pintura alimentaria

Application guides

by Fakolith Chemical Systems

pintura sanitaria

Painting concrete tanks and other mineral bases with certified foodgrade epoxy paint for direct and indirect contact with food, beverages and drinking water.

Description of the problem

Paint and /or repair concrete tanks (or other mineral bases such as bricks, etc.), with foodgrade paint certified for direct contact with food, beverages and drinking water, used in food processes, it’s a serious issue that requires products tested in accredited centers. Especially after the entry into force in September 2018 of the EU 2018/213 regulation that modifies the EU 10/2011, only may be used food grade paints that comply with this regulation and that have the mandatory food contact compliance declaration (detailed information in this link to our blog post), and of course, performance declaration and CE Marking. Only Fakolith has all the necessary documentation for contact with all food groups, and it is inspected regularly by the sanitary authority. In addition, when we talk about deposits we should not forget that we are talking about confined spaces, so the paint application company should follow the specific procedures of EPIS and mandatory security measures. Thanks to the high-performance epoxy paints FK-45 FoodGrade (BPA Compliant) and FK-45 FoodGrade Hygienic (BPA free), is available food certification guarantee for direct and indirect food contact. Both incorporate BioFilmStop antibacterial action, for greater hygiene and food safety. We recommend consulting our "Application Guide for high solids epoxies" before starting work with these paints. Without considering major repairs, painting or repainting a food tank, at least you have the following basic options. 

Summary of the most common basic solution and procedure

The ideal pre-treatment to ensure maximum adhesion to the base would be the complete elimination of old layers of existing paints by physical processes (sanding, blasting, sandblasting ...) or with chemical strippers (for example, macs Asur or macs Oxystrip). If this base preparation is not feasible, alternatively and without considering major repairs like concrete damage repairing with mortars such as Elite R3 mortar, at least we recommend sanding the existing paint and checking its good adhesion by cut cross Test Class 0. The following process will go through proper cleaning and drying of the base. Finally proceed to paint with one of the FK-45 foodgrade paints, with or without reinforcement glass fiber mesh, if it is convenient.

1. SURFACE CLEANING:

· Option A - FAKOLITH FK-12Once the concrete or solid mineral base has been reached, apply the moisture damage cleaner, such as mold, saltpeter or biofilm, and rinse with water to eliminate damages. After drying the base is ready for the next treatment.

· Option B - FAKOLITH FK-111: if repainting is required, apply the descaler and grease cleaner, pollution, industrial dirt and biofilm matrix. Then, rinse with water to remove the dirt. After drying the base is ready for the next treatment.  

 

2. SURFACE PAINTING:

Final painting, apply at least 2- 4 hands, with the most suitable FoodGrade epoxy paints which are ideal for food industry and health sectors, in direct and indirect contact with foods, waterproof, high physicochemical resistance, high cleaning and disinfection resistance, and with CE marking tests. It must have in mind that for its correct drying and curing there are need more than 10ºC. At least for the first coat and depending on application and conditions, we recommend diluting paint up to 10% with FK-45 OEM Solvent FG (food grade solvent) to ensure better wetting and leveling.    

· Option A - FAKOLITH FK-45 FOODGRADE: the use of this high solids foodgrade epoxy paint is usually the most common option. 

· Option B - FAKOLITH FK-45 FOODGRADE HYGIENICFor tanks > 10,000 l. and pipes it is recommended this version of FK-45 that has greater physicochemical resistance. 

· Option C- FAKOLITH FK-100 FOODGRADE: the use of this innovative 100% solid food epoxy paint is presented as the most avant-garde option which has a double certification EU 10/2011 and FDA 21 CFR 175.300, and organoleptic test for drinking water.

Application process

1.- Option A - FK-12

PRODUCT SUMMARY: Concentrated water-based detergent cleaner, free of chlorine and formaldehyde, biodegradable and compatible with moisture. Wide range of applications and sectors, for use both indoors and outdoors, on horizontal and vertical surfaces.

For cleaning moisture damage on surfaces of various materials; saltpetre blooms, lime blooms, surface damage caused by the action of microorganisms such as mould, moss, bacteria and biofilm matrix, as well as medium-grade pollution. Mainly used in industry in general, food industry, health sector, establishments in general, restoration of facades and heritage, civil works.

It presents a notorious descaling power of penetration, leaving the pore of the base, clean, open and receptive for later treatments; consolidators, protectors, waterproofing impregnations, primers, paints and coatings, anti-graffiti protections, etc. Its tensoactive components facilitate the neutralization of the base, after rinsing with water. With Declaration of Conformity.

