Hardeners - the perfect complement for your paints
Hardeners are crucial when it comes to optimising the durability and resistance of paints and varnishes. They are often used as an additive for 2-component paints to improve their drying and curing properties. Hardeners enable fast and stable curing of the coating, resulting in a resistant and durable surface.
The advantages of hardeners:
- Increased strength: Hardeners provide a strong, resilient surface that can withstand everyday wear and tear.
- Faster curing: They speed up the drying process and reduce waiting times when painting.
- Improved chemical resistance: With the right hardener, paints become more resistant to chemicals and mechanical stress.
- Compatibility: Our hardeners are matched to different paints to ensure optimum reaction and excellent results.
Discover matching primers, top coats and speciality products in our complete paints & varnishes overview.
ADLER Aqua Crosslinker 8481
ADLER Aqua Crosslinker 8481 – Greater resistance for water-based paint systems ADLER Aqua Crosslinker 8481 is a high-performance additional hardener for selected water-based paint systems from ADLER. Its special formulation improves the chemical cross-linking of the paint layer, resulting in particularly resistant and durable surfaces. The crosslinker offers a clear advantage, especially for heavily used components such as furniture, work surfaces or interior fittings. The paint surface becomes more resistant to mechanical stress, household chemicals and moisture. This makes ADLER Aqua Crosslinker 8481 ideal for professional applications in furniture construction, carpentry and industrial wood coating. Advantages Improves the hardness and durability of water-based paints Increases resistance to chemicals and moisture Optimises the cross-linking and durability of the paint surface Ideal for furniture, interior design and high-quality wood surfaces Perfectly matched to ADLER water-based paint systems Contents 160g, 880g
ADLER Aqua-Hardener 8452
ADLER Aqua Hardener 8452 – Reliable hardener for water-based paint systems ADLER Aqua Hardener 8452 is a specially developed hardener for selected water-based paint systems from ADLER. Adding the hardener optimises the cross-linking of the paint film, resulting in significantly more robust and durable surfaces. The hardener improves resistance to mechanical stress, moisture and common household chemicals, particularly on heavily used wooden surfaces in furniture construction or interior design. This makes ADLER Aqua Hardener 8452 ideal for professional applications in carpentry, furniture production and industrial wood coating. Advantages Improves the hardness and durability of water-based paints Increases chemical and mechanical resistance Supports an even and durable paint surface Ideal for furniture, interior design and wood surfaces Perfectly matched to ADLER water-based paint systems Contents 400g
Contents: 400 gram (€0.07 / 1 gram)
ADLER Aqua-Hardener 8451
ADLER Aqua Hardener 8451 – High-quality hardener for water-based paint systems ADLER Aqua Hardener 8451 is a high-performance hardener for use with selected water-based paint systems from ADLER. Adding the hardener improves the chemical cross-linking of the paint film, creating particularly resistant and durable surfaces. The hardener ensures significantly higher resistance to mechanical stress, household chemicals and moisture, especially on heavily used furniture surfaces, building components or interior fittings. This makes ADLER Aqua Hardener 8451 ideal for professional applications in carpentry, joinery and industry. Advantages Increases the hardness and resistance of water-based varnishes Improved chemical and mechanical resistance Ideal for furniture, interior fittings and heavily used surfaces Supports an even and durable varnish surface Optimally matched to ADLER water-based varnish systems Contents 1 kg
ADLER Aqua-Hardener 8450
ADLER Aqua Hardener 8450 – High-performance hardener for water-based paints ADLER Aqua Hardener 8450 is a high-quality hardener for water-based paint systems in professional furniture and interior design. In combination with suitable ADLER furniture paints, it ensures significantly improved resistance, faster curing and long-lasting surface quality. The product has been specially developed for use in industrial and craft applications and is ideal for demanding coatings on furniture, interior fittings, windows and doors. The targeted cross-linking of the paint components creates a robust, resilient surface with increased resistance to mechanical and chemical influences. Advantages Optimises the hardness and resilience of water-based paints Improved chemical and mechanical resistance Ideal for furniture surfaces, interior fittings and window and door coatings Specially formulated for ADLER water-based paint systems For professional applications in industry and trade Contents 200g & 1.1kg
ADLER Concrete Coating Hardener 8447
