Standard durable polyester powder coatings
Product description
MT-D1036 Gloss is a range of powder coatings intended for use on architectural aluminium and galvanized steel. MT-D1036 Gloss has been specifically formulated without the use of TGIC. As part of the MT-D1036 series of architectural powders, MT-D1036 Gloss gives excellent exterior durability and colour retention and conforms to the requirements of all the major European architectural finishing standards. All MT-D1036 Gloss powders are lead-free and meet the requirements of GSB Florida 1. Qualicoat Class 1. EN12206. and EN13438 (formerly BS6496 &BS6497), and AAMA 2603.
| Qualicoat Approval | P-0773 (IT)
P-0991 (TR) P-0495 (ES) P-0352 (UK) P-0647 (CZ) P-0363 (DE) P-0747 (EG) P-0934 (RU) P-0143 (FR) |
| GSB Approval | 101k (gloss 85) |
| Resistance to Fire Approval | Classification: A2.s1.d0 with film thickness up to 120 µm (generic polyester D1036. D2525) according to EN13501-1 |
Powder properties
| Typical value | |
| Chemical Type | Polyester |
| Appearance | Smooth Gloss |
| Density | 1.2 – 1.9 g/cm³, depending on colour |
| Gloss (60°) | 80 – 90 GU |
| Shelf life | 24 months below 30 °C 12 months below 35 °C |
| Storage Conditions | Under dry, cool (≤ 30°C) conditions (open boxes must be resealed) |
| Curing schedule | 20 – 40 min at 170°C
10 – 20 min at 180°C 8 – 16 min at 200°C (object temperature) |
Pre-treatment
For maximum protection it is essential to pretreat components prior to the application of the powdercoating. Aluminium components should receive a full multi-stage chromate conversion coating or suitable chrome-free pre-treatment or suitable pre-anodising to clean and condition the substrate. Detailed advice should be sought from the pre-treatment supplier. Galvanised steel requires surface preparation by either multi-stage pretreatment using either zinc phosphate or chromate conversion or controlled sweep blasting. Depending on the type of galvanizing, degassing or use of anti-bubbling additives may be required – follow the procedural advice of the pretreatment supplier. The products may also be used on cast or mild steel. For outdoor useMT-PZ anti-corrosive primer over a correctly prepared substrate is recommended.
Application
Powders can be applied by manual or automatic electrostatic spray equipment. This product should be applied at minimum 60μm. All powders can show small color differences from batch to batch, this is normal and unavoidable. Bonded products have better application properties than blended products (more stable) but attention should still be paid to line settings in order to avoid “marble effect” and changes in aspect after recycling.
Products with different codes should not be mixed even if same colour and gloss. Different substrates (aluminium, steel, galvanized steel…), use of primer, and big changes in film thickness may give a different aspect.Applicators and fabricators are advised to use a single batch for parts that will be assembled together. Differences are more likely with special effect powders. For more information, it is suggested to read the Metallic Applications Guidelines. Clearcoats including tinted clearcoats cannot be applied directly on primers. Only fully opaque shades are suitable for application over primer.
| Application Method | Electrostatic |
| Recycling | For solid shades, unused powder can be reclaimed Unused powder can be reclaimed using suitable equipment and recycled through the coating system, but a minimum of 70% virgin powder should be used. |
Post application
For specific advice on the suitability of post coating processes such as bending or the use of sealants, adhesives, thermal break, cleaning etc. Please consult us.
Test conditions
The results are based on mechanical and chemical tests which (unless otherwise indicated) have been carried out under laboratory conditions and are given for guidance only Testing has been determined under laboratory conditions using the following application properties and is for guidance only.
| Pre-treatment | Chrome free Qualicoat/GSB approved pretreatment |
| Substrate | Aluminum (0.5-0.8 mm Al Mg1) |
| Curing schedule | 15 min at 180°C (object temperature) |
| Film Thickness | 60 – 80µm, ISO 2360 |
Mechanical tests
| Typical value | Method/standard | |
| Adhesion | Class 0 | ISO 2409 (2 mm Crosshatch) |
| Erichsen cupping | Pass 5 mm | ISO 1520 |
| Flexibility | Pass 5 mm | ISO 1519 |
| Hardness | >80 | ISO 2815 (Buchholz hardness) |
| Impact resistance | Pass 2.5 Joules reverse & direct (20 in lb) | ISO 6272-2 (d/r) |
Chemical and durability tests
| Typical value | Method/standard | |
| Chemical Resistance | Generally good resistance to acid, alkalis and oil at room temperatures. | |
| Sulphur Dioxide Resistance | Pass 24 cycles– no blistering, loss of gloss or discoloration | ISO 22479 |
Environmental and durability tests
| Typical value | Method/standard | |
| Accelerated weathering | ≥50% Gloss retention, 1000 h | ISO16474-2 |
| ≥50% Gloss retention, 300 h | ISO 16474-3 QUV B 313 (GSB) | |
| Acetic acid salt spray | No blistering in excess of 2 (S2) according to ISO 4628-2. Infiltration <16 mm2 /10 cm, length of any single infiltration shall not exceed 3 mm., 1000 h | ISO 9227 |
| Humidity | No blistering in excess of 2 (S2) according to ISO 4628-2; the maximum infiltration at the cross is 1 mm, 1000 h | ISO 6270-2 CH (Constant humidity) |
| Exterior durability | Chalking – none in excess of minimum in ASTM D4214 ≥50% gloss retention, Colour retention accords with GSB/Qualicoat 1 year(s) | ISO 2810 |
| No checking, cracking or loss of adhesion after tape pull and only slight chalking and fading after 1 year of Florida exposure | ||
| Mortar resistance | No effect after 24 hours | EN 12206-1 |
| Wet adhesion | No sign of detachment or blistering. Cross-cut value 0. Colour change is acceptable. | Qualicoat/GSB |
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