Place of Origin:
Germany
Brand Name:
Glasurit
Certification:
MSDS, TDS
Model Number:
923-666
Glasurit 923-666 High Solids VOC Clear Coat is a two-component polyurethane clear coat developed for premium automotive basecoat/clearcoat refinishing. It is designed for repair facilities that need a deep, transparent, high-gloss final layer on repaired panels, refinished vehicles, and high-value custom paintwork.
Matched with Glasurit 929-666 VOC Hardener, this system uses a 2:1 mixing ratio by volume. Its high-solids profile supports efficient film build, while the recommended two-coat workflow and short intercoat flash-off time help body shops maintain production rhythm.
It is not simply a “high-gloss clear coat." It is a professional finishing layer for protecting the basecoat, developing visual depth, and restoring the appearance of passenger vehicles, premium commercial vehicles, motorcycles, and selected decorative components.
For repaired doors, fenders, hoods, bumpers, quarter panels, and other exterior panels where finish appearance must match the surrounding vehicle as closely as possible.
Suitable for high-standard repairs involving premium passenger vehicles, including luxury sedans, SUVs, sports cars, and performance vehicles.
A suitable clear-coat option for complete-panel refinishing after compatible basecoat application.
Can be used for whole-vehicle restoration and high-end color-change projects within a correctly matched basecoat/clearcoat system.
Suitable for motorcycle body panels, custom airbrush designs, decals, and graphic layers after compatibility testing.
May be used on compatible carbon-fiber and decorative parts when substrate preparation, basecoat compatibility, and system testing have been confirmed.
| Refinish Objective | How 923-666 Supports It |
|---|---|
| Strong visual gloss | Forms a transparent high-gloss clear layer over compatible basecoats |
| Richer color appearance | Helps enhance the depth and visual saturation of solid, metallic, and pearl colors |
| Efficient film build | High-solids profile supports the recommended 40–60 μm dry-film thickness |
| Fast booth rhythm | Approx. 3-minute flash-off between coats at 20°C |
| Flexible curing | Supports air drying, 60°C baking, short-wave IR, and medium-wave IR routes |
| Practical finishing | Can be polished after adequate curing and cooling |
| Vertical-panel application | “½ + 1" application guidance is available where stated in the official process documentation |
| Component | Product |
|---|---|
| Clear Coat | Glasurit 923-666 High Solids VOC Clear Coat |
| Hardener | Glasurit 929-666 VOC Hardener |
| Mixing Ratio | 2 parts clear coat : 1 part hardener by volume |
| Pot Life | Approx. 2 hours at 20°C |
| Ready-for-Use VOC | ≤419 g/L, based on supplied product information |
Use clean measuring equipment. Mix thoroughly until the material is uniform. Do not mix more material than can be used within the stated pot life. Higher ambient temperatures, warm panels, and direct heat exposure can shorten usable working time.
| Parameter | Recommended Setting |
|---|---|
| Spray Gun Type | HVLP |
| Spray Pressure | 2 bar |
| Fan Air Pressure | 0.7 bar |
| Fluid Tip | 1.3–1.4 mm |
| Application Viscosity | DIN 4, 20°C: 20–22 seconds |
| Number of Coats | 2 coats |
| Intercoat Flash-Off | Approx. 3 minutes at 20°C |
| Target Dry Film Thickness | 40–60 μm |
| Spray Distance | Follow spray-gun manufacturer and body shop process requirements |
The final result depends on the complete process: basecoat condition, gun adjustment, booth airflow, temperature, humidity, painter technique, applied film build, and drying method.
Apply clear coat only after the selected basecoat has flashed according to its technical data sheet. The surface should be clean, dry, dust-free, and free from wax, silicone, oil, moisture, sanding residue, and overspray.
Mix 923-666 Clear Coat with 929-666 Hardener at 2:1 by volume. Confirm the material reaches the recommended application viscosity of 20–22 seconds DIN 4 at 20°C.
Use HVLP equipment with a 1.3–1.4 mm nozzle. Set the spray pressure to 2 bar and the fan air pressure to 0.7 bar, while considering the gun manufacturer’s own settings.
Apply two coats with even overlap and stable gun movement. Avoid trying to create the full film build in a single heavy coat.
For approved vertical-panel work, the product documentation indicates a “½ + 1" application option. Follow the current technical instructions for this method.
At 20°C, allow approximately 3 minutes between coats. Flash-off requirements can change with temperature, humidity, airflow, panel temperature, and film thickness.
Use the drying option that fits the repair workflow and available equipment.
| Drying Route | Stated Condition |
|---|---|
| Air Dry | Approx. 10 hours at 20°C |
| Force Dry | Approx. 30 minutes at 60°C |
| Short-Wave Infrared | Approx. 8 minutes |
| Medium-Wave Infrared | Approx. 10–15 minutes |
After baking or infrared curing, allow the panel to cool before polishing. Inspect for dust, texture, minor runs, or other defects before selecting the appropriate finishing process.
A high-solids clear coat is designed to help achieve the required film build with a controlled number of coats. For 923-666, the recommended process is two coats with a target dry-film thickness of 40–60 μm.
Approximately three minutes of flash-off at 20°C supports continuous spray work and can reduce unnecessary waiting time between the two recommended coats.
The product supports air drying, force drying, and two infrared options. This helps workshops align the clear-coat process with production needs, whether they operate a spray booth, a bake booth, or infrared curing equipment.
