Antibacterial powder coating

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Introduction

Made of inorganic antibacterial agent, it has long-term antibacterial properties and is suitable for indoor and outdoor environments.

Anti-Microbial Powder：

Most moutainchem powder paint coatings can be formulated with anti-microbial capabilities. These coatings use silver ions to inhibit the growth of mildew and spoilage-causing microbes on the powder coating.

What’s more, as silver is a naturally occurring element, the silver ions used are environmentally responsible and have been shown to offer protection against microbes that cause odor, mildew, and spoilage on the product without high toxicity to humans and animals.

Lasting Performance, Keeping Your Coatings CleanThe latest coating technologies provide your products with protection that exceeds other conventional finishes — extending the longevity, integrity and aesthetic beauty of your products. Upon request, all chemicals and colours of Sherwin-Williams powder coatings can be made in antimicrobial version.

Suggested end uses for antimicrobial coatings include high touch surfaces:

Hospital furniture

Patient room and intensive care units (ICU) entrances of hospitals and medical facilities

Laboratory equipment

Classroom window frame surfaces in schools and universities

Entrances to hotels, shopping malls or other retail locations

Kiosks or vending machines

Fitness equipment

Office furniture, door handles, elevator buttons or shelf units

Interior or exterior aluminum handrails

Building materials, including interior frames of windows & doors

Home appliances

Lighting fixtures

Heating and air conditioning units

Features:

— Prevent the growth of Escherichia coli, Aspergillus flavus, Staphylococcus luteus, Penicillium citrinum, Chromobacterium citrifolium, Mucor racemosus, Mycelium dermatophyte, Rhodococcus rhodopsinus, etc.

— Long-term

— Can reach 4N-5N (99.99-99.999%)

Applications:

— Kitchenware: dishwashers, stoves, cabinets, etc.

— Household appliances: refrigerators, freezers, water dispensers, microwave ovens, etc.

— Medical equipment: medical beds, etc.

Application parameters:

Curing time: 200℃×10–15 minutes

Spraying method: High-voltage electrostatic spraying 60-80 KV

Recommended film thickness: 60-80 um

Performance Category	Performance Parameter	Specification	Test Method
Physical Properties	Pencil Hardness	≥ H	GB/T 6739
	Impact Resistance	≥ 50 kg·cm	GB/T 1732
	Flexing Endurance	≤ 2 mm	GB/T 6742
	Adhesive Force	0 grade	GB/T 9286
	Bulge Depth	≥ 6 mm	GB/T 9753
Chemical Properties	Salt Spray Resistance	≥ 500 hours, ≥ Grade 9	GB/T 1771
	Humidity Resistance	≥ 1000 hours, slight loss of gloss	GB/T 1740
	Acid Resistance (5% H₂SO₄)	1 year, no color change or foaming	–
	Alkali Resistance (5% NaOH)	30 days, slight loss of light	–
	Antibacterial Rate	4N to 5N (99.99-99.999%)	–

The above tests all use 0.8mm degreased and derusted cold-rolled steel plates, with a coating thickness of 40 to 80um. The performance indicators of the coating will vary slightly with the gloss.

Antimicrobial: How it Works：

The term antimicrobial refers to a substance that inhibits the growth of microorganisms to protect the coated surface. Antimicrobial powder coatings incorporate advanced silver ion technology which is proven to reduce the growth of harmful bacteria on the surface of the coatings. The silver ion technology in antimicrobial powder coatings reduces bacterial growth, providing permanent protection for the lifetime of the product. The coating does not replace the cleaning of the surface. The antimicrobial silver active is added into powder coatings during manufacture, making it a permanent feature. Silver ion technology is incredibly durable and long lasting, as long as the coating is there, the active silver will still be there. Persistence tests have shown that the antimicrobial activity of powder coatings does not decay with time. Sherwin-Williams can confirm with a special instrument the presence of the silver additive in the surface applied with antimicrobial powder coatings.

This product does not contain heavy metals such as arsenic, selenium, lead, hexavalent chromium, mercury, antimony, cadmium, etc., and meets RoHS requirements.

Storage conditions:Store in a dry and ventilated room at around 25°C, avoid direct sunlight. Under this condition, the powder can be stored for 6-12 months. If it exceeds the period, it can be re-inspected and can still be used if the results meet the requirements.

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