Choosing the correct clear binder
For mixing glow-in-the-dark powder (especially strontium aluminate-based powders) with clear oil-based paints, you’re looking for a transparent medium that:
- Dries slowly to allow even distribution of particles.
- Is non-yellowing and remains clear after drying.
- Has strong adhesion to your surface (metal, concrete, wood, etc.).
- Does not block light from charging the glow powder.
Here’s a breakdown of suitable clear oil-based options available or likely to be found in Singapore:
✅ Recommended Types of Clear Oil-Based Paints
| Product Type | Description | Notes |
|---|---|---|
| Alkyd Resin (Clear) | Oil-modified synthetic resin. Commonly used in industrial coatings. | Good durability. Look for clear gloss or satin base. |
| Clear Polyurethane (Oil-Based) | Tough, protective oil-based top coat. Used for wood, floors, and metal. | Choose non-yellowing versions. |
| Spar Urethane (Oil-Based) | Designed for outdoor use, UV resistant. | Check if it’s truly transparent. Some may amber. |
| Artist’s Oil Medium (Linseed/Stand Oil based) | Used in fine art. Mixes well, but slow to dry. | Best for small-scale applications. |
| Industrial Clear Enamels | Often used for metal or machinery. | Check datasheet—some are oil-based with good clarity. |
🛍 Where to Buy in Singapore
| Retailer | What to Look For |
|---|---|
| Art Friend (Bras Basah, Plaza Singapura) | Artist’s clear oil mediums (Winsor & Newton, etc.) |
| Home-Fix / Selffix / DIY stores | Polyurethane clear coatings (look for oil-based types) |
| Paint Shops (e.g., Pentalux, Jotun, Nippon dealers) | Ask for clear alkyd/oil-based varnishes or sealers |
| Industrial Supply Stores (e.g., Horme, Teck Cheong) | Industrial clear enamels or polyurethane top coats |
⚠️ Important Tips
- Always check clarity after drying — some “clear” products yellow with time.
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Glow powder needs light to charge, so don’t use any paint that forms a cloudy or colored layer.
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Stir constantly during application — glow powder settles fast in oil mediums.
- Read the Painting Instructions
🔧 Best Practice for Mixing
- Use a 1:2 to 1:4 ratio (powder : paint) depending on brightness required.
- Use white primer/base coat on surface for best glow effect.
- Mix small batches to avoid settling.
- Apply with brush, roller, or spray (filter if spraying).