Siraya Tech Aegis Finishing Coating System: User Guide

For Aegis Clear & Aegis Matte

Thank you for choosing the Aegis Finishing System. This guide will help you use Aegis Clear and Aegis Matte to protect, strengthen, and beautify your 3D prints, transforming them from raw parts into professional-grade products.

1. Introduction: The Aegis Finishing System

The Aegis system is a line of advanced, water-based polyurethane coatings designed to solve the most common challenges in 3D print post-processing. Our core idea is to provide a solution that is powerful, easy to use, and safe.

Aegis Clear is your Functional Foundation. It’s a leveling base coat and protective sealer engineered to add strength, seal porous surfaces, and create a smooth, high-adhesion base.
Aegis Matte is your Aesthetic Finish. It’s a non-glare topcoat designed to hide layer lines and provide a premium "velvet" touch, making your parts look and feel like finished products.

2. Product Features

Aegis Clear (Gloss Sealer & Leveling Base)

Seals Fibers: Encapsulates sharp, irritating fibers on composite prints (PA-CF, PETG-CF) to make them smooth and skin-safe.
Blocks Moisture: Seals hygroscopic (water-absorbing) filaments like Nylon (PA) and PPA, preserving their stiffness and strength.
Durable Protection: Cures to a tough gloss finish that resists scuffs, moisture, and incidental isopropyl alcohol contact.
Self-Leveling: Acts as a primer, smoothing micro layer lines and creating a high-adhesion foundation for paint.

Aegis Matte (Layer-Line Hiding Topcoat)

Hides Layer Lines: The ultra-matte finish diffuses light, visually minimizing FDM layer lines for a clean, injection-mold-like appearance.
Premium "Velvet" Touch: Cures to a dry, non-sticky, and non-glare surface that resists fingerprints and feels premium to the touch.
Photo-Ready Finish: The uniform, non-reflective surface is ideal for product photography, enclosures, and models where glare is undesirable.
Topcoat Only: Designed as a final finishing layer.

3. How to Apply

Preparation:

Ensure your 3D print is clean, dry, and free of dust, oils, and uncured resin.
Stir the product gently but thoroughly. Do not shake, as this can introduce air bubbles.
Aegis coatings are low-viscosity polyurethanes. For best results, apply multiple thin, even coats rather than one thick coat.

Usage 1. Manual (Brush) Application

This is the simplest method, requiring no special tools.

Use a high-quality, soft-bristle brush to avoid brush strokes.
Apply a thin, even coat directly from the bottle. Work quickly to maintain a wet edge and avoid over-brushing an area that is already beginning to dry.
Allow the coat to become touch-dry, typically ~20–30 minutes in a well-ventilated area at room temperature. You can also speed up the process by baking it at 50C for 10 minutes.
Apply a second or third coat as needed. Allow the part to cure for 24+ hours before heavy handling.

Usage 2. Spray Application (Airbrush or HVLP)

This method provides the most uniform, professional finish, especially on large or complex parts.

Dilute the product 10–20% with clean water. (Using distilled water is recommended to prevent mineral spotting). The exact ratio will depend on your equipment and air pressure.
Apply a light, misting "tack coat" first. Let it flash off for 5–10 minutes.
Apply subsequent light, wet coats, allowing ~20–30 minutes of drying time between each. You can also speed up the process by baking it at 50 °C for 10 minutes.
Build up coats until your desired finish is achieved.

4. Using Aegis Clear & Aegis Matte Together

For the ultimate finish, use the products as a 2-step system.

Step 1: The Base (Aegis Clear) Apply 1–3 coats of Aegis Clear first. This will act as your primer, filling in micro-layer lines, sealing the part, and providing a durable, level foundation. Let this layer dry completely.
Step 2: The Topcoat (Aegis Matte) Once the Aegis Clear is dry, apply 1–2 coats of Aegis Matte as your final topcoat. This will kill the gloss, hide any remaining layer line reflections, and provide the premium velvet feel.

Important: Aegis Matte is a final topcoat only. Its micro-textured surface is designed to diffuse light, not to be coated over. Do not attempt to paint or apply Aegis Clear on top of Aegis Matte, as this may result in poor adhesion and an uneven finish.

Pro-Tip (Satin Finish): To create a rich satin sheen, you can blend Aegis Clear and Aegis Matte (try a 1:1 ratio) and apply the mix as your final topcoat.

5. Cleaning

Tools: Clean all brushes, airbrush components, and containers immediately after use with warm, soapy water.
Spills: Wipe up spills with a damp cloth before the product dries.
Cured Product: Once cured, Aegis is water and solvent-resistant and must be removed mechanically (e.g., sanding).

6. Storage, Shelf Life

6.1 Storage Conditions：

To maintain the optimal performance of the product, please follow these storage guidelines:

Environment: Store in a cool, dry place.
Optimal Temperature: Optimally, store at approximately 25°C (77°F).

6.2 Product Shelf Life：

Status	Recommended Shelf Life	Note
Unopened	24 months	Ensure the bottle cap is intact and the seal is maintained.
Once Opened	We recommend using the product within 12 months.	Strictly ensure the container is tightly sealed to prevent surface film formation.

6.3 Maintenance & Sealing (After Opening)：

To prevent the formation of a surface film ("skinning") on the coating:

Clean the Rim: Immediately after use, wipe the bottle rim thoroughly clean.
Seal Tightly: Ensure the cap is tightly sealed immediately after use to minimize air exposure.

6.4 Troubleshooting for Surface Film ("skinning")

If a thin film forms on the top of the coating:

Skim it Off: You can carefully skim this layer off.
Continue Use: The remaining product can still be used.
Dilution: You may dilute the coating with water as needed to adjust the viscosity.

7. Safety & First Aid

Aegis coatings are water-based, low-odor, and very safe for home or workshop use when handled properly.

Use in a well-ventilated area.
Avoid contact with eyes and prolonged contact with skin.
Do not ingest. Keep out of reach of children.
Eye Contact: Immediately flush eyes with plenty of clean water for at least 15 minutes. Seek medical attention if irritation persists.
Skin Contact: Wash the affected area with soap and water.
Ingestion: Do NOT induce vomiting. Rinse mouth with water and seek medical attention immediately, showing this guide or the product bottle.

8. Support

Have questions or need technical advice? We are here to help. Please reach out to our support team for assistance.

Email: support@siraya.tech
Website: siraya.tech (for FAQs, video tutorials, and more)