Place of Origin:
Guangdong Province，China
Brand Name:
Gate
Certification:
MSDS, TDS
Model Number:
ZTC959
High Solids Formula | High Gloss | High DOI | Full Film Appearance | Leveling Performance | Weather Resistance
Zuotong ZTC959 Ruby Clear Coat is a two-component (2K) automotive refinishing clearcoat formulated with an acrylic resin and polyester resin system. Designed for professional automotive repair and refinishing, it focuses on film fullness, gloss appearance, distinctness of image (DOI), leveling and weathering performance.
A high-quality automotive clearcoat does more than produce a glossy surface. The final finish also depends on film smoothness, reflected-image clarity, coating thickness, curing conditions and application technique.
ZTC959 is designed for workshops that require a high-quality transparent top layer for automotive spot repair, panel refinishing and whole-vehicle refurbishment.
The product is used with the compatible ZTH959 series hardeners and ZK301 series thinners. The recommended mixing ratio is 2:1:0–0.2 by volume for clearcoat, hardener and thinner.
| Item | Specification |
| Brand | Zuotong |
| Model | ZTC959 |
| Product Name | ZTC959 Ruby Clear Coat |
| Product Type | 2K Two-Component Automotive Refinish Clearcoat |
| Formulation Positioning | High-Solids Clearcoat |
| Resin System | Acrylic Resin + Polyester Resin |
| Appearance | Colorless to pale-yellow transparent liquid |
| Compatible Hardeners | ZTH959K / ZTH959B / ZTH959M |
| Compatible Thinners | ZK301K / ZK301B / ZK301M |
| Mixing Ratio by Volume | Clearcoat : Hardener : Thinner = 2 : 1 : 0–0.2 |
| Clearcoat Packaging | 5L per can |
| Hardener Packaging | 2.5L per can |
| Clearcoat Carton Quantity | 4 cans/carton |
| Hardener Carton Quantity | 8 cans/carton |
| Clearcoat Carton Dimensions | 35.3 × 22.7 × 32.8 cm |
| Hardener Carton Dimensions | 35.5 × 23.5 × 36 cm |
| Shelf Life | 2 years in unopened original packaging under specified storage conditions |
| Main Applications | Automotive spot repair, panel refinishing, whole-car refurbishment |
| HS Code | 3208909010 |
Standard kit reference: 5L ZTC959 clearcoat + 2.5L compatible hardener. Thinner is selected separately according to application requirements.
The appearance of a clearcoat depends on its formulation, application thickness, leveling behavior and curing conditions.
ZTC959 is positioned as a high-solids clearcoat designed to produce a full, continuous transparent film when applied according to the recommended process.
Fuller film appearance
The product is designed to provide a visually full clearcoat finish on properly prepared automotive surfaces.
Glossy surface appearance
The clear film contributes to the final gloss and visual depth of the paint system.
Smooth finish
Correct mixing, spraying and curing help the coating form a more uniform surface.
Professional repair applications
The product is intended for workshops where the final finish is an important part of repair quality.
Actual film appearance depends on application conditions, film thickness, substrate preparation and curing.
Gloss and distinctness of image (DOI) are related but different aspects of coating appearance.
A coating can appear glossy while reflected outlines still look distorted because of surface texture or orange peel.
ZTC959 emphasizes high DOI as part of its product positioning, alongside gloss and film fullness.
DOI results depend on both the clearcoat and the finished surface. The product's high-DOI positioning should not be interpreted as a guaranteed numerical DOI value unless supported by a specific test report.
Orange peel is a textured surface appearance resembling the skin of an orange. It can reduce surface smoothness and affect reflected-image clarity.
Common contributing factors include:
ZTC959 emphasizes leveling and a smooth film appearance when used with its compatible hardener and thinner system.
Clearcoat formulation is only one factor in leveling. Application technique and environmental conditions also influence the result.
Automotive exterior coatings are exposed to sunlight, temperature changes, moisture, washing and environmental contaminants.
Over time, an unsuitable coating system may experience gloss loss, surface aging or changes in appearance.
ZTC959's product description emphasizes weathering performance and gloss retention as key product characteristics.
As the transparent top layer of an automotive coating system, clearcoat contributes to the protection of the underlying color layer and the maintenance of the overall finish.
