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Hardtop AX Product description This is a two component chemically curing alipha

Hardtop AX Product description This is a two component chemically curing aliphatic acrylic polyurethane coating. It has a high gloss finish with very good gloss retention. It has good chemical resistance. It is a high solids product. To be used as topcoat in atmospheric environments. Technical Data Sheet Application Guide 16480;18120 1,2 16480 Scope The Application Guide offers product details and recommended practices for the use of the product. The Application Guide (AG) must be read in conjunction with the relevant specification, Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for all the products used as part of the coating system. Referred standards Reference is generally made to ISO Standards. When using standards from other regions it is recommended to reference only one corresponding standard for the substrate being treated. polyurethane Surface preparation and coating should normally be commenced only after all welding, degreasing, removal of sharp edges, weld spatter and treatment of welds is complete. It is important that all hot work is completed before coating commences. The required quality of surface preparation can vary depending on the area of use, expected durability and if applicable, project specification. Surface preparation Process sequence When preparing new surfaces, maintaining already coated surfaces or aged coatings it is necessary to remove all contamination that can interfere with coating adhesion, and prepare a sound substrate for the subsequent product. Inspect the surface for hydrocarbon and other contamination and if present, remove with an alkaline detergent. Agitate the surface to activate the cleaner and before it dries, wash the treated area using fresh water. Paint solvents (thinners) shall not be used for general degreasing or preparation of the surface for painting due to the risk of spreading dissolved hydrocarbon contamination. Paint thinners can be used to treat small localized areas of contamination such as marks from marker pens. Use clean, white cotton cloths that are turned and replaced often. Do not bundle used solvent saturated cloths. Place used cloths into water. 1 ^(ValidationDate). The data and information provided are not definite requirements. They are guidelines to assist in smooth and safe use, and optimum service of the product. Adherence to the guidelines does not relieve the applicator of responsibility for ensuring that the work meets specification requirements. Jotuns liability is in accordance with general product liability rules. Coated surfaces Verification of existing coatings including primers Organic primers/intermediates When the surface is an existing coating, verify with technical data sheet and application guide of the involved products, both over coatability and the given maximum over coating interval. Date of issue: 16 September 2015 Page: 1/7 This Application Guide supersedes those previously issued. The Application Guide (AG) must be read in conjunction with the relevant specification, Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for all the products used as part of the coating system. For your nearest local Jotun office, please visit our website at www.jotun.com. Application Guide Hardtop AX The surface of previous coats shall be free from contamination by water, hydrocarbon based products, wax, mud, mortar droppings and loose, chalked and flaking coating. Inspect the surface for hydrocarbon and other contamination and if present, remove with an alkaline emulsifying detergent. Agitate the surface to activate the cleaner and before it dries, wash the treated area by low-pressure waterjetting method to Wa 1 (ISO 8501-4) using fresh water. Surfaces not contaminated with hydrocarbon deposits shall be washed to Wa 1 (ISO 8501-4) using fresh water to reduce surface chlorides. When applied on coatings past maximum over coating interval light abrading may be required to achieve proper intercoat adhesion. Application Acceptable environmental conditions - before and during application Air temperature Substrate temperature Relative Humidity (RH) 0 50 - °C 0 - 60 °C 10 - 85 % • Only apply the coating when the substrate temperature is at least 3 °C (5 °F) above the dew point • Do not apply the coating if the substrate is wet or likely to become wet • Do not apply the coating if the weather is clearly deteriorating or unfavourable for application or curing • Do not apply the coating in high wind conditions Before application, test the atmospheric conditions in the vicinity of the substrate for the dew formation according