ADLER Vivido EP Hardener 8447 – Hardener for robust epoxy resin coatings ADLER Vivido EP Hardener 8447 is a high-performance hardener for epoxy resin coating systems and has been specially developed for use in floor and concrete coatings. In combination with compatible ADLER epoxy resin products, it ensures a reliable chemical reaction and a particularly resistant surface structure. The controlled cross-linking of the epoxy resin creates a hard-wearing and durable coating that is ideal for heavily used areas. Typical areas of application are workshops, garages, industrial areas, storage areas or high-quality interior floor coatings. Advantages High-quality epoxy resin hardener for floor coatings Optimal cross-linking for robust and durable surfaces High mechanical strength and resistance Ideal for concrete, industrial and garage floors Professional quality for trade, commerce and industry Contents 6kg
Contents: 6 kilogram (€24.69 / 1 kilogram)
ADLER Vivido Epoxy Hardener 8442
ADLER Vivido Epoxy Hardener 8442 – Hardener for epoxy resin coatings ADLER Vivido Epoxy Hardener 8442 is a high-quality hardener for epoxy resin coating systems and is used as a reactive component in combination with suitable ADLER epoxy resin products. The chemical reaction between the resin and the hardener produces a particularly resistant coating with high adhesion and stability. The system is ideal for interior design and furniture applications as well as for decorative and functional coatings. After curing, a robust surface is created with high resistance to mechanical stress and everyday use. Thanks to its precisely balanced formula, the Epoxy Hardener ensures reliable cross-linking of the epoxy resin and provides an even and durable coating. Advantages High-quality hardener for epoxy resin systems Reliable chemical cross-linking for stable coatings Very good adhesion and mechanical resistance Ideal for furniture, interior design and decorative surfaces Professional quality for trade and industry Contents 450g
Contents: 450 gram (€0.04 / 1 gram)
ADLER PUR Hardener 8439
ADLER PUR Hardener 8439 – Reliable hardener for 2K-PUR coating systems ADLER PUR Hardener 8439 is a high-quality hardener for solvent-based 2K-PUR coatings and has been specially developed for professional coatings in furniture and interior design. As a reactive component, it ensures stable chemical cross-linking of the paint film in combination with suitable ADLER paint systems, thereby enabling particularly resistant surfaces. Thanks to its precisely balanced formula, the hardener significantly improves the mechanical strength, durability and resistance of the coating. This makes the product ideal for high-quality wood surfaces that are subject to heavy everyday wear and tear, such as furniture, interior fittings or demanding carpentry work. Advantages Specially developed for ADLER 2K-PUR coating systems Improves the hardness, resistance and durability of the coating surface Ideal for furniture coatings and interior fittings Reliable chemical cross-linking of the coating Professional quality for trade and industry Contents 1kg
ADLER PUR Hardener 8433
ADLER PUR Hardener 8433 – High-performance hardener for 2K-PUR lacquers ADLER PUR Hardener 8433 is a professional hardener for solvent-based 2K-PUR lacquer systems in furniture and interior design. It serves as a reactive component for the chemical cross-linking of the paint and, in combination with suitable ADLER coatings, ensures particularly resistant and durable surfaces. Thanks to its precisely balanced formulation, this polyisocyanate hardener enables reliable curing of PUR paints. The result is high-quality paint surfaces with high mechanical strength and very good resistance to daily wear and tear. This makes the product ideal for use in carpentry, joinery and industrial furniture production. Advantages Specially developed for ADLER 2K-PUR coating systems Improves the hardness, resistance and durability of the coating surface Ideal for furniture coatings and interior fittings Reliable chemical cross-linking of the coating Professional quality for trade and industry Contents 5kg
Contents: 5 kilogram (€25.68 / 1 kilogram)
ADLER PUR Hardener 8429
ADLER PUR Hardener 8429 – High-quality hardener for 2K-PUR coating systems ADLER PUR Hardener 8429 is a high-performance hardener for solvent-based 2K-PUR coatings and has been specially developed for professional applications in the wood and furniture sector. In combination with compatible ADLER coating systems, it ensures reliable chemical cross-linking of the coating and enables particularly resistant surfaces. The polyisocyanate hardener is mainly used in crafts, industry and professional interior design. When mixed with the appropriate varnish, it creates a durable coating with high resistance to mechanical stress and daily use. Advantages Specially developed for ADLER 2K-PUR varnish systems Improves the hardness, resistance and durability of the varnish surface Ideal for furniture coatings and interior design Reliable chemical cross-linking of the varnish Professional quality for crafts and industry Contents 1kg
Zweihorn Performer waterborne paints PW 4000
DescriptionAbsolutely label-free additive for all Futurecryl and FuturecrylColor water-based paints. Improves the solvent resistance.
