Hyper-durable powder coatings

Surface Finish Options Overview

Product Description

MT- D3020 Gen II is a series of hyper-durable powder coatings designed to meet the requirements of AAMA2605. the most demanding architectural specification in the world. MT- D3020 Gen II technology uses innovative fluorocarbon polymer chemistry that is designed to provide maximum gloss and colour retention in service. MT- D3020 Gen II is also designed to provide excellent cosmetic and functional protection whilst exploiting the recognised benefits of powder coatings. MT- D3020 Gen II is a technically and environmentally benign alternative to liquid PVF2 systems. MT- D3020 Gen II is available in a selected range of colours and pearlescent effects and in a subtle low sheen finish.

Powder Properties

Mechanical Tests

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.

FAQ

1. What is Powder Coating?

Powder coating is a dry finishing process used to apply a protective and decorative coating on metal or other surfaces. Instead of using liquid paint, fine powder particles (usually made of polyester, epoxy, or hybrid resins) are electrostatically charged and sprayed onto a conductive surface. The coated object is then baked in an oven, where the powder melts, flows, and cures into a smooth, durable finish.

Key features:

Durable, hard finish

Resistant to scratches, corrosion, and UV

Environmentally friendly (no VOCs)

2. Benefits of Powder Coating

Powder coating offers several advantages over traditional liquid painting:

Durability: Resistant to chipping, scratching, fading, and wear.

Corrosion Protection: Provides excellent protection against rust and chemicals.

Environmentally Friendly: No volatile organic compounds (VOCs) and minimal waste.

Efficiency: Overspray can be collected and reused, up to 99% material utilization.

Uniform Finish: Smooth, even coating without runs or drips.

Cost-Effective: Single-coat systems can achieve high film thickness, reducing labor and energy.

Aesthetic Variety: Wide range of colors, textures, and effects.

3. What Temperature to Cure Powder Coating

The curing temperature depends on the type of powder used:

Epoxy powder: ~160–200°C (320–392°F)

Polyester powder: ~180–210°C (356–410°F)

Hybrid (Epoxy-Polyester) powder: ~180–200°C (356–392°F)

Typical curing time: 10–20 minutes depending on thickness and oven type.

Always follow the powder manufacturer’s specifications for best results.

4. Process for Powder Coating

The powder coating process usually follows these steps:

Surface Preparation:

Clean the surface thoroughly (remove oil, grease, rust, or dirt)

Methods: chemical cleaning, sandblasting, or phosphating

Pre-Treatment:

Apply a conversion coating or primer if needed to improve adhesion

Powder Application:

Spray the powder using an electrostatic spray gun or fluidized bed

Curing:

Bake the coated object in an oven at the recommended temperature for the powder type

The powder melts and forms a continuous, smooth film

Cooling & Inspection:

Let the coated item cool

Inspect for defects, uniform coverage, and desired thickness

5. How to Spray Powder Coat

Equipment Needed:

Electrostatic spray gun

Compressed air supply

Powder feed hopper or container

Grounding of the object

Steps:

Ground the object: Ensures the charged powder is attracted to the surface.

Spray evenly: Hold the gun 6–12 inches from the surface, moving in smooth, overlapping strokes.

Apply sufficient powder: Ensure full coverage without excessive buildup.

Cure immediately: Transfer the sprayed item to the curing oven to fuse the powder into a solid coating.

Tips:

Maintain consistent speed and distance while spraying.

Use proper ventilation to reduce airborne powder accumulation.

Test a small area to check film thickness and color before full application.