to ISO 8502-4. The following restrictions must be observed: Standard grade Product mixing Product mixing ratio (by volume) Hardtop AX Comp A 4 part(s) part(s) 1 Hardtop AX Comp B The coating shall be mixed with an air powered mechanical paint mixing tool that is clean and fit for purpose. Mix complete units only. The temperature of base and curing agent is recommended to be 18 °C or higher when the paint is mixed. Thinner/Cleaning solvent Thinner: Jotun Thinner No. 26 Jotun Thinner No. 10 can be used where aromatic solvents are accepted. Jotun Thinner No. 10 / Induction time and Pot life Pot life 2 h Paint temperature 23 °C 4 / 16 1 / 4 Date of issue: 16 September 2015 Page: 2/7 This Application Guide supersedes those previously issued. The Application Guide (AG) must be read in conjunction with the relevant specification, Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for all the products used as part of the coating system. For your nearest local Jotun office, please visit our website at www.jotun.com. Application Guide Hardtop AX Nozzle tip (inch/1000) : Pressure at nozzle (minimum) : Airless Spray Equipment 150 bar/2100 psi Air Spray Equipment Pump ratio (minimum) : Pump output (litres/minute) : 32:1 0.7-1.5 Filters (mesh) : Several factors influence, and need to be observed to maintain the recommended pressure at nozzle. Among factors causing pressure drop are: - long paint- and whip hoses - low inner diameter hoses - high paint viscosity - large spray nozzle size - inadequate air capacity from compressor - wrong or clogged filters Material hose length : 13-19 70-100 11-19 (HVLP) / 1.1-1.9 mm (pressure pot) Application data Nozzle tip (inch/1000) : Pressure at nozzle (minimum) : 2.1 bar/30 psi (HVLP) / 2.1 bar/30 psi (pressure pot) Film thickness per coat Dry film thickness Wet film thickness Theoretical spreading rate Typical recommended specification range 50 80 13 100 160 6,3 Bright colours may need film thickness in the high end of the recommended specification range to achieve opacity. μm μm m²/l - - - Dry film thickness (DFT) measurement Wet film thickness (WFT) measurement and calculation Ventilation Coating loss To ensure correct film thickness, it is recommended to measure the wet film thickness continuously during application using a painter's wet film comb (ISO 2808 Method 1A). Use a wet-to-dry film calculation table to calculate the required wet film thickness per coat. A wet to dry film thickness chart is available on the Jotun Web site. When the coating has cured to hard dry state the dry film thickness can be checked to SSPC PA 2 or equivalent standard using statistical sampling to verify the actual dry film thickness. Measurement and control of the WFT and DFT on welds is done by measuring adjacent to and no further than 15 cm from the weld. Sufficient ventilation is very important to ensure proper drying/curing of the film. Date of issue: 16 September 2015 Page: 3/7 This Application Guide supersedes those previously issued. The Application Guide (AG) must be read in conjunction with the relevant specification, Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for all the products used as part of the coating system. For your nearest local Jotun office, please visit our website at www.jotun.com. Application Guide Hardtop AX The consumption of paint should be controlled carefully, with thorough planning and a practical approach to reducing loss. Application of liquid coatings will result in some material loss. Understanding the ways that coating can be lost during the application process, and making appropriate changes, can help reducing material loss.Some of the factors that can influence the loss of coating material are: - type of spray gun/unit used - air pressure used for airless pump or for atomization - orifice size of the spray tip or nozzle - fan width of the spray tip or nozzle - the amount of thinner added - the distance between spray gun and substrate - the profile or surface roughness of the substrate. Higher profiles will lead to a higher "dead volume" - the shape of the substrate target - environmental conditions such as wind and air temperature Drying and Curing time Surface (touch) dry Walk-on-dry 4 h 3 h 2 h 1 h 1 h 40 h 24 h 16 h 8 h 4 h 20 d 14 d 10 d 5 d 3 d Substrate temperature 5 °C 10 °C 23 °C 40 °C Dried/cured for service 0 °C Dry to over coat, minimum 24 h 18 h 10 h 5 h 3 h Walk-on-dry: Minimum time before the coating can tolerate normal foot traffic without permanent marks, imprints or other physical damage. Drying and curing times are determined under controlled temperatures and relative humidity below 85 %, uploads/s1/ hardtop-ax-technical-data-sheet-application-guide.pdf