Penetrating

Penetrating epoxy resins represent a crucial step in the professional production of epoxy tables. They are used to seal the pores in wood, thereby preventing bubble formation during the subsequent pouring of the main casting layer. Thanks to their deep penetration into the wood structure, they strengthen the surface and create a reliable adhesion bridge for the following epoxy layers.

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What are penetrating epoxy resins used for?

• prevent the release of air from wood pores during casting,
• help achieve a perfectly clear and smooth casting without defects,
• ensure better adhesion between wood and casting resin,
• create a protective layer that minimizes the risk of epoxy delamination over time.

Why use penetration before the actual casting?

Without proper penetration, irreversible defects may occur during table top production – typically in the form of bubbles, poor adhesion or layer separation. A correctly selected penetrating resin is therefore the foundation of professional epoxy work and significantly increases both the quality and durability of the finished table.

Ideal solution for

• epoxy table production (river tables, dining and coffee tables),
• carpenters and designers working with wood + epoxy combinations,
• demanding projects where clarity, strength and long-term stability are essential.

In this category you will find carefully selected penetrating epoxy resins that are proven for use with wood. They feature low viscosity, excellent surface wetting and an optimal working time, making them an ideal base for subsequent table top casting.

✅ Frequently asked questions about penetrating resins

❓What is penetrating epoxy resin used for?

Penetrating resins are used to seal wood pores and prevent air from escaping during the casting of the main layer. The result is a clean, bubble-free casting and perfect adhesion between wood and epoxy.

❓Is penetration necessary even for hard and dry wood?

Yes, even hard wood may contain microscopic pores or cracks that can release air during casting. Penetration is recommended for all types of wood if you want to achieve a professional result.

❓How is penetrating resin applied?

Apply the resin in a thin layer using a brush, roller or by pouring, and spread it evenly. Allow it to partially cure (e.g. 12–24 hours) depending on the system, then proceed with the main casting layer.

❓Can diluted casting resin be used instead of penetration?

This is not recommended. Casting resins usually have higher viscosity and do not penetrate wood structure sufficiently. Penetrating systems are specifically designed for this purpose – they offer lower viscosity, longer working time and superior adhesion.

❓Does the penetrating layer need sanding before casting?

If the surface after penetration is smooth and glossy (so-called “glass surface”), light sanding with sandpaper (approx. 180–240 grit) and degreasing is recommended. For porous, partially absorbed surfaces, sanding is usually not necessary.