Polyester and acrylic based powder coating MT-CA220G White

Product Description

MT-CA220G is a polyester and acrylic based powder coating designed for exterior exposure offering low gloss and weather resistance from a single coat finish. MT-CA220G is part of the MT range of powder coatings with high total reflectance, designed specifically for the lighting market.

Powder Properties

Chemical type	Polyester Acrylic
Appearance	Smooth Matt
Particle Size	Suitable for electrostatic spray
Specific gravity	1.60 ± 0.05 g/cm³
Film Thickness	75 – 100 microns
Storage	Dry cool conditions below 25oC (open boxes must be resealed)
Shelf life	12 months
Stoving schedule (object temperature)	15 minutes at 200°C

Test Conditions

The results shown below are based on mechanical and chemical tests which (unless otherwise indicated) have been carried out under laboratory conditions and are given for guidance only. Actual product performance will depend upon the circumstances under which the product is used.

Substrate	Cold Rolled Steel
Pretreatment	Gold Seal polished steel (mechanicals) Gold Seal lightweight zinc phosphate (chemical tests)
Film Thickness	60-80 microns
Stoving Schedule	15 minutes at 200°C

Mechanical Tests

	test	results
Flexibility	ASTM D522	6mm
Adhesion	ASTM D3359	5B
Impact (direct)	ASTM D2794	30kgcm
Gloss(@60°）	ISO 2813	10±2
Reflectance Class	DIN EN 16268	B

Pre-treatment

Steel surfaces to be coated must be clean and free from grease, mill scale and rust. For maximum protection, it is essential to pre-treat components prior to the application of MT-CA220G. Iron phosphate and zinc phosphate pre-treatment of ferrous substrates improve corrosion resistance. Aluminium substrates may require a chromate conversion coating.

Application

MT-CA220G can be applied using manual or automatic electrostatic spray equipment. It is recommended, that for consistent application and appearance, the product be fluidized during application. Unused powder can be reclaimed using suitable equipment and recycled through the coating system.

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