Hyper-durable powder coatings
Powder Properties
| Appearance | Smooth Matt |
| Gloss level | 20 – 30 gloss units (60°) |
| Particle size | Suitable for electrostatic spray |
| Specific gravity | 1.2-1.7 g/cm³ depending on colour |
| Storage | Dry cool conditions below 25°C |
| Shelf life | 6 months |
| Sales code | 8 series |
| Stoving Schedule | 30 – 40 minutes at 190°C
or 20 – 30 minutes at 200°C or 15 – 25 minutes at 210°C (object temperature) Do not cure above 210°C |
Mechanical Tests
| Dry Adhesion | AAMA2605 8.4 | Pass – no removal of film |
| Impact Resistance | AAMA2605 8.5 | Pass – no tape removal of film from substrate following 3mm deformation |
| Dry Film Hardness | ISO2815 (Buchholz) | Pass |
| Abrasion Resistance | AAMA2605-13 8.6 | Pass – abrasion coefficient >40 |
Pre-treatment
For maximum protection it is essential to pre-treat components prior to the application of MT- D3020 Gen II in accordance with the MT-D Approved Applicator Manual. Aluminium components must receive a full multi-stage chromate conversion coating or suitable chrome-free pre treatment to clean and condition the substrate. Detailed advice should be sought from the pre-treatment supplier.
Application – Cleanup
Below are some recommendations for minimising the risk of cross contamination of MT-D3020 Gen II with powders based on other chemistries such as polyester:
If possible, use a dedicated spray to waste booth if not reclaiming.
Ensure thorough cleaning of spray booth, duct work, cyclone (if within system) and all powder application equipment (guns, hoses, pumps, hoppers, etc) before and after applying MT-D3020 powders.
Clean wet rags should be used for a final wipe down on the inside of the booth and feed hopper.
When returning to application of polyester powders after a MT-D3020 run, shoot foam blocks through hoses and flush guns with next powder to remove any traces of fluorocarbon, and spray this powder to waste before reclaiming.
If reclaiming powder after MT-D3020 run, check reclaim powder for contamination before reuse.
Where possible isolate the application of MT-D3020 from other production eg. use at weekends or on night shift when no other production is taking place.
Operators should wear dedicated protective clothes for MT-D3020 application. At other times, these should be stored in sealed containers.
MT-D3020 can be stored along with other powder so long as it is in sealed containers.
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