Actual long-term durability depends on the complete coating system, exposure conditions, application quality and maintenance. Specific weathering-test results should be confirmed through the applicable technical documentation.
ZTC959 is a 2K clearcoat and must be mixed with the compatible hardener before use.
The hardener participates in the curing reaction that develops the final coating film.
Incorrect mixing may interfere with normal curing and affect film hardness, solvent resistance, polishing behavior and durability.
Clearcoat : Hardener : Thinner = 2 : 1 : 0–0.2 by volume
| ZTC959 Clearcoat | Hardener | Thinner |
| 200 ml | 100 ml | 0–20 ml |
| 400 ml | 200 ml | 0–40 ml |
| 600 ml | 300 ml | 0–60 ml |
| 1,000 ml | 500 ml | 0–100 ml |
| 2,000 ml | 1,000 ml | 0–200 ml |
Thinner is optional within the stated range. Its use and quantity should be determined by the application conditions and product instructions.
Do not substitute an unrelated hardener without confirming compatibility.
ZTC959 has three compatible hardener options with corresponding thinner options.
| Working Temperature | Recommended Hardener | Recommended Thinner | Type |
| Below 18°C | ZTH959K | ZK301K | Fast |
| 18–30°C | ZTH959B | ZK301B | Standard |
| Above 30°C | ZTH959M | ZK301M | Slow |
The fast system is intended for relatively low-temperature working conditions.
The standard system is intended for typical working temperatures between 18°C and 30°C.
The slow system is intended for working temperatures above 30°C, where solvent evaporation and film leveling require additional consideration.
Follow the current product instructions when selecting the system. The source technical description does not recommend relying solely on natural drying below 15°C; use an appropriate baking process where required.
Once clearcoat and hardener are mixed, the curing reaction begins. The mixture should be used within its applicable pot life.
| Hardener | Reference Pot Life at 25°C |
| ZTH959K Fast | Approximately 3 hours |
| ZTH959B Standard | Approximately 4 hours |
| ZTH959M Slow | Approximately 4 hours |
Pot life is not the same as surface-drying time or full-curing time.
| Process Parameter | Product Reference |
| Spray Gun Type | Gravity-feed spray gun |
| Nozzle Size | 1.2–1.4 mm |
| Spray Pressure | 1.8–2.5 bar |
| Recommended Coats | 2–3 |
| Flash-Off Between Coats | 5–10 minutes |
| Waiting Before Baking | 15–20 minutes |
| Mixing Ratio | 2:1:0–0.2 by volume |
These are reference parameters from the supplied product information. Actual settings should be checked against the current technical data sheet, spray-gun requirements and workshop conditions.
Remove oil, wax, dust and other contamination with compatible cleaning materials. Ensure the surface is ready for clearcoat application.
Confirm that the underlying colorcoat has reached the condition required for clearcoating. Use only compatible, adequately prepared coating layers.
Mix ZTC959 with the appropriate ZTH959 hardener at 2:1 by volume. Add compatible ZK301 thinner only as required within the recommended range.
Use a compatible 1.2–1.4 mm gravity-feed spray gun. Adjust the spray pattern, fluid output and air pressure to suit the material and equipment.
Allow approximately 5–10 minutes between coats as a reference, checking the coating condition and working environment.
Apply a total of 2–3 coats according to the recommended process. Maintain consistent gun movement and avoid excessive film build.
For baking, allow approximately 15–20 minutes of waiting time after the final coat before starting the baking process, according to the supplied product guidance.
After the coating reaches a suitable curing condition, inspect gloss, surface texture, dust inclusions, runs and other defects. Perform sanding and polishing only when the film is sufficiently cured.
| Drying Condition | Surface-Dry Time | Polishing Time |
| 25°C Natural Drying | Approximately 20–30 minutes | Approximately 10–14 hours |
| 60°C Baking | Approximately 5–15 minutes | Approximately 30–40 minutes |
These times are reference values from the supplied product information. Actual results may vary with film thickness, hardener choice, ventilation, actual panel temperature and baking conditions.
Surface-dry time does not indicate complete curing.
Suitable for repair projects where gloss, film fullness and reflected-image clarity are important appearance considerations.
Can be used for compatible full-panel and whole-vehicle clearcoat applications. Consistent spray technique and curing conditions are important across different panels.
