How to Fill Holes in Surfaces with Resin: Base-Up Technique

Q: Practical Application Tips

Seal open holes first: For surfaces like wood, sealing the gap from underneath or using a temporary backing (e.g., tape or a panel) prevents the resin from leaking out. Work in layers: Pour a small amount, allow it to settle, then add more until the hole is fully filled. This technique works well with deep-penetrating products like EpoxyWood for wood or the Resinstone product for concrete. Eliminate air pockets: Use a stick or spatula to gently coax resin into corners and around irregularities. For fibreglass repairs, ensure the mat is fully saturated.

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Carefully Fill Resin from the Base Up: Best Practice for Surfaces with Holes

Filling holes or deep gaps with resin requires more than simply pouring it over the surface. Using a base-up technique is essential for securing a strong bond and seamless finish, whether working with wood, concrete, or rigid materials.

Why Fill from the Base Up?

When repairing a surface with holes, pouring resin from the base upwards allows it to penetrate and fill all voids thoroughly. This minimises trapped air bubbles and helps the resin cure evenly, which is especially important for structural integrity and waterproofing. Rushing the process increases the risk of weak spots, so take your time to layer small amounts of resin as you go.

Practical Application Tips

Seal open holes first: For surfaces like wood, sealing the gap from underneath or using a temporary backing (e.g., tape or a panel) prevents the resin from leaking out.
Work in layers: Pour a small amount, allow it to settle, then add more until the hole is fully filled. This technique works well with deep-penetrating products like EpoxyWood for wood or the Resinstone product for concrete.
Eliminate air pockets: Use a stick or spatula to gently coax resin into corners and around irregularities. For fibreglass repairs, ensure the mat is fully saturated.

When This Matters Most

Carefully filling from the base up is crucial when waterproofing or structurally repairing deep holes in wood, concrete, or rigid plastic. This method gives the resin time to bond thoroughly, especially when using kits such as the Resin Fibreglass Repair Kit for boats or pool repairs.

Related guides

How Do You Apply Resin To A Surface With Holes

Using a careful base-up filling technique is key to lasting, high-quality repairs on porous or damaged surfaces. For more detailed resin application guidance, visit our main page on how to apply resin to a surface with holes.