Peter Lacke Hardener P 850980
Peter Lacke Härter P 850980Application areaGlass (high chemical resistance)Propertiesfor glass, high chemicalresistanceDrying time*: 10 hours.Content1 litre
Peter Lacke Hardener P 85089
Peter Lacke Härter P 85089Area of applicationInterior wood-based materialsPropertiesFast dryingDrying time*: 10 hours.Content1 litre / 10 litres
Peter Lacke Hardener P 85067
Peter Lacke Härter P 85067Area of applicationElastic plasticsPropertiesfor elastic plastics,e.g. PVC films, PUR-flexible,Drying time*: 48 hours.Content1 litre / 2.5 litres
Peter Lacke Hardener P 85012
Peter Lacke Härter P 85012Area of applicationPlasticsPropertiesfor plastics, fast drying,high chemical resistance,Drying time*: 8 hours.Contents1 litre / 2.5 litres / 10 litres
Peter Lacke Standard Hardener P 85057
Peter Lacke Standard Härter P 85057Areas of applicationInterior/exterior coatingPropertiesStandard hardener for interior/exterior,high chemical and mechanicalresistance, lightfast, very goodadhesion properties,drying time*: 16 hours.
Peter Lacke Hardener P 850770
Peter Lacke Härter P 850770Area of applicationGlass (high water resistance)Propertiesfor interior glass, lightfast,high water resistanceDrying time*: 16 hours.
FINIXA Hardener DEB 51
FINIXA Hardener White 30g DEB 51 is a reliable hardener for white surfaces. With this high-quality hardener, you can achieve excellent hardness and durability for your painting work on white surfaces. Discover the quality and reliability of FINIXA Hardener White 30g DEB 51 for professional results. Contents 30g Safety data sheet
Contents: 30 gram (€0.26 / 1 gram)
FINIXA Hardener red GAP 51
Operating rangeBenzoyl peroxide hardener for polyester-based levelling compounds.Active baseDibenzoyl peroxideContent50 g Technical data sheet Safety data sheet
Contents: 50 gram (€0.07 / 1 gram)
Zweihorn PUR Hardener 5085
Zweihorn PUR Hardener 5085 - reliable curing for high-quality coatings Zweihorn PUR Hardener 5085 is a high-performance hardener for 2-component PUR paint systems and ensures uniform, controlled cross-linking of the paint film. The targeted chemical reaction between the paint and hardener creates particularly resistant, durable and high-quality surfaces - ideal for professional use in trade and industry. As an indispensable component of 2K systems, Hardener 5085 ensures reliable curing and makes a significant contribution to the mechanical strength and chemical resistance of the coating. Advantages & properties Reliable cross-linking: Ensures complete curing of 2K PUR coatings. High surface resistance: Improves scratch, abrasion and chemical resistance. Uniform paint finish: Supports a smooth, professional finish without imperfections. Versatile: Suitable for numerous PUR paint systems from Zweihorn. Professional quality: Developed for consistent results in commercial use. Application & processing The hardener is mixed with the corresponding PUR lacquer immediately before processing. The mixing ratio, pot life and processing instructions can be found in the respective technical data sheet for the lacquer used. Depending on the paint system, it can be applied by spraying, rolling or brushing. Note: Exact dosing and thorough mixing are crucial for optimum curing and consistent paint quality. Technical data Product type: PUR hardener (polyurethane) Application: Additive for 2K PUR lacquers Effect: Chemical cross-linking & curing Manufacturer: Zweihorn Areas of application: Furniture, interior & contract coatings Container sizes 500ml / 2 litres / 12.5 litres
Zweihorn hardener S 7777 for plastic varnish -S7000
Mixing ratio2 parts lacquer (S 7000), 1 part hardener (S 7777)Content0.5 litres
Contents: 0.5 litre (€52.52 / 1 litre)
Zweihorn PUR waterborne paint hardener PWH 3200
Zweihorn PUR waterborne paint hardener 3200 is a high-quality hardener that can be used for almost all water-based Zweihorn fillers, coloured paints and clear coats. This one-hardener system offers a simple and efficient solution for painting. Discover the versatile application possibilities and the high quality of the PWH 3200 hardener from Zweihorn.