MODE OF APPLICATION: Application from concentrated to dissolved 1:4 in water as a general rule. Adapt the dissolution according to the needs and conditions of each surface. The higher the concentration, the faster the action, and the higher the capacity to clean the damage. Especially to eliminate lime and microorganisms in wood will be applied without dilution.

Once the dissolution is done, apply preferably from the upper area, with brush, sponge, mop, spray, as appropriate in each case:

- Insist where the reaction is triggered and rub the affected area with brushes.
- Rinse with water before the product and the dissolved dirt dry.
- Allow to dry before proceeding with other treatments.

CONSUMPTION - PERFORMANCE: It is very variable, depending on the solution used, type and absorption of the surface, method of application, type and degree of dirt or affection, so its average performance can vary between 4 m² and 15 m² per litre of concentrate.

1.- Option B - FK-111

DESCRIPTION AND MAIN USE: FAKOLITH FK-111 is a detergent cleaner for use with grease-based dirt or grime, pollution, biofilms matrix, scorching or industrial grime in general, on surfaces resistant to alkaline solutions. Mainly for use in the food industry, industry in general, construction and civil engineering. Health Register FAKOLITH RGSEAA ES-39.005259/T y ROESP E-0043-E.

RECOMMENDED THINNER: 1 part FK-111 to 4 parts water. Can also be used undiluted if necessary, in more contaminated areas or when speed of action is required.

HOW TO APPLY: Carefully protect all surfaces that are not to be treated from splashing. Apply diluted FK-111 using spray guns, brushes or rollers and immediately activate the product by scrubbing with a brush with stiff plastic bristles, working particularly on the worst affected areas. Allow 15-20 minutes to pass, although always before it has dried, and then wash off and rinse thoroughly using water under pressure. If so required the operation can be repeated. Leave to dry before going ahead with possible additional treatments. For further details consult the specifications sheet and/or application guidelines, along with the safety sheet.

AVERAGE YIELD: Undiluted FK-111 provides a yield of approx. 8-12 litres/m², although depending on the extent of the contamination this may vary considerably.

2.- Option A - FK-45 FoodGrade

PRODUCT SUMMARY: FK-45 FoodGrade is a 2-component epoxy food contact paint or varnish, with very high solids content, certified for direct and indirect contact with food, according to the European regulation EU 10/2011. High performance paint, low Voc, low odor, gloss finish, with CE marking tests and excellent physicochemical resistance in its category. Especially indicated for the protection and painting of surfaces in direct and indirect contact with food, beverages, water for food processing and drinking water.

Product treated (BPR Art 3 and 58) with BioFilmStop FG antimicrobial technology, specific FoodGrade version, highly effectiveness tested against bacteria and other pathogenic microorganisms such as coronavirus, and always according to EU 10/2011 and FDA 21 CFR 175.300 regulations. ISO 22196 and ISO 21702 effectiveness test (Escherichia coli, Listeria monocytogenes, Bacillus subtillis, Pseudomonas aureginosa, Staphylococcus aureus, Salmonella enteritidis, Legionella pnemophila, Coronavirus Feline). The paints and coatings of the Fakolith FoodGrade range contribute to the positive compliance with CE 852/2004, are manufactured under HACCP and Good Manufacturing Practices (GMP) according to CE 2023/2006 and/or FDA 21 CFR 174.5, improving the hygiene, food and health safety of surfaces and environments.

FIELDS OF USE: Following the technical instructions for each system, FK-45 FoodGrade can be applied inside silos and tanks and pipes, and given its high physical-chemical resistance, it is also highly recommended for direct indirect and occasional contact on walls, ceilings, skirting boards, floors, metal structures, machinery and equipment, cold and freezing rooms, food warehouses, panels, food transport, objects, etc., always indoors.Especially in the food industry and healthcare sectors, hospitals and clinics, and also in industry, civil works and public and private buildings in general. Compatible with most mineral surfaces, concrete, sandblasted metals SA 2,5 Rz>50, metals properly primed, lacquered panels and on other paints and / or compatible primers well bonded and other surfaces resistant to cut-cross test Class 0-1 UNE-DIN EN ISO 2409:2007 and traction EN ISO 4624:2016 Rigid Systems: ≥1,0 (0,7) b N/mm2. (Without traffic loads) and: ≥2,0 (1,5) b N/mm2 (With traffic loads).

STANDARD COLORS: Transparent varnish, White RAL 9003, Light Ivory RAL 1015, Oxide Red RAL 3009 and Grey RAL 7004, Green RAL 6002, Blue RAL 5012, Yellow RAL 1003 and Black RAL 9017 (Please check availability, price and minimum required quantity for other colors from our FoodGrade chart or other RAL colors).