Suitable for clearcoating properly prepared automotive colorcoat after body repair, filler work and primer preparation.
Can be used over compatible automotive metallic, pearl and solid-color basecoat systems. The clearcoat contributes to the final gloss and transparent surface appearance, while the underlying colorcoat provides the primary color effect.
Typical repair areas include doors, hoods, fenders, roofs, trunk lids and other body panels, subject to coating-system compatibility.
| Comparison Item | ZTC959 Ruby Clear Coat | Economy Clearcoat |
| Product Positioning | High-quality automotive refinishing | General-purpose repair, depending on product |
| Formulation Direction | High-solids positioning | Varies by formulation |
| Film Appearance | Emphasis on fullness | Depends on the product |
| Gloss | High-gloss positioning | Depends on the product |
| DOI | A key product selling point | May or may not be a key selling point |
| Leveling | Emphasis on smooth film appearance | Depends on formulation and application |
| Weathering | Weathering and gloss retention emphasized | Depends on product performance |
| Typical Buyer Priority | Finish quality and appearance | Basic performance and cost |
This is a product-positioning comparison, not a verified laboratory ranking against a specific competing clearcoat. For a technical performance comparison, review the respective TDS and test reports.
| Problem | Possible Causes | Recommended Checks |
| Orange peel | Viscosity, gun setup or leveling conditions | Review mixing, pressure, distance and temperature |
| Runs or sags | Excessive film build or slow gun movement | Control fluid output, movement and film thickness |
| Gloss loss | Substrate condition, curing or system compatibility | Check preparation, mixing and curing |
| Bubbles | Trapped solvent, insufficient flash-off or excessive film thickness | Review layer thickness and flash-off |
| Pinholes | Contamination, gas release or abnormal application conditions | Inspect substrate and coating preparation |
| Slow drying | Temperature, hardener selection or mixing error | Confirm ratio and working conditions |
| Polishing scratches | Abrasive selection or polishing process | Refine sanding scratches progressively |
| Uneven gloss | Uneven film build or inconsistent leveling | Maintain consistent application and curing |
After the clearcoat has cured sufficiently, minor dust inclusions or suitable surface defects may be corrected through controlled sanding and polishing.
The supplied product information recommends P1200–P2000 sandpaper for suitable fine-sanding work.
Recommended process:
Severe runs, deep defects or substantial film irregularities may require a different repair approach. Polishing should not be used to compensate for every coating defect.
ZTC959 is a solvent-based automotive coating. Use it in an appropriate spray area with suitable ventilation and personal protective equipment.
ZTC959 may be suitable for:
For quotation and product matching, buyers should confirm the required hardener type, thinner type, packaging quantity, destination market and applicable shipping requirements.
ZTC959 is a 2K high-solids automotive refinishing clearcoat using an acrylic resin and polyester resin system. It emphasizes gloss, film fullness, DOI appearance, leveling and weathering performance.
The recommended volume ratio is 2 parts clearcoat, 1 part compatible hardener and 0–0.2 parts compatible thinner.
The compatible options are ZTH959K fast, ZTH959B standard and ZTH959M slow. The choice depends on working temperature and the product instructions.
No. The supplied mixing range is 0–0.2 parts thinner by volume. Add thinner only as required within the recommended range.
The supplied reference recommends 2–3 coats, with approximately 5–10 minutes of flash-off between coats. Actual application should follow the current technical data sheet.
The supplied product reference specifies a gravity-feed spray gun with a 1.2–1.4 mm nozzle and a reference spray pressure of 1.8–2.5 bar.
The supplied reference gives approximately 10–14 hours at 25°C under natural drying, or 30–40 minutes under the stated 60°C baking conditions. Actual time depends on application and curing conditions.
The clearcoat is packed in 5L cans, with 4 cans per carton. The compatible hardener is packed in 2.5L cans, with 8 cans per carton. The standard pairing is 5L clearcoat with 2.5L hardener by the recommended 2:1 volume ratio.
Zuotong ZTC959 Ruby Clear Coat is a 2K high-solids automotive refinishing clearcoat designed for professional repair and refinishing applications.
Its main product positioning includes:
For workshops and distributors seeking a clearcoat focused on finish quality, ZTC959 offers a product option for automotive spot repair, panel refinishing and whole-vehicle refurbishment.
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