ADLER PUR Hardener 8419 (formerly 82019)
ADLER PUR Hardener 8419 – Hardener for professional 2-component PUR coatings Former product number: 82019 ADLER PUR Hardener 8419 is a high-quality hardener for solvent-based 2-component PUR coating systems. It is specifically used as a hardener component for professional varnishes in the furniture and interior design sectors and ensures reliable chemical cross-linking of the varnish system. This results in particularly resistant and durable surfaces. The hardener is optimally matched to ADLER PUR coating systems and is suitable for applications in both the trade and industrial sectors. In combination with suitable furniture lacquers, it creates a robust coating with high mechanical resistance. Advantages Specially developed for ADLER 2K-PUR coating systems Ensures high resistance and durable surfaces Ideal for furniture coatings and interior fittings Reliable chemical cross-linking of the lacquer Professional quality for trade and industry Contents 0.4kg, 1kg
Hesse Lignal Hydro Hardener HDR 5091
Hydro Hardener HDR 5091 is a hardener for Hydro Brilliant lacquers from Hesse Lignal.Hardener is an additive for lacquers with which the cross-linking and hardening of the lacquer is brought about by a chemical reaction. Hardener must be used with 2-component lacquers (2K), as the lacquer only hardens in combination with the hardener. When Hardener HDR 5091 must be used and in which mixing ratio it must be added, please refer to the technical data sheet of the paint to be used.
Hesse Lignal 2K-Hydro Hardener HDR 5081
The 2-component hydro hardener HDR 5081 is a hardener for hydro lacquers from Hesse Lignal.Hardener is an additive for lacquers with which the cross-linking and hardening of the lacquer is brought about by a chemical reaction. Hardener must be used with 2-component lacquers (2K), as the lacquer only hardens in combination with the hardener.Please refer to the technical data sheet for the paint to be used to find out when Hardener HDR 5081 must be used and in what mixing ratio it must be added.
Hesse Lignal PUR Hardener DR 4040 - Hardener for 2K PUR lacquers, professional quality
Hesse Lignal PUR Hardener DR 4040 - for perfect curing of 2-component lacquers Hesse Lignal PU Hardener DR 4040 is a specially developed additive for 2-component PU lacquers. Its chemical reaction ensures reliable cross-linking and even curing of the lacquer film - a decisive factor for the durability, resistance and surface quality of professional lacquer finishes. Advantages & properties Optimum cross-linking: Activates the chemical reaction between the paint and hardener for a durable, resistant paint finish. Professional results: Ensures high scratch, chemical and abrasion resistance of coated surfaces. Universally applicable: Suitable for many PUR lacquer systems from the Hesse Lignal range. Reliable quality: Developed and produced to the highest standards for industrial and trade applications. Simple application: Exact mixing ratio guarantees consistent, reproducible results. Areas of application Ideal for use with 2K PUR lacquers in the furniture, interior and contract sectors. The hardener is mixed with the respective PUR lacquer directly before use. Apply with a spray gun, roller or brush - depending on the paint system. 💡 Note: The mixing ratio and pot life can be found in the respective technical data sheets for the lacquers used. Technical data Product type: PUR hardener (polyurethane) Application: Additive for 2K PUR lacquers Effect: Chemical curing & cross-linking Manufacturer: Hesse Lignal Area of application: Wood and furniture surfaces, interior fittings With Hesse Lignal PU Hardener DR 4040 you can achieve perfect lacquering results - durable, resistant and professional. An indispensable component for anyone who demands the highest standards of quality and durability. Former designation DR 440
Hesse Lignal Hardener DR 471
Hesse Lignal Hardener DR 471 - a high-quality hardener specially developed for lacquers. Through a chemical reaction, the hardener enables effective cross-linking and hardening of the lacquer. This indispensable additive is a must for 2-component lacquers (2K), as the lacquer only hardens in combination with the hardener. Rely on the quality of Hesse Lignal and optimise your coating results with the DR 471 hardener. detailsHardener DR 471 for lacquers from Hesse LignalAdditive for lacquers for cross-linking and curingChemical reaction ensures effective hardeningRequired for 2-component lacquers (2K)Indispensable component for optimum coating resultsHigh quality from Hesse LignalDR 471 is suitable for the following lacquers from Hesse Lignal, among others:DP 492-9343 PUR insulating fillerDU 592 PUR diamond sealer
