523739 - Hardener Autoclear 2.0 2.5L

Benefits for body shops

• Hardener specifically formulated for Sikkens Autoclear 2.0 clears for perfect compatibility.
• Regular polymerization ensuring durable gloss, resistance to atmospheric agents and washing.
• Versatile use: localized touch-ups, multiple panels, or complete paint jobs according to the application method.
• Contributes to good productivity thanks to controlled drying times in the booth.
• Premium finish quality, meeting the requirements of professional body shops.

Main technical characteristics

• Product reference: SIKKENS 523739 Autoclear 2.0 Hardener.
• Packaging: 2.5 L can of hardener for Autoclear 2.0 clears.
• Product type: 2K hardener / catalyst for automotive clears.
• Use: in combination with Sikkens Autoclear 2.0 clears on compatible waterborne or solvent-based bases.
• Appearance: colorless to slightly tinted liquid, ready to be mixed with clears according to the ratios indicated on the technical sheet.
• Application: suitable for professional automotive repair work in a paint booth.

Usage tips (general guidelines)

1. System selection: use exclusively this hardener with the Sikkens Autoclear 2.0 clear and the reducers recommended by the manufacturer.
2. Mixing: strictly adhere to the clear/hardener (and thinner if applicable) ratios indicated on the Sikkens Autoclear 2.0 technical data sheet to ensure optimal curing and gloss.
3. Pot-life: use the mixture within the advised time frame on the technical data sheet, depending on the workshop temperature and the chosen thinner.
4. Drying: perform drying in the booth at the recommended temperature (e.g., 40 °C or 60 °C, depending on the process and applied thickness), until sufficiently hardened for handling and reassembly.
5. Final inspection: after complete cooling, the clear-coated surface can be locally sanded and polished if necessary to correct minor defects while preserving gloss.

Note: always refer to the technical data sheet (TDS) and the safety data sheet (SDS) Sikkens Autoclear 2.0 for precise ratios, application conditions, detailed drying times, and safety instructions.

Safety & regulatory recommendations

• Product reserved for automotive body repair professionals trained in the use of 2K systems.
• Wearing PPE is mandatory: gloves, coveralls, glasses and eye protection, and a respirator suitable for automotive paints.
• Use only in ventilated areas or in a booth compliant with current regulations.
• Comply with local regulations regarding VOCs, storage, and disposal of paint and solvent waste.
• Keep the can tightly closed, away from heat, flames, and frost.

English version – Sikkens Autoclear 2.0 Hardener 2.5L – 523739

Sikkens 523739 Autoclear 2.0 Hardener is the dedicated catalyst for Autoclear 2.0 clearcoat, designed to deliver reliable curing and a durable high-gloss finish on professional automotive repairs. Used in combination with Autoclear 2.0, it ensures excellent hardness, long-term durability and an OEM-like appearance.

Benefits for bodyshops

• Specifically formulated hardener for Sikkens Autoclear 2.0 clearcoat, ensuring full system compatibility.
• Consistent curing, providing long-lasting gloss and resistance to weathering and frequent washing.
• Suitable for a wide range of repairs, from spot repairs to multi-panel and overall resprays.
• Helps optimize booth cycle times and overall productivity thanks to controlled drying times.
• Premium finish quality meeting professional refinish standards.

Key features

• Product reference: SIKKENS 523739 Autoclear 2.0 Hardener.
• Packaging: 2.5 L can of hardener for Autoclear 2.0 clearcoat.
• Type: 2K hardener / catalyst for automotive clearcoat systems.
• Use: to be mixed with Sikkens Autoclear 2.0 clearcoat over compatible basecoat systems.
• Application area: professional automotive refinish work in spray booth conditions.
• Appearance: clear to slightly tinted liquid, ready to be mixed according to the technical data sheet.

Application advice (general guidance)

1. System selection: use only with Sikkens Autoclear 2.0 clearcoat and the recommended reducers, as specified by the manufacturer.
2. Mixing: strictly follow the mixing ratios clearcoat / hardener (and reducer if required) as given in the official Sikkens Autoclear 2.0 technical data sheet.
3. Pot-life: observe the indicated pot-life, which depends on the ambient temperature and reducer speed, and avoid using the mixture once this time has elapsed.
4. Drying: force-dry in the spray booth at the recommended temperature (for example 40 °C or 60 °C) until sufficient through-cure is achieved for handling and reassembly.
5. Finishing: after full cooling and curing, the surface may be lightly denibbed and polished if required to correct minor defects and maximize gloss.

Note: always consult the official Sikkens technical data sheet (TDS) and safety data sheet (SDS) for Autoclear 2.0 for exact mixing ratios, application parameters, drying times and full safety guidelines.

Safety & regulatory information

• For professional automotive refinish use only, in properly equipped and ventilated bodyshops.
• Wear suitable personal protective equipment (PPE): gloves, coveralls, glasses and eye protection and appropriate respiratory protection.
• Comply with local VOC, storage and waste disposal regulations for paints and solvents.
• Store in the original, tightly closed container, away from heat sources, ignition and frost.

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