International Epiglass HT330 Microballoons 12kg – Lightweight Epoxy Fairing Filler

International Epiglass HT330 Microballoons – 12kg

Lightweight fairing and filling additive for epoxy systems

International Epiglass HT330 Microballoons are ultra-lightweight hollow spheres designed to be mixed with epoxy resins to create an easy-sanding, low-density fairing compound. Ideal for marine repairs, composite builds, and surface fairing applications where weight reduction and smooth finishing are essential.

Perfect for boat builders, repairers, and DIY owners looking to achieve a smooth, professional finish before priming and topcoating.

Key Features:

• ✔ Ultra-lightweight hollow microspheres

• ✔ Easy to mix into epoxy resin systems

• ✔ Excellent sanding properties

• ✔ Ideal for fairing, profiling, and filling

• ✔ Reduces overall weight of repair areas

• ✔ Suitable for marine and composite applications

Typical Applications:

• Fairing hulls and decks

• Filling minor surface imperfections

• Profiling composite structures

• Cosmetic smoothing before primer application

• Lightweight filling where structural strength is not critical

How to Use:

1. Mix your epoxy resin and hardener as per manufacturer instructions.

2. Gradually add HT330 Microballoons while stirring until desired consistency is achieved (from peanut butter to light fairing mix).

3. Apply with a spreader or trowel.

4. Allow full cure before sanding and overcoating.

⚠ Note: HT330 Microballoons are intended for fairing and cosmetic filling only. For structural bonding applications, use a structural filler such as silica or fibre reinforcement.