Hesse Lignal Hardener DR 4038 - 2K hardener for lacquers, ideal for DG 468-3
Hesse Lignal Hardener DR 4038 - for the highest demands in lacquer hardening Hesse Lignal Hardener DR 4038 is a high-performance additive for 2-component lacquer systems. Through a targeted chemical reaction, it ensures optimum cross-linking and hardening of the lacquer and thus guarantees maximum surface resistance and durability. This hardener was specially developed for use with Hesse Lignal DG 468-3 and ensures that the lacquer and hardener react perfectly with each other. The result: tough, smooth and durable surfaces with a professional finish. Advantages & properties Precise curing: Perfectly matched to 2K systems - ideal for the DG 468-3 lacquer. Chemical cross-linking: Ensures uniform, durable paint film curing. High surface quality: Improves scratch, chemical and abrasion resistance. Professional quality from Hesse Lignal: Reliable, consistent and easy to apply. For commercial applications: Particularly suitable for paint shops, joineries and high-quality interior finishing. Application & processing The hardener is mixed with the corresponding 2K lacquer immediately before processing. The mixing ratio, pot life and processing instructions are based on the technical data of the paint system used. Can be applied by spraying, rolling or brushing. 💡 Tip: Ensure clean mixing containers and precise weighing to achieve optimum curing and even gloss. Technical data Product type: 2K hardener based on polyurethane Application: Additive for 2-component lacquers Especially suitable for: Hesse Lignal DG 468-3 Contents: 5 litres Effect: Chemical curing & cross-linking Areas of application: Furniture, interior & contract lacquering Hesse Lignal Hardener DR 4038 is the ideal partner for high-quality PU lacquering. Its precise coordination with the DG 468-3 lacquer system ensures perfect curing, high resistance and a long-lasting, professional result. Former designation DR 438
Contents: 5 litre (€27.50 / 1 litre)
Hesse Lignal Hardener DR 4080 (formerly DR 404)
Hesse Lignal PUR Hardener DR 4080 is a high-quality hardener that has been specially developed for use with PUR lacquers. Its chemical reaction enables the cross-linking and hardening of the lacquer. This hardener is essential when using 2-component lacquers (2K), as the lacquer only hardens in combination with the hardener.Former nameThe hardener DR 4080 used to be called DR 404, but Hesse Lignal only changed the name.DetailsSpecially developed for PUR lacquers from Hesse LignalChemical reaction for cross-linking and curing the lacquerIndispensable for 2-component lacquers (2K)
Hesse Lignal PUR Hardener DR 4058 - Hardener for 2K lacquers
Hesse Lignal PU Hardener DR 4058 - for perfect hardening and maximum resistance Hesse Lignal PU Hardener DR 4058 is a high-quality hardener specially developed for 2-component lacquer systems. It ensures the complete cross-linking and curing of PU lacquers through a targeted chemical reaction. The result is particularly resistant, durable and smooth paint surfaces - ideal for professional use in trade and industry. DR 4058 is the successor to the tried and tested DR 405 hardener, but the composition and processing remain unchanged. Advantages & properties Reliable curing: Indispensable for 2-component paints for optimum chemical cross-linking. Excellent surface quality: Produces smooth, hard-wearing and chemical-resistant lacquer layers. Compatible with Hesse Lignal PUR lacquers: Suitable for numerous 2K systems from the manufacturer. Professional quality: Developed for commercial and industrial use in furniture and interior finishing. Application & instructions The hardener is combined with the corresponding PU lacquer in the specified mixing ratio before processing. After mixing, the material must be processed within the specified pot life. 💡 Tip: Ensure exact measuring and thorough mixing to achieve even hardening and perfect surface results. Technical data Product type: PUR hardener (polyurethane) Application: Additive for 2K lacquers Effect: Chemical curing & cross-linking Former designation: DR 405 Manufacturer: Hesse Lignal Fields of application: Furniture, interior & contract coatings
Hesse Lignal Hardener DR 4070
PUR Hardener DR 4070 is a hardener for lacquers from Hesse Lignal.Hardener is an additive for lacquers with which the cross-linking and hardening of the lacquer is brought about by a chemical reaction. Hardener must be used with 2-component lacquers (2K), as the lacquer only hardens in combination with the hardener.Suitable for:DG 434, NOVA-PUR-GrundDE 550, 552, 554, 557, 559, UNA PURDE 560, 562, 564, Mega PURDA 400-1DU 489 PUR Brilliant lacquerDB 555 in various colours, UNA ColorDB 42634 PUR metallic paintDG 534, UNA PUR Primer...