The product is intended for refinishing projects where high gloss, transparency, color depth, and surface appearance are important purchasing criteria.
| Finish Issue | Likely Process Cause | Corrective Direction |
|---|---|---|
| Orange peel | High viscosity, poor atomization, low gun pressure, incorrect distance | Recheck DIN viscosity, fluid tip, pressure, and spray technique |
| Runs / sags | Excessive wet film, slow gun movement, uneven overlap | Apply controlled coats and maintain consistent gun speed |
| Solvent popping / pinholes | Heavy film build, inadequate flash-off, aggressive force drying | Follow the two-coat process and allow appropriate flash-off |
| Dust nibs | Inadequate booth cleanliness, poor tack-rag process | Improve cleaning, filtering, and panel wiping process |
| Gloss loss / dieback | Insufficient curing, contamination, poor basecoat flash | Confirm drying conditions and basecoat readiness |
| Poor blending appearance | Panel preparation or basecoat application issue | Correct basecoat blending before applying clear coat |
| Polishing marks | Polishing too early or using excessive pressure | Allow proper cure and use a staged polishing process |
| Purchase Consideration | 923-666 Value Proposition |
|---|---|
| Brand Positioning | Glasurit / BASF premium automotive refinishing ecosystem |
| Clear-Coat Type | High-solids 2K polyurethane VOC clear coat |
| Visual Result | High-gloss, transparent, full-bodied clear layer |
| Repair Throughput | Two-coat process and short 20°C intercoat flash-off |
| Drying Flexibility | Air dry, bake, short-wave IR, or medium-wave IR |
| Typical Customer | Premium body shops, luxury vehicle specialists, authorized repair centers, restoration workshops |
| Product System | Matched with 929-666 VOC Hardener at 2:1 by volume |
In the premium high-solids clear-coat segment, common comparison products include selected PPG DC-series clear coats, Spies Hecker Permasolid HS clear coats, and Sikkens Autoclear HS systems.
923-666 is especially relevant for buyers using, or planning to use, a Glasurit-compatible refinishing workflow. Its practical commercial strengths are the high-solids film-build approach, high-gloss finishing position, short stated flash-off interval, and multiple curing paths.
Performance comparisons across brands should be validated by current official technical sheets, controlled spray-out testing, regional VOC requirements, and the complete basecoat/hardener/reducer system used.
| Item | Specification |
|---|---|
| Product Name | Glasurit 923-666 High Solids VOC Clear Coat 5L |
| Brand | Glasurit |
| Manufacturer | BASF |
| Model | 923-666 |
| Product Category | Automotive high-solids 2K polyurethane clear coat |
| Intended System | Automotive basecoat/clearcoat refinishing |
| Matched Hardener | 929-666 VOC Hardener |
| Mixing Ratio | 2:1 by volume |
| Pot Life | Approx. 2 hours at 20°C |
| Spray Gun | HVLP |
| Spray Pressure | 2 bar |
| Fan Air Pressure | 0.7 bar |
| Nozzle Size | 1.3–1.4 mm |
| Application Viscosity | DIN 4, 20°C: 20–22 seconds |
| Recommended Coats | 2 |
| Flash-Off | Approx. 3 minutes at 20°C |
| Recommended Dry Film Thickness | 40–60 μm |
| Ready-for-Use VOC | ≤419 g/L, as supplied |
| Reference HS Code | 3208909010 |
| Product | Packing | Outer Carton Size* | Unopened Shelf Life |
|---|---|---|---|
| 923-666 Clear Coat | 5L * 3 / carton | 39.5 * 17.5 * 31.3 | 36 months |
| 929-666 VOC Hardener | 2.5L * 3 / carton | 35.3 * 18.5 * 17.5 | 24 months |
*Confirm the final unit of measurement on export packing documents before publishing; the source specification has been retained as supplied.
Store unopened containers in their original packaging in a dry, cool, well-ventilated area. Keep away from heat, direct sunlight, sparks, flames, moisture, and incompatible materials. Seal containers tightly after opening.
Use Glasurit 929-666 VOC Hardener at a 2:1 volume ratio.
The supplied data confirms the 2:1 clear-coat-to-hardener ratio and the target application viscosity of 20–22 seconds DIN 4 at 20°C. Any reducer selection or addition should follow the latest official technical data sheet for the complete system.
No. The recommended process is two coats. One excessive coat increases the risk of runs, solvent retention, uneven film build, and surface defects.
At 20°C, the stated intercoat flash-off is approximately 3 minutes. Adjustments may be necessary according to actual spray booth conditions and the applicable technical sheet.
Yes. The stated drying data includes approximately 8 minutes with short-wave infrared and 10–15 minutes with medium-wave infrared.
Common causes include heavy application, insufficient flash-off, excessive film thickness, high panel temperature, and aggressive baking before solvent release. Follow the recommended coat count and curing process.
Only after confirming system compatibility through the relevant product documentation and a controlled test spray. For production use, use compatible basecoat/clear-coat processes.
No. The stated ready-for-use VOC value is ≤419 g/L, but legal limits and approval requirements vary by region. Confirm regulatory suitability before importing, selling, or using the product.
For legitimate, authorized supply channels, available documents may include:
Technical Data Sheet (TDS)
Safety Data Sheet (SDS / MSDS)
ISO-related documentation
Sea freight transport documentation
Batch and packing information
Glasurit and BASF trademarks belong to their respective owners. Distribution, export, repacking, online listing, and use of branded materials must comply with applicable authorization, traceability, and local regulatory requirements.
For premium automotive repair work requiring a high-solids, high-gloss 2K clear-coat finish, request current availability and authorized supply information for Glasurit 923-666 Clear Coat with 929-666 Hardener.
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