is slightly slower curing speed, but the comprehensive protection life can be extended by 2-3 times.
5.Can it be used in food contact scenarios, such as dining table surfaces?
Regular models are not recommended for direct food contact. Food-grade certified models (compliant with FDA 21 CFR 175.300) are available, with heavy metal content <10ppm and no harmful substances released after curing, meeting food contact surface requirements.
6.How to calculate resin dosage for different areas?
Use the formula "Dosage (kg) = Area (m²) × Thickness (mm) × 1.15" (1.15 is the resin density coefficient). For example, a 10m² tabletop with 2mm thickness requires 10×2×1.15=23kg. It is recommended to reserve an additional 10% dosage to account for losses.
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