¶ HeyGears UltraGlaze ClearG115 Introductions
HeyGears UltraGlaze ClearG115 is a UV LED curable varnish that requires a light source of 405nm, 395nm, or 365nm. It’s advised to use the UltraCraft Cure by HeyGears to cure the varnish, and curing time may differ dependign on the bands.
Operations requirements: This product has a high content of active ingredients, and, in spray-painting, it should be together with an EAC thinner while it can be used directly in brush-painting. (In both ways, a curing agent can be additionally used together to enhance the varnish's adhesion). The process should be conducted in a dust-free, light-protected environment, preferably indoors and in a well-ventilated area.
¶ Tool list
Polish
| Categories | Items |
| Solvent | Water |
| Devices | Ultrasonic Cleaner |
| Tools | Sponge sandpaper (320, 400, 600 grit), cleaning brush, washing box, lint-free cloth, air blow gun. |
Spray-painting
| Categories | Items |
| Solvent | UltraGlaze ClearG115, EAC thinner (concentration ≥ 99.5%, water content ≤0.10%), curing agent (optional aliphatic polyisocyanate resin such as Covestro/Bayer N75, etc.). |
| Devices | HeyGears UltraCraft Cure, water curtain paint spray booth, air compressor, airbrush (0.3/0.5mm-diameter nozzle). |
| Tools | Protective goggles, 3M respirator, nitrile gloves, disposable plastic cup, disposable dropper, glass stir stick, 400-600 grit filter paper, lint-free cloth, alligator clip bamboo sticks, electronic scale (accuracy 0.1g or above). |
Brush-painting
| Categories | Items |
| Solvent | UltraGlaze ClearG115, curing agent (optional aliphatic polyisocyanate resin such as Covestro/Bayer N75, etc.). |
| Devices | HeyGears UltraCraft Cure, rotating unit with a hole that fits an alligator clip stick |
| Tools | Protective goggles, 3M respirator, nitrile gloves, paint brush, disposable plastic cup, glass stir stick, alligator clip bamboo sticks, painting stand base. |
¶ 1. Preparation
Reminder: Before performing product spraying operations, it is recommended to take appropriate protective measures. Wear a 3M respirator, protective goggles, and nitrile gloves to prevent inhalation of dust, volatile gases, or splashes of varnish onto the skin or eyes. If varnish splashes into the eyes, immediately rinse your eyes with clean water for over half an hour.
¶ 1.1 Process Print Part
Before spraying the print part, essential sanding and washing is essential in order to eliminate the support remains and layer lines, and to enhance the varnish's adhesion, ensuring a smooth and glossy finish. This is a key step for achieving the desired effect.
Polish
| Solvent | Water |
| Devices | Ultrasonic Cleaner |
| Tools | Sponge sandpaper (320, 400, 600 grit), cleaning brush, washing box, lint-free cloth, air blow gun. |
¶ (1) Sand
- Use sand paper with lower grit (320/400) to sand the support breaks to even. Then use 600-grit paper to sand again. Marks by the sand paper will be covered by the varnish.
¶ (2) Wash
- Use a cleaning brush to swipe the dusts off the print's surface and especially between gaps.
- Put the print into a washing box with clean water, and then put the box into an ultrasonic cleaner to thoroughly wash it for 3 min.
- Take out the washed print, blow it dry with an air blow gun, and bake it with a baker for 30 min to dry the water in the gaps. Baking temperature depends on the heat resistance of the printing material. Lower the temperature if there are samples deforms after baking.
¶ 2. Spray-painting
¶ 2.1 Preparation
Please take protective measures and be prepared with the tools below.
Spray Painting
| Solvent | UltraGlaze ClearG115, EAC thinner (concentration ≥ 99.5%, water content ≤0.10%), curing agent (optional aliphatic polyisocyanate resin such as Covestro/Bayer N75, etc.). |
| Devices | HeyGears UltraCraft Cure, water wash, spray machine, airbrush (0.3/0.5mm-diameter nozzle). |
| Tools | Protective goggles, 3M respirator, nitrile gloves, disposable plastic cup, disposable dropper, glass stir stick, 400-600 grit filter paper, lint-free cloth, alligator clip bamboo sticks, electronic scale (accuracy 0.1g or above). |
¶ 2.2 Prepare Varnish
¶ (1) Dilution ratio of varnish
As follows are the dilution ratio for different coat thickness (15 to 35 μm).
