High durability powder coatings MT-800 AM

Product details

Product Description

MT-800 AM is a series of high durability powder coatings designed for exterior exposure. Tested against the most severe specifications MT-800 gives significantly improved gloss retention and resistance to colour change. MT-800 AM powders are available in a wide range of colours and gloss levels and can be custom matched to the user’s requirements.MT-800 AM is a high-quality powder coating designed to meet decorative and functional demands of your specifications. Test results have proven reduction of bacteria and mold up to 99.9%.

Powder Properties

Chemical Type	Polyester TGIC
Particle Size	Suitable for electrostatic spray
Specific Gravity	1.2-1.7 g/cm³ depending on colour and effect
Storage	Dry cool conditions below 25°C
Shelf Life	12 months
Stoving Conditions (at object temperature)	15 minutes at 190°C 10 minutes at 200°C 8 minutes at 210°C

Mechanical Tests

Adhesion (2mm Crosshatch)	ISO2409	Gt 0
Erichsen Cupping	ISO1520	Depends on shade
Hardness (4000gms)	ISO 1518	Pass – no penetration to substrate
Impact	BS6496	Depends on shade
Flexibility (Conical Mandrel)	ISO6860	Depends on shade

Pre-treatment

For maximum protection it is essential to pretreat components for exterior use prior to the application of MT-800. Aluminium components should receive a full multi-stage chromate conversion coating to clean and condition the substrate. Detailed advice should be sought from the pretreatment supplier. Galvanised steel also requires multi-stage pretreatment using either zinc phosphate or chromate conversion. Degassing of galvanised steel prior to powder application is considered mandatory – follow the procedural advice of the pretreatment supplier. MT-800 products may also be used on other substrates (eg. mild steel fabrications) for internal applications; nevertheless zinc phosphate pretreatment is regarded as essential.

Application

MT-800 AM powders can be applied by manual or automatic electrostatic spray equipment. Unused powder can be reclaimed using suitable equipment and recycled through the coating system.