APPLICABLE: with brush, roller, Airless or AirMix preferably heated.

With Declaration of Compliance, Performance and CE marking.

AVERAGE YIELD PAINT: according to recommended coat thickness, depending on use of FK-45 FoodGrade

- Dry thickness 200 µm = wet 302 gr/m² (222 ml/m²) - yield 3,31 m²/kg (4,5 m²/L).
- Dry thickness 300 µm = wet 453 gr/m² (333 ml/m²)- yield of 2,21 m²/kg (3,00 m²/L).
- Dry thickness 350µm = wet 528 gr/m² (389 ml/m²)- yield of 1,90 m²/kg (2,57 m²/L).
- Dry thickness 400 µm = wet 604 gr/m² (444 ml/m²)- yield of 1,66 m²/kg (2,25 m²/L).
- Dry thickness 500 µm = wet 755 gr/m² (555 ml/m²)- yield of 1,32 m²/kg (1,80 m²/L).
- Dry thickness 700µm = wet 1058 gr/m² (778 ml/m²)- yield of 0,95 m²/kg (1,28 m²/L).

AVERAGE YIELD TRANSPARENT VARNISH:

- Dry thickness 50 µm = wet 58 gr/m² (53 ml/m²)- yield of 17,27 m²/kg (18,87 m²/L).
- Dry thickness 75 µm = wet 87 gr/m² (79 ml/m²)- yield of 11,49 m²/kg (12,66 m²/L).
- Dry thickness 100 µm = wet 116 gr/m² (105 ml/m²)- yield of 8,63 m²/kg (9,52 m²/L).

For a correct application follow the indications in the technical sheets, application guides and safety data sheets. In case of doubt consult our technical service.

2.- Option B - FK-45 FoodGrade Hygienic

PRODUCT SUMMARY: FK-45 FoodGrade Hygienic is an Ultra-high solid food contact paint, mainly based on 2-component epoxy-novolac resin (alternative to epoxy-BPA), with certification for direct and indirect contact with food, according to the European Regulation EU 10/2011. High performance paint, low Voc, low odor, gloss finish, with CE marking tests and excellent physicochemical resistance in its category. Especially indicated for the protection and painting of surfaces in direct and indirect contact with food, beverages, water for food processing and drinking water.

Product treated (BPR Art 3 and 58) with BioFilmStop FG antimicrobial technology, specific FoodGrade version, highly effectiveness tested against bacteria and other pathogenic microorganisms such as coronavirus, and always according to EU 10/2011 and FDA 21 CFR 175.300 regulations. ISO 22196 and ISO 21702 effectiveness test (Escherichia coli, Listeria monocytogenes, Bacillus subtillis, Pseudomonas aureginosa, Staphylococcus aureus, Salmonella enteritidis, Legionella pnemophila, Coronavirus Feline). The paints and coatings of the Fakolith FoodGrade range contribute to the positive compliance with CE 852/2004, are manufactured under HACCP and Good Manufacturing Practices (GMP) according to CE 2023/2006 and/or FDA 21 CFR 174.5, improving the hygiene, food and health safety of surfaces and environments.

FIELDS OF USE: Following the technical instructions for each system, FK-45 FoodGrade Hygienic can be applied inside silos and tanks (>10,000 l.) and pipes, and given its high physical-chemical resistance, it is also highly recommended for indirect contact on walls, ceilings, skirting boards, floors, metal structures, machinery and equipment, cold and freezing rooms, food warehouses, panels, food transport, etc., always indoors. Especially in the food industry and healthcare sectors, hospitals and clinics, and also in industry, civil works and public and private buildings in general. Compatible with most mineral surfaces, concrete, sandblasted metals SA 2,5 Rz>50, metals properly primed, lacquered panels and on other paints and / or compatible primers well bonded and other surfaces resistant to cut-cross test Class 0-1 UNE-DIN EN ISO 2409:2007 and traction EN ISO 4624:2016 Rigid Systems: ≥1,0 (0,7) b N/mm2. (Without traffic loads) and: ≥2,0 (1,5) b N/mm2 (With traffic loads).

STANDARD COLORS: White RAL 9003, Light Ivory RAL 1015, Oxide Red RAL 3009 and Grey RAL 7004 (Please check availability, price and minimum required quantity for other colors from our FoodGrade chart or other RAL colors).

APPLICABLE with brush, roller, Airless or AirMix preferably heated.

With Declaration of Compliance, Performance and CE marking.

AVERAGE YIELD: according to recommended coat thickness, depending on use of FK-45 FoodGrade Hygienic

- Dry thickness 200 µm = wet 285 gr/m² (211 ml/m²) - yield 3,51 m²/kg (4,74 m²/L).
- Dry thickness 300 µm = wet 427 gr/m² (316 ml/m²)- yield of 2,34 m²/kg (3,16 m²/L).
- Dry thickness 350 µm = wet 497 gr/m² (368 ml/m²)- yield of 2,01 m²/kg (2,70 m²/L).
- Dry thickness 400 µm = wet 568 gr/m² (421ml/m²)- yield of 1,76 m²/kg (2,38 m²/L).
- Dry thickness 500 µm = wet 710 gr/m² (526 ml/m²)- yield of 1,41 m²/kg (1,90 m²/L).
- Dry thickness 700 µm = wet 995 gr/m² (737 ml/m²)- yield of 1,00 m²/kg (1,36 m²/L).

2.- Option C - FK-100 FoodGrade

PRODUCT SUMMARY: FK-100 FoodGrade is a 100% solid, 2-component epoxy food contact bio-hybrid paint, with double certification for direct and indirect contact with food, the European EU 10/2011, and the American FDA 21 CFR 175.300. High performance paint, low Voc, initial low odor characteristic of bio-based food contact resin, gloss finish, with CE marking tests and excellent physicochemical resistance in its category. Especially indicated for the protection and painting of surfaces in direct and indirect contact with food, beverages, water for food processing and drinking water.

Product treated (BPR Art 3 and 58) with BioFilmStop FG antimicrobial technology, specific FoodGrade version, highly effectiveness tested against bacteria and other pathogenic microorganisms such as coronavirus, and always according to EU 10/2011 and FDA 21 CFR 175.300 regulations. ISO 22196 and ISO 21702 effectiveness test (Escherichia coli, Listeria monocytogenes, Bacillus subtillis, Pseudomonas aureginosa, Staphylococcus aureus, Salmonella enteritidis, Legionella pnemophila, Coronavirus Feline). The paints and coatings of the Fakolith FoodGrade range contribute to the positive compliance with CE 852/2004, are manufactured under HACCP and Good Manufacturing Practices (GMP) according to CE 2023/2006 and/or FDA 21 CFR 174.5, improving the hygiene, food and health safety of surfaces and environments.

FIELDS OF USE: Following the technical indications for each system, FK-100 FoodGrade can be applied inside silos, tanks and pipes, walls, ceilings, skirting boards, floors, metal structures, machinery and equipment, large aquariums and fish farms, cold and freezing rooms, food warehouses, panels, food transport, etc., always indoors. Especially in the food industry and healthcare sectors, hospitals and clinics, and also in industry, civil works and public and private buildings in general. Compatible with most mineral surfaces, concrete, sandblasted metals SA 2,5 Rz>50, metals properly primed, lacquered panels and on other paints and / or compatible primers well bonded and other surfaces resistant to cut-cross test Class 0-1 UNE-DIN EN ISO 2409:2007 and traction EN ISO 4624:2016 Rigid Systems: ≥1,0 (0,7) b N/mm2. (Without traffic loads) and: ≥2,0 (1,5) b N/mm2 (With traffic loads).

STANDARD COLORS: Light Ivory RAL 1015, Oxide Red RAL 3009 and Grey RAL 7004 (Please check availability, price and minimum required quantity for other colors from our FoodGrade chart or other RAL colors, except white which is not available in this product).

APPLICABLE with brush, roller, Airless or AirMix preferably heated.

With Declaration of Compliance, Performance and CE marking.

AVERAGE YIELD: according to recommended coat thickness, depending on use of FK-100 FoodGrade

- Dry thickness = Wet thickness: 200 µm - consumption is 260 gr/m² - a yield of 3,85 m²/kg.
- Dry thickness = Wet thickness: 300 µm - consumption is 390 gr/m² - a yield of 2,56 m²/kg.
- Dry thickness = Wet thickness: 350 µm - consumption is 455 gr/m² - a yield of 2,2 m²/kg.
- Dry thickness = Wet thickness: 400 µm - consumption is 520 gr/m² - a yield of 1,92 m²/kg.
- Dry thickness = Wet thickness: 500 µm - consumption is 650 gr/m² - a yield of 1,54 m²/kg.
- Dry thickness = Wet thickness: 795 µm - consumption is 910 gr/m² - a yield of 1,10 m²/kg.

For a correct application follow the indications in the technical sheets, application guides and safety data sheets. In case of doubt consult our technical service.

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Images

FoodGrade tanks



With fiberglass mesh



Stuff mesh with special roller



Overpainting mesh



Finish with or without mesh



In several foodgrade colors



Food raw material stores



Grain silos



Aquiculture



Waist water plants