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Moderate thickness: 20 to 30 μm — Varnish/EAC thinner = 100g/170g
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Thicker thickness: above 35 μm — Varnish/EAC thinner = 100g/150g
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Thinner thickness: below 15 μm — Varnish/EAC thinner = 100g/200g
Choose the procedure according to your needs:
Direct spraying on the prints: Varnish/EAC thinner = 100g/150g~200g
Spraying on prints after special treatments such as dyeing or priming: The varnish may result in poor adhesion in this case. A recommendation is diluting the varnish — varnish/EAC thinner = 100g/150~200g — and then add some curing agent — diluted varnish/curing agent = 100g/5g.
Notices:
Diluted varnish, if is not used up, should be stored in a black container, sealed, and kept away from light, as the EAC thinner is a volatile solvent.
Varnish that has been added with curing agent is not recommended is not recommended to be stored, as prolonged storage may lead to difficulties in spraying and poor adhesion.
¶ (2) Presentation
Ex) Adopting the ratio of 100g varnish/170g EAC thinner, prepare 135g of diluted varnish, and then add 6.75g of curing agent to it (diluted varnish/curing agent = 100g/5g).
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- When preparing the varnish, use a clean sir stick to fully mix the solvent.
- Filter the final prepared varnish with 400-600 grit filter paper. The varnish after filtering is ready for coating.
¶ 2.3 Spray-painting
- Test and adjust the pressures of the airbrush (empty) .
0.3 mm nozzle - Use the pressure at 20 psi, which is generally suitable for models with a volume smaller than 50 mm x 50 mm x 50 mm.
0.5 mm nozzle - Use the pressure at 25-30 psi, which is generally suitable for models with a volume larger than 50 mm x 50 mm x 50 mm.
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- Pour the prepared varnish into the airbrush.
- Spray the model at a suitable distance of about 12-15 cm away.
- Check the model for any areas that have not been properly sprayed, and touch up as needed.
¶ 2.4 Curing
HeyGears UltraCraft Cure is used here, which features both baking and curing UV.
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Ensure that the curing device is clean and dust-free, and preheat it to 60°C in baking mode (Temperature depends on the heat resistance performance of the printing material).
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Carefully place the model into the curing device. Use the baking mode to bake it first, at 60°C for 2.5 mins to allow the varnish coat to level naturally.
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If you find the model is poor coating BEFORE curing, you can wash it off and paint it again; if you find this situation (locally) AFTER curing, you can sand the area and paint some varnish on it again.
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Check the condition of the coat to ensure it is uniform and intact. Use the curing mode of the curing device to cure the model at 60°C 5 mins.
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¶ 3.Brush-painting
¶ 3.1Preparation
Brush-painting
| Solvent | UltraGlaze ClearG115, curing agent (optional aliphatic polyisocyanate resin such as Covestro/Bayer N75, etc.). |
| Devices | HeyGears UltraCraft Cure, rotating unit with a hole that fits an alligator clip stick |
| Tools | Protective goggles, 3M respirator, nitrile gloves, paint brush, disposable plastic cup, glass stir stick, alligator clip bamboo sticks, painting stand base. |
¶ 3.2Prepare Varnish
Choose the procedure according to your needs.
Direct brushing on the prints: Apply the varnish directly. No need for dilution.
Brushing on prints after special treatments such as dyeing or priming: The varnish may result in poor adhesion in this case. A recommendation is adding some curing agent — varnish/curing agent = 100g/5g.
If a curing agent is added, please stir slowly while mixing the solvent, to avoid excessive bubbles which could affect the brushing effect.
Notice： Varnish that has been added with curing agent is not recommended is not recommended to be stored, as prolonged storage may lead to difficulties in spraying and poor adhesion.
¶ 3.3 Preparation
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Mount an alligator clip stick to the model, so to avoid touching the model surface with hands (or gloves) during painting.
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Pour the required amount of varnish into a container.
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Ensure that the fine paint brush is clean and free of debris, then use it to brush the model evenly, keeping in one direction.
| Mount the alligator clip stick | Paint evenly |
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Notice:
After painting, please place the model into the curing device as soon as possible, to prevent the varnish coat from running, or oil and dust particles settling on the surface.
Unused varnish can be filtered and returned to its bottle, well stored in it away from light.
¶ 3.4 Curing
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Ensure that the curing device is clean and dust-free, and preheat it to 60°C in baking mode.
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Mount the stick with the coated model onto the rotating unit, and put them into the curing device to bake it in the baking mode at 50-60℃ for 1min (Temperature depends on the heat resistance performance of the printing material) to allow the varnish coat to level naturally.
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If you find the model is poor coating BEFORE curing, you can wash it off and paint it again; if you find this situation (locally) AFTER curing, you can sand the area and paint some varnish on it again.
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Check the condition of the coat to ensure it is uniform and intact. Use the curing mode of the curing device to cure the model at 60°C 5 mins.
| Rotating unit | Curing device - Baking | Curing device - Curing |
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¶ 